OROS Wiki - User contributions [en]

Sound Power Manual

2020-06-29T20:59:22Z

AmberSmith:

The Sound Power Level generated from a source is the value used to quantify its sound emission properties. Because this result should be comparable from one test place to another, the measurement should be realized following a particular test procedure. This procedure is defined by international standards, which are selected depending principally on the source type, the test environment, and the accuracy required. The OROS SOUND POWER Solution has been designed to let you achieve that type of test in the most efficient and accurate way.

The "getting started" on-line help explains in detail the three main steps:

* Setup
* Measurement
* Report
It is using an applied approach where explanations are given as questions in case you have any during a standard measurement process. The "getting started" on-line help will let you get the most out of your Sound Power Solution and set you on the right track.

==Sound Power Environment==
===Starting with Sound Power Software===
When Sound Power starts, the following window is displayed. You can select to open an existing Setup or begin with a new one that you setup in this dialog:

[[Image:SOUND_POWER_19.png|framed|none]]

====User Management====
The Sound Power Solution uses predefined users. There are two predefined users: the "SP OPERATOR" and "SP MANAGER". The SP Operator runs the application in a standard way.

[[Image:SOUND_POWER_20.png|framed|none]]

In case the application needs to be customized, the user can log itself as "SP Manager". In this case, a password will be requested: the password is "soundpower". Logging in as SP Manager will let the user modify the "Sound Power" project in NVGate.

[[Image:SOUND_POWER_21.png|framed|none]]

'''Warning''': Modifying the "Sound Power" project could create problems in the operation of the application. In such a case, the default "Sound Power" project should be kept as a back up and restored. Otherwise the Sound Power application should be reinstalled.

----

===Functioning Modes===
There are three main steps to carry out a measurement process.

====Setup====
Using the Sound Power Software, the first step of the measurement is the configuration of the test setup. The setup browser will let you define the measurement surface, microphone positions, input connections and measurement steps. Then, the analysis parameters such as the test duration will be described. The final step of the test setup configuration concerns the corrections and validity tests described by the international standards.

You should have a display like the following one:

[[Image:SOUND_POWER_22.png|framed|none]]

====Measurement====
During the second step, a test setup can be reloaded and a measurement panel displayed. Only at this stage can the measurement be started. The data is obtained and Sound Power results are automatically calculated, giving straight away calculated corrections and standard validation.

[[Image:SOUND_POWER_23.png|framed|none]]

====Report====
The third and last step is the automatic generation of the Sound Power report as a customized document in Microsoft Excel®.

[[Image:SOUND_POWER_24.png|framed|none]]

===Create a New Setup===
The Setup creation is based on the use of a template. Create the new Setup from the first "Setup" window, then you can find the information from Sound Power in the '''Setup Browser''' tab in the workspace:

[[Image:SOUND_POWER_25.png|framed|none]]

'''Note:''' The icon means the setting is only for user information, it cannot be changed.

===Open a Setup===
When you choose to open a Setup, Sound Power allows you to select an Excel® file template. You can select a default template to open or you can choose to open one of your saved ones. This action avoids you having to redo your settings each time you begin a measurement process.

==Setup Browser==
====Dimensions====
In the '''Setup Browser''' tab from the workspace, enter the dimensions of the surface in meters (double click on a setting to get it).

[[Image:SOUND_POWER_26.png|framed|none]]

[[Image:SOUND_POWER_27.png|framed|none]]

[[Image:SOUND_POWER_28.png|framed|none]]

'''Note:''' For the hemispheric surface, just enter the radius value.

====Positions====
Set-up the microphone positions by entering the value in the table. To access the table, double click on '''Position''' from the '''Source''' module in the '''Setup Browser''' tab from the workspace.

For a parallelepiped surface type, the following table is displayed:

[[Image:SOUND_POWER_29.png|framed|none]]

For a sphere surface type, the following table is displayed:

[[Image:SOUND_POWER_30.png|framed|none]]

====Microphone Settings====
In the '''Setup Browser''' tab from the workspace, double click on the '''Microphones''' module, and the following window is displayed:

[[Image:SOUND_POWER_31.png|framed|none]]

'''Note:''' By default all the inputs are set to Default microphone in the Microphone column. So if you do not have any microphones in your transducer database, enter the new microphones from NVGate® (click on the following button to see how to do it). Then from Sound Power software, click on '''Update transducer database''' from the '''Tools''' menu.

'''Tip:''' Double click on the '''Coupling''' column header and select '''a parameter''' in order to assign this parameter to all the inputs.

----

===Analysis===
====1/n Octave====
The 1/n octave module allows you to setup the analysis. You can only change the Upper central frequency and the Average duration. All other settings are for user information.

[[Image:SOUND_POWER_32.png|framed|none]]

'''1/n octave:''' The analysis is done in the 1/3 octave mode with no weighting process.

'''Overall Analysis:''' The results of the overall analysis are given as Z weighted levels and A-weighted levels. Refer to measurement screen configurations for details on levels display.

'''Frequency Range:''' The analysis can be done between two available frequency bands:

<nowiki>[</nowiki>20 Hz; 10 KHz<nowiki>]</nowiki> or <nowiki>[</nowiki>20 Hz; 20 KHz<nowiki>]</nowiki>. The lower frequency is fixed.

'''Average:''' Set the measurement average duration.

===Standard conformity===
====Corrections====
=====Frequency range=====
The Frequency range sub-module allows you to set the frequency range into which you want the correction to be done.

[[Image:SOUND_POWER_33.png|framed|none]]

'''Sound power spectrum:''' Frequency range where the correction is applied on the sound power spectrum.

'''Sound power level:''' Frequency range where the correction is applied on the sound power level. This range corresponds to the one set in the 1/n octave module.

=====K1 correction=====
This type of correction is about the background noise.

There are three methods to define the K1 correction factor (Manual, File or Measurement). Click on the method you want know more about.

=====K2 correction=====
This type of correction is about the measurement environment.

There are five methods to define the K2 correction factor (Approached method, File, Manual, Reference source or RT 60). Click on the method you want know more about.

The File and Manual methods are explained in the [file://mk:@MSITStore:C:\OROS%20PROGS\SoundPower\Getting%20started%20with%20Sound%20Power.chm::/K1_correction.htm K1 correction] topic.

=====K3 correction=====
This type of correction is an additional correction.

There are two methods to define the K3 correction factor (File or Manual). The File and Manual methods are explained in the [file://mk:@MSITStore:C:\OROS%20PROGS\SoundPower\Getting%20started%20with%20Sound%20Power.chm::/K1_correction.htm K1 correction] topic.

====Repeatability====
The repeatability module allows you to make the measurement either 1 time or 3 times. If you select 3 times, it means that the average is calculated between the two results which have a difference less than 1 dBA. If the three results have a difference of less than 1 dBA, the average is calculated between the two higher results.

Double click on '''Repeat measurement''' to access it.

[[Image:SOUND_POWER_34.png|framed|none]]

==Manage your Setup==
Manage your setup from the '''File''' menu. There are 4 ways to manage your setup:

'''New Setup:''' allows you to load a new template among those suggested by default.

'''Load Setup:''' allows you to load a saved template or to load a default template from a folder.

'''Save Setup:''' saves the current setup.

'''Save Setup As:''' saves the current setup with a name you specify.

==Measurement Panel==
===Background Noise===
====Background Noise Correction====
To carry out the background noise process click on the '''Measurement panel''' tab from the workspace.

The background noise can be measured in the case where "Measurement" is selected as a K1 method (in the Setup browser). Then you should click on the [[Image:SOUND_POWER_35.png]] button in order to initialize the background noise process (the background noise measurement does not start by clicking on this button). The Setup browser tab becomes Setup viewer, which means that you cannot change any setting.

'''Notes:'''

• a dialog appears if the transducers that you are using have not been calibrated.

• if the K1 method is set to File or Manual, the button above will be grayed.

Your screen is split in two parts: Sound Power (the controller) and NVGate® (the display).

During the background noise setup, NVGate® creates 2 layouts:

* LEVELS (shows all the A weighted input levels)
* SPECTRA (shows average 1/N octave signals and Z weighted global levels)
'''Notes:''' the number of traces in the layout display can change according to the K1 measurement setting ("One position for all" or "All positions").

You can also switch from one layout to the other during the run.

When the software is ready to start the background noise measurement, the following tool appears at the bottom of the Measurement Panel:

[[Image:SOUND_POWER_36.png|framed|none]]

====Background Noise Measurement====
1. To start the measurement, click on the button from the '''Measurement Panel''' (the status bar indicates "Running..."). You should have a display like the following one:

[[Image:SOUND_POWER_37.png|framed|none]]

2. Wait few seconds for the results (the status bar indicates "Getting results...")

===Source Noise===
The source noise process is started from the '''Measurement panel''' tab from the workspace.

Click on the [[Image:SOUND_POWER_38.png]] button in order to initialize the source noise process, NVGate® software updates the input connections (the source noise measurement does not start by clicking on this button). The Setup browser tab becomes Setup viewer, which means that you cannot change any setting.

When the software is ready to start the source noise measurement, the following tool appears at the bottom of the Measurement Panel:

[[Image:SOUND_POWER_39.png|framed|none]]

Source Noise Measurement

1. To start the measurement, click on the "RUN" button from the '''Measurement Panel''' (the status bar indicates "Running..."). You should have a display like the following one:

[[Image:SOUND_POWER_40.png|framed|none]]

The number of runs depends on the number of steps you have selected in the microphones dialog in the setup browser and on the number of repeatability you have selected (1 or 3 times).

'''Tip:''' For example if you have selected 3 times for the repeatability and 2 steps in the microphones you will have to click the run button 6 times:

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center" bgcolor = "#F3F3D6"|Run1 - Step1
|align = "center" bgcolor = "#F3F3D6"|Run1 - Step2

|-
|align = "center" bgcolor = "#F3F3D6"|Run2 - Step1
|align = "center" bgcolor = "#F3F3D6"|Run2 - Step2

|-
|align = "center" bgcolor = "#F3F3D6"|Run3 - Step1
|align = "center" bgcolor = "#F3F3D6"|Run3 - Step2

|}

2. Wait few seconds for the results (the status bar indicates "Getting results...")

==Report Edition==
===Fill out your report===
When the measurement is finished, click on the [[Image:SOUND_POWER_41.png|framed|none]] button from the '''Measurement Panel''' in order to fill out the report and check the calculated results, such as Sound power (dB and dBA), etc.

You have three tabs containing fields that you can fill out (double click on a cell to get the field) in order to make your report properly:

[[Image:SOUND_POWER_03.png|framed|none]]

Once it is finished, click on '''OK''', you can select to save the measurement or not. If you select to save the measurement, the following window appears:

Specify the file name and click on '''Save'''.

See how to [file://mk:@MSITStore:C:\OROS%20PROGS\SoundPower\Getting%20started%20with%20Sound%20Power.chm::/Report_definition/Report_preview.htm view the report...]

See also [file://mk:@MSITStore:C:\OROS%20PROGS\SoundPower\Getting%20started%20with%20Sound%20Power.chm::/Report_customization.htm Report information]

===Results===
The Results tab shows the information about the correction factors (K1, K2) and indicates the calculated results, such as Sound Power in dBZ and dBA, etc.

You cannot enter any data into these fields.

[[Image:SOUND_POWER_42.png|framed|none]]

===Standard conformity===
The Standard conformity tab shows you the information about:

'''Background noise test:''' this test is only about the "Low Delta Level". If the difference between the source level and the background level is up to the "Low Delta Level" given by the standard, the test is failed.

'''Environmental conditions test:''' this test is only about the K2 correction factor. If the K2 values are up to the one given by the standard, the test is failed. If the test is failed, the K2 values set in the report will be the K2 max given by the standard.

'''Directivity test:''' the directivity calculation is made between the maximum and minimum levels measured in dBA. If the difference between the max and min is up to the position number, the test is failed (cf. standard ISO 3744). So it is recommended that you do another measurement process with a greater position number.

'''Repeatability test:''' this test is significant if you have selected a 3 time repeatability test. The average is calculated between the two results which have a difference less than 1 dBA. If the three results have a difference less than 1 dBA, the average is calculated between the two higher results. The test is failed if the three results have a difference up to 1 dBA.

You cannot enter any data into these fields.

[[Image:SOUND_POWER_43.png|framed|none]]

----

===Report Preview===
When the report is filled out, click on the [[Image:SOUND_POWER_44.png]] button from the '''Measurement Panel''' in order to open the report you want to see. The following window appears:

[[Image:SOUND_POWER_45.png|framed|none]]

Select the saved setup and click on '''Open '''(an Excel worksheet is displayed containing all the information about your setup and measurement). Your report should look like the following one:

[[Image:SOUND_POWER_46.png|framed|none]]

====Report Customization====
You have the possibility to choose what information you want to display in the "Report" dialog from the Sound Power software. If you want the modifications to appear each time a user loads a SETUP, customize it in Excel first. To do this:

1. From the '''Measurement Panel''', click on the [[Image:SOUND_POWER_47.png]] button in order to open the Setup you want to modify.

2. Once the Setup is opened in Excel, select the "Report INFO" tab, so you should see the following sheet:

{|border="2" cellspacing="0" cellpadding="4" width="103%"
|
[[Image:SOUND_POWER_48.png|framed|none]]

|Legend:

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|bgcolor = "#D9FFD9"| 
|Value entered by the user from Sound Power

|-
|bgcolor = "#FFF297"| 
|Description

|-
|bgcolor = "#000000"| 
|Value entered by the user from Excel

|-
|bgcolor = "#BC79FF"| 
|Data "calculated" by Sound Power

|}
From this sheet, the titles of each part are displayed as tabs from the "Report" dialog in Sound Power (Test Information, Weather, Source, etc...).

|}

3. Click on the cell corresponding to the data you want to see in the report. For example, the RPM data, and type YES.

[[Image:SOUND_POWER_49.png|framed|none]]

4. Click on the green cell corresponding to RPM and then click on the label cell.

[[Image:SOUND_POWER_50.png|framed|none]]

5. When RPM is highlighted, press '''CTRL<nowiki>+</nowiki>c''' to copy the value (be careful to do not change the value) and then click on the '''Report''' tab.

6. Click on a free cell and type RPM as a title for the data you are about to insert as described in the following picture.

[[Image:SOUND_POWER_51.png|framed|none]]

7. Click on the cell next to the previous one then type = and press '''CTRL<nowiki>+</nowiki>v''' in order to paste the label previously copied.

[[Image:SOUND_POWER_52.png|framed|none]]

Press '''Enter''' to apply the computation.

8. Save your Setup from Excel. The next time the Setup will be loaded, the RPM field will be activated, so the user will be able to enter a value for the RPM.

9. The result of this procedure is available from Sound Power in the Measurement Panel by clicking on the
[[Image:SOUND_POWER_53.png]]button.

[[Image:SOUND_POWER_54.png|framed|none]]

==Tutorial==
===Welcome to the tutorial===
This tutorial is designed to teach you quickly how to use the Sound Power software. Along the way, you will learn the basic steps of building a Setup.

These quick and easy lessons take you step by step through the process of displaying traces, creating a setup, saving a setup etc.

'''The First lesson'''

You will learn how to create and save a setup.

'''The Second lesson'''

This lesson will teach you to load a saved setup and to make a measurement.

===First Lesson===
=====Context:=====
The aim is to create and prepare a setup to study the noise of a construction vehicle, like a bulldozer for example. The idea is to re-load the created setup afterwards, making the software operation easier for the daily user.

Suppose that you need 12 positions to make your measurement according to the standards and you have only 6 microphones at your disposal. The standard you have to select is the ISO 6395 with a sphere surface.

=====Preliminary step (create the microphones needed)=====
This step explains how to create the 6 microphones that you need to carry out the measurement process (this is made from NVGate® software).

1. From the '''Start''' menu, select '''Programs''', '''NVSolutions''' then start '''Sound Power On-line Help''' in order to read the Sound Power HTML Help from NVGate®.

2. Switch to NVGate® software.

3. From the '''Tools''' menu, select '''Transducers''' then '''Definition''' and the following window is displayed:

[[Image:SOUND_POWER_55.png|framed|none]]

4. Select '''Microphone''', and click on '''New''' from the "Transducer". The following window is displayed:

[[Image:SOUND_POWER_56.png|framed|none]]

Identify the first microphone by naming it "Mic1". Feel free to fill out the "Manufacturer", "Model" and "Serial number" fields as you like.

For the "Coupling", select '''ICP''' and enter '''50m'''(V)/(Pa) for the microphone sensitivity. Click on '''OK''' when finished.

'''Note:''' If you have LEMO connectors on your hardware, select '''AC''' for the coupling setting instead of ICP.

5. Repeat step 4 for each microphone. Identify the 6 microphones by Mic1, Mic2, ..., Mic6. Only change the "Identifier" and "Serial number" fields for each microphone.

6. When you have created the 6 microphones, click on '''OK''' from the "Transducer database" window and then switch back to Sound Power software.

7. From the '''Tools''' menu, select '''Update transducer database'''.

=====Create a Setup=====
This step shows you how to load a default setup and create a new one.

1. Select '''New Setup''' from the '''File''' menu.

2. From the Surface type, select '''Sphere''' and number of positions = '''12'''. Click on '''OK'''. You can choose whether or not to save the current setup.

3. In this case, the radius of the sphere must be 32 meters (this value is used for the hemisphere surface computation), so double click on the '''Dimensions''' setting and enter 32. Click on '''OK'''.

4. Double click on '''Positions''' from the Setup Browser and take a look at the positions coordinates in order to place your microphones, click on '''OK'''.

5. Double click on '''Microphones''' from the Setup browser. Set the Number of microphones to 6. The number of steps is adjusted to 2. Suppose that the measured levels are close to 100dB, so you have to set the range peak closer to this value. Type 100 in each Range peak cell of the inputs (the value is automatically adjusted taking into account the microphone sensitivities).

6. Set the positions in the Step 2 column like in the following table and click on '''OK''':

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center" bgcolor = "#C0C0C0"|Step 1
|align = "center" bgcolor = "#C0C0C0"|Step 2

|-
|align = "center"|Pos1
|align = "center"|Pos7

|-
|align = "center" bgcolor = "#FFFFE1"|Pos2
|align = "center" bgcolor = "#FFFFE1"|Pos8

|-
|align = "center"|Pos3
|align = "center"|Pos9

|-
|align = "center" bgcolor = "#FFFFE1"|Pos4
|align = "center" bgcolor = "#FFFFE1"|Pos10

|-
|align = "center"|Pos5
|align = "center"|Pos11

|-
|align = "center" bgcolor = "#FFFFE1"|Pos6
|align = "center" bgcolor = "#FFFFE1"|Pos12

|}

7. In the 1/n Octave module from the Setup Browser, set the Upper central frequency to '''20KHz''' and the Average duration to 15s.

8. Knowing that all positions can be measured only in two steps in this particular case and that it is not necessary to measure the background noise for all the positions, we choose to measure it only at the position 1. To achieve that, we do the setup as it is described below.

In the Corrections module, set for K1:

{|border="2" cellspacing="0" cellpadding="4" width="86%"
|'''Method:''' Measurement '''Measurement:''' One position for all '''Position:''' Pos1 '''Correction mode:''' Average
|
[[Image:SOUND_POWER_57.png|framed|none]]

|}

9. Taking into account that the measurement is carried out outdoors, we consider that the environmental correction K2 is null.

For K2:

{|border="2" cellspacing="0" cellpadding="4" width="103%"
|'''Method:''' Manual
|
[[Image:SOUND_POWER_58.png|framed|none]]

|}

Double click on '''K2 values''' and set all the values to 0dB. Click on '''OK'''.

10. Taking into account the method accuracy required, no weather correction should be implemented, so the K3 correction factor will not be displayed in the Setup Browser.

11. Double click on '''Repeat measurement''' from the Repeatability module, set the value to '''3 times'''.

----

=====Save a Setup=====
1. From the '''File''' menu, select '''Save Setup as'''.

2. Name the Setup Tutorial_setup1 and specify the location: the directory C:\Program Files\OROS\OR38\NVSolutions\SoundPower\Setups is the one installed by default, but you can choose any other location.

----

===Second lesson===
The aim of the second lesson is to go through a realistic measurement process (load a setup, display traces, measurements and results, generate a report).

Switch to the '''Measurement Panel''' tab from the workspace.

=====Load a Setup=====
You are going to load the Setup saved in the first lesson.

1. From the '''File''' menu, select '''Load Setup'''.

2. Select '''Tutorial_setup1''' and click on '''Open'''.

=====Measurement process=====
There are several steps during the measurement: the transducer calibration, the background noise measurement and the source noise measurement.

1. Start the background noise measurement process by clicking on the [[Image:SOUND_POWER_59.png]] button. A dialog is displayed that warns you in case your microphones have not been calibrated today.

[[Image:SOUND_POWER_60.png|framed|none]]

Click on '''No'''.

2. Calibrate your microphones

3. When the calibration is OK, click on the [[Image:SOUND_POWER_61.png]]button in order to initialize the background noise measurement process (the background noise measurement does not start by clicking on this button).

4. To start the measurement, click on the [[Image:SOUND_POWER_62.png]] button from the '''Measurement Panel''' (the status bar indicates "Running..."). The measurement lasts 15 seconds (as defined in the first lesson of the tutorial). When the averaging is finished, wait for the results to download (the status bar indicates "Getting results...").

5. Click on the [[Image:SOUND_POWER_63.png]] button in order to initialize the source noise measurement process (the source noise measurement does not start by clicking on this button).

6. To start the measurement, click on the [[Image:SOUND_POWER_64.png]] button from the '''Measurement Panel''' (the status bar indicates "Running...") until the end of the measurement (Run1-Step1, Run2-Step1, Run3-Step1, Run1-Step2, Run2-Step2, Run3-Step2).

'''Note:''' As you have selected 2 steps (it means that you do not have enough microphones to do the measurement in one step) in the measurement process, you will have to change either the microphone positions or to move the source between the 2 steps.

=====Fill out and generate a report=====
Fill out your report before printing in order to find all the information about the weather conditions, user name and the many other features.

1. When the measurement is finished, click on the [[Image:SOUND_POWER_65.png|framed|none]] button from the '''Measurement Panel''' in order to fill out the report like the following one:

[[Image:SOUND_POWER_66.png|framed|none]]

2.

[[Image:SOUND_POWER_67.png|framed|none]]

 

----

3.

[[Image:SOUND_POWER_68.png|framed|none]]

4.

[[Image:SOUND_POWER_69.png|framed|none]]

5.

[[Image:SOUND_POWER_70.png|framed|none]]

In this case for example, the Background noise test has failed. It means that you may have to go once again through a measurement process until all the tests will be positives.

6. Click on '''OK'''.

=====Save the measurement=====
The "Save" dialog is displayed, then select '''Yes'''. Name the Setup: Tutorial_measurement1. Specify the location (in order to avoid mixing your measurement results with setup templates, place it in another location than the "Setups" and "Templates" directories). Click on '''OK'''.

=====Preview your report=====
Click on the [[Image:SOUND_POWER_71.png]]button from the '''Measurement Panel''' in order to visualize the report corresponding to the measurement you have made: the last saved measurement file will be proposed by default.

Sound Power Install

2020-06-29T19:30:11Z

AmberSmith:

''The Sound Power Solution is meant to work in combination with its associated Analyzer software '''NVGATE'''''''®''''. In this way, the full power of the '''NVGATE'''''''® ''''platform and associated multi channel '''INSTRUMENT HARDWARE''' is made fully available for your one clear objective: measuring Sound Power.''

This "'''INSTALLATION GUIDE"''' will guide you through the installation of the Sound Power software and help you run it for the first time. It will explain in particular the way the installation should be done in parallel to NVGATE® and to the Instrument Hardware.

==First Check==
====Recommended PC configuration====

See [[PC Requirement]] page.

====Equipment required for the installation====
* OROS Sound Power V3.10.1 february 2020: https://orossas.sharepoint.com/:u:/g/support/EWgD6QwOyCxMoyBPOgW3PhwBCkV79kCfJvjVkC98sY-80g?e=bddyGG

* A dongle with NVGate that is OROS Sound Power authorized

==Installation==
===Installation of the NVGate software===
'''NVGate'''''' ''' '''must be installed''' properly on the PC before starting the installation of Sound Power.

To install NVGate, please refer to the "'''''OR3X/NVGate Installation Guide'''''".

===Installation of the Sound Power Solution===
Ensure NVGate is installed and running on the PC before starting the installation of Sound Power.

The procedure of installation of Sound Power is the same for Windows 98, 2000 and XP.

The following screenshots have been created under Windows XP.

Insert the CD in the appropriate drive and wait for the Autorun program (or run the "setup.exe" program from the CD).

Wait until the following window is displayed:

[[Image:SOUND_POWER_04.png|framed|none]]

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_05.png|framed|none]]

Read the terms of the license agreement and select "I accept the terms in the license agreement" if you agree.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_06.png|framed|none]]

Enter the user name, the organization and choose to install the application for all users or only for you.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_07.png|framed|none]]

Select the location of the "Sound Power" folder. By default, OROS Sound Power is installed in:

C:\Program Files\OROS\NVSolutions\SoundPower.

Installing Sound Power in the NVGate directory (as it is by default) enables links between the Sound Power Online Help and the NVGate Online Help.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_08.png|framed|none]]

Choose the setup type. It is recommended to select "Complete".

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_09.png|framed|none]]

Click on "Install" to begin the installation.

Wait until the following window is displayed:

[[Image:SOUND_POWER_10.png|framed|none]]

Click on "Finish".

The following window is displayed:

[[Image:SOUND_POWER_11.png|framed|none]]

Indicate the location of NVGate.

If NVGate is installed on the same PC:

* Choose "Local" and indicate the path for "NVGate.exe". By default, it is: "C:\ProgramFiles\OROS\OR3X".

If you are using NVGate from another PC:

* Choose "Remote" and indicate the IP address of this second PC.

If you want to change the Sound Power configuration:

* Open the "Start" menu, select "Programs", then "NVSolutions" and choose "Sound Power Configuration".

At this stage:

Plug in the '''Dongle''' to use Sound Power in '''Office Mode'''

Plug in the '''Hardware''' to use Sound Power in the '''Connected Mode'''.

And then, run "Sound Power".

The following window is displayed:

[[Image:SOUND_POWER_12.png|framed|none]]

You can create a new setup by choosing the Standard, the Surface type and the Number of positions of your experiment or you can load a setup that is already created.

Click on "OK".

If NVGate has not been started previously, the following window is first displayed:

[[Image:SOUND_POWER_13.png|framed|none]]

Enter the first name and last name of the user and choose whether or not to set a password.

''Notice'''': The access level for the first user has to be "full".''

Then, the following window is displayed:

[[Image:SOUND_POWER_14.png|framed|none]]

If NVGate has already been started by itself before, the selection of the running mode will be asked directly. Choose to start Sound Power in "Connection to hardware" or in "Office mode".

===Updating the Software version===
'''Uninstall the previous version of Sound Power''' installed on the PC: Insert the CD in the appropriate driver and wait for the Autorun program (or run the "setup.exe" program from the CD). The following window is displayed:

[[Image:SOUND_POWER_15.png|framed|none]]

'''Click''' on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_16.png|framed|none]]

Choose to remove the current version.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_17.png|framed|none]]

Confirm by clicking on "Remove".

Wait until the following window is displayed:

[[Image:SOUND_POWER_18.png|framed|none]]

Click on Finish

1. '''Start the installation of the new version'''. Please follow the procedure described from the chapter "Installation of the Sound Power Solution".

----

===Troubleshooting===

''Sound Power may not start. In this case, one of the following error messages is returned:''

'''« File Sound Power.ini not found ! »'''

{|border="0" cellspacing="2" width="100%"

|''Run the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''

|}
'''« File Sound Power.ini not valid ! »'''

{|border="0" cellspacing="2" width="100%"
|''Run the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''

|}

'''« Couldn<nowiki>'</nowiki>t start NVGate ! »'''

* ''Check the path of "NVGate.exe" in the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''
'''« Connection to NVGate has failed ! »'''

1. If the NVGate location is = Local:

* ''Check that NVGate is running. If not, escape from Sound Power and run it ''again''.
* ''Check that NVGate can start on its side.''

2. If NVGate location is = Remote:

* ''Check that NVGate is running on the remote PC.''
* ''Check that the IP address of the remote PC is correct in the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration").''
'''« You don<nowiki>'</nowiki>t have the permission to use OROS Sound Power ! »'''

* ''Ensure that you are using a dongle that is configured for Sound Power''
* ''Contact your OROS Agent''
'''« Sound Power project not found ! »'''
* ''Check the path of "NVGATE.EXE" in the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration") and validate (press "OK) in Local. If you are operating Sound Power in a Remote location, copy the "Sound Power" directory from the folder of installation of Sound Power into the default base.''

Sound Power Install

2020-06-29T19:26:23Z

AmberSmith:

''The Sound Power Solution is meant to work in combination with its associated Analyzer software '''NVGATE'''''''®''''. In this way, the full power of the '''NVGATE'''''''® ''''platform and associated multi channel '''INSTRUMENT HARDWARE''' is made fully available for your one clear objective: measuring Sound Power.''

This "'''INSTALLATION GUIDE"''' will guide you through the installation of the Sound Power software and help you run it for the first time. It will explain in particular the way the installation should be done in parallel to NVGATE® and to the Instrument Hardware.

==First Check==
====Recommended PC configuration====

See [[PC Requirement]] page.

====Equipment required for the installation====
* OROS Sound Power V3.10.1 february 2020: https://orossas.sharepoint.com/:u:/g/support/EWgD6QwOyCxMoyBPOgW3PhwBCkV79kCfJvjVkC98sY-80g?e=bddyGG

* A dongle with NVGate that is OROS Sound Power authorized

==Installation==
===Installation of the NVGate software===
'''NVGate'''''' ''' '''must be installed''' properly on the PC before starting the installation of Sound Power.

To install NVGate, please refer to the "'''''OR3X/NVGate Installation Guide'''''".

===Installation of the Sound Power Solution===
Ensure NVGate is installed and running on the PC before starting the installation of Sound Power.

The procedure of installation of Sound Power is the same for Windows 98, 2000 and XP.

The following screenshots have been created under Windows XP.

Insert the CD in the appropriate drive and wait for the Autorun program (or run the "setup.exe" program from the CD).

Wait until the following window is displayed:

[[Image:SOUND_POWER_04.png|framed|none]]

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_05.png|framed|none]]

Read the terms of the license agreement and select "I accept the terms in the license agreement" if you agree.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_06.png|framed|none]]

Enter the user name, the organization and choose to install the application for all users or only for you.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_07.png|framed|none]]

Select the location of the "Sound Power" folder. By default, OROS Sound Power is installed in:

C:\Program Files\OROS\NVSolutions\SoundPower.

Installing Sound Power in the NVGate directory (as it is by default) enables links between the Sound Power Online Help and the NVGate Online Help.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_08.png|framed|none]]

Choose the setup type. It is recommended to select "Complete".

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_09.png|framed|none]]

Click on "Install" to begin the installation.

Wait until the following window is displayed:

[[Image:SOUND_POWER_10.png|framed|none]]

Click on "Finish".

The following window is displayed:

[[Image:SOUND_POWER_11.png|framed|none]]

Indicate the location of NVGate.

If NVGate is installed on the same PC:

* Choose "Local" and indicate the path for "NVGate.exe". By default, it is: "C:\ProgramFiles\OROS\OR3X".

If you are using NVGate from another PC:

* Choose "Remote" and indicate the IP address of this second PC.

If you want to change the Sound Power configuration:

* Open the "Start" menu, select "Programs", then "NVSolutions" and choose "Sound Power Configuration".

At this stage:

Plug in the '''Dongle''' to use Sound Power in '''Office Mode'''

Plug in the '''Hardware''' to use Sound Power in the '''Connected Mode'''.

And then, run "Sound Power".

The following window is displayed:

[[Image:SOUND_POWER_12.png|framed|none]]

You can create a new setup by choosing the Standard, the Surface type and the Number of positions of your experiment or you can load a setup that is already created.

Click on "OK".

If NVGate has not been started previously, the following window is first displayed:

[[Image:SOUND_POWER_13.png|framed|none]]

Enter the first name and last name of the user and choose whether or not to set a password.

''Notice'''': The access level for the first user has to be "full".''

Then, the following window is displayed:

[[Image:SOUND_POWER_14.png|framed|none]]

If NVGate has already been started by itself before, the selection of the running mode will be asked directly. Choose to start Sound Power in "Connection to hardware" or in "Office mode".

===Updating the Software version===
'''Uninstall the previous version of Sound Power''' installed on the PC: Insert the CD in the appropriate driver and wait for the Autorun program (or run the "setup.exe" program from the CD). The following window is displayed:

[[Image:SOUND_POWER_15.png|framed|none]]

'''Click''' on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_16.png|framed|none]]

Choose to remove the current version.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_17.png|framed|none]]

Confirm by clicking on "Remove".

Wait until the following window is displayed:

[[Image:SOUND_POWER_18.png|framed|none]]

Click on Finish

1. '''Start the installation of the new version'''. Please follow the procedure described from the chapter "Installation of the Sound Power Solution".

----

===Troubleshooting===

''Sound Power may not start. In this case, one of the following error messages is returned:''

'''« File Sound Power.ini not found ! »'''

{|border="0" cellspacing="2" width="100%"

|''Run the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''

|}
'''« File Sound Power.ini not valid ! »'''

{|border="0" cellspacing="2" width="100%"
|''Run the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''

|}

'''« Couldn<nowiki>'</nowiki>t start NVGate ! »'''

* ''Check the path of "NVGate.exe" in the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''
'''« Connection to NVGate has failed ! »'''

1. If the NVGate location is = Local:

* ''Check that NVGate is running. If not, escape from Sound Power and run it ''again''.
* ''Check that NVGate can start on its side.''

2. If NVGate location is = Remote:

* ''Check that NVGate is running on the remote PC''
* ''Check that the IP address of the remote PC is correct in the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''
'''« You don<nowiki>'</nowiki>t have the permission to use OROS Sound Power ! »'''

* ''Ensure that you are using a dongle configurated for Sound Power''
* ''Contact your OROS Agent''
'''« Sound Power project not found ! »'''

''CHECK THE PATH OF "NVGATE.EXE" IN THE SOUND POWER CONFIGURATION PROGRAM (MENU "START" <NOWIKI>></NOWIKI> "PROGRAMS" <NOWIKI>></NOWIKI> "NVSOLUTIONS" <NOWIKI>></NOWIKI> "SOUND POWER CONFIGURATION") AND VALIDATE (PRESS "OK") IN LOCAL. IF YOU ARE OPERATING SOUND POWER IN A REMOTE LOCATION, COPY THE "SOUND POWER" DIRECTORY FROM THE FOLDER OF INSTALLATION OF SOUND POWER INTO THE DEFAULT BASE OF''

Sound Power Install

2020-06-29T18:15:00Z

AmberSmith:

''The Sound Power Solution is meant to work in combination with its associated Analyzer software '''NVGATE'''''''®''''. In this way, the full power of the '''NVGATE'''''''® ''''platform and associated multi channel '''INSTRUMENT HARDWARE''' is made fully available for your one clear objective: measuring Sound Power.''

This "'''INSTALLATION GUIDE"''' will guide you through the installation of the Sound Power software and help you run it for the first time. It will explain in particular the way the installation should be done in parallel to NVGATE® and to the Instrument Hardware.

==First Check==
====Recommended PC configuration====

See [[PC Requirement]] page.

====Equipment required for the installation====
* OROS Sound Power V3.10.1 february 2020: https://orossas.sharepoint.com/:u:/g/support/EWgD6QwOyCxMoyBPOgW3PhwBCkV79kCfJvjVkC98sY-80g?e=bddyGG

* A dongle with NVGate that is OROS Sound Power authorized

==Installation==
===Installation of the NVGate software===
'''NVGate'''''' ''' '''must be installed''' on the PC before starting the installation of Sound Power.

To install NVGate, please refer to the "'''''OR3X/NVGate Installation Guide'''''".

Before starting the installation of Sound Power, make sure that NVGate is properly installed.

===Installation of the Sound Power Solution===
Ensure NVGate is installed and running on the PC before starting the installation of Sound Power.

The procedure of installation of Sound Power is the same for Windows 98, 2000 and XP.

For information, the following screenshots have been realized under Windows XP.

Insert the CD in the appropriate drive and wait for the Autorun program (or run the "setup.exe" program from the CD)

Wait until the following window is displayed:

[[Image:SOUND_POWER_04.png|framed|none]]

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_05.png|framed|none]]

Read the terms of the license agreement and select "I accept the terms in the license agreement" if you agree.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_06.png|framed|none]]

Enter the user name, the organization and choose to install the application for all users or only for you.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_07.png|framed|none]]

Select the location of the "Sound Power" folder. By default, OROS Sound Power is installed in:

C:\Program Files\OROS\NVSolutions\SoundPower.

Installing Sound Power in the NVGate directory (as it is by default) enables links between the Sound Power Online Help and the NVGate Online Help.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_08.png|framed|none]]

Choose the setup type. It is recommended to select "Complete".

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_09.png|framed|none]]

Click on "Install" to begin the installation.

Wait until the following window is displayed:

[[Image:SOUND_POWER_10.png|framed|none]]

Click on "Finish".

The following window is displayed:

[[Image:SOUND_POWER_11.png|framed|none]]

Indicate the location of NVGate.

If NVGate is installed on the same PC:

Choose "Local" and indicate the path for "NVGate.exe". By default, it is: "C:\ProgramFiles\OROS\OR3X".

If you are using NVGate from another PC:

Choose "Remote" and indicate the IP address of this second PC.

If you want to change the Sound Power configuration:

Open the "Start" menu, select "Programs", then "NVSolutions" and choose "Sound Power Configuration".

At this stage:

Plug the '''Dongle''' to use Sound Power in the '''Office Mode'''

Plug the '''Hardware''' to use Sound Power in the '''Connected Mode'''.

And then, run "Sound Power".

The following window is displayed:

[[Image:SOUND_POWER_12.png|framed|none]]

You can either create a new setup by choosing the Standard, the Surface type and the number of positions of your experiment or load a setup already created.

Click on "OK".

If NVGate has not been started previously, the following window is first displayed:

[[Image:SOUND_POWER_13.png|framed|none]]

Enter the first name and last name of the user and choose to set a password or not.

''Notice'''': The access level for the first user is necessary full.''

Then, the following window is displayed:

[[Image:SOUND_POWER_14.png|framed|none]]

If NVGate has already been started by itself before the selection of the running mode will be asked directly. Choose to start Sound Power in Connected to the hardware or in the office mode.

===Updating the Software version===
'''Uninstall the previous version of Sound Power''' installed on the PC: Insert the CD in the appropriate driver and wait for the Autorun program (or run the "setup.exe" program from the CD). The following window is displayed:

[[Image:SOUND_POWER_15.png|framed|none]]

'''Click''' on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_16.png|framed|none]]

Choose to remove the current version.

Click on "Next <nowiki>></nowiki>".

The following window is displayed:

[[Image:SOUND_POWER_17.png|framed|none]]

Confirm by clicking on "Remove".

Wait until the following window is displayed:

[[Image:SOUND_POWER_18.png|framed|none]]

Click on Finish

1. '''Start the installation of the new version'''. Please follow the procedure described from the chapter"Installation of the Sound Power Solution".

----

===Troubleshooting===

''Sound Power may not start.In this case, one of the following error messages is returned:''

'''« File Sound Power.ini not found ! »'''

{|border="0" cellspacing="2" width="100%"

|''Run the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''

|}
'''« File Sound Power.ini not valid ! »'''

{|border="0" cellspacing="2" width="100%"
|''Run the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''

|}

'''« Couldn<nowiki>'</nowiki>t start NVGate ! »'''

* ''Check the path of "NVGate.exe" in the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''
'''« Connection to NVGate has failed ! »'''

1. If NVGate location is = Local:

* ''Check that NVGate is running. If not, escape from Sound Power and run it ''''again''
* ''Check that NVGate can start on its side''

2. If NVGate location is = Remote:

* ''Check that NVGate is running on the remote PC''
* ''Check that the IP address of the remote PC is correct in the Sound Power configuration program (Menu "Start" <nowiki>></nowiki> "Programs" <nowiki>></nowiki> "NVSolutions" <nowiki>></nowiki> "Sound Power Configuration")''
'''« You don<nowiki>'</nowiki>t have the permission to use OROS Sound Power ! »'''

* ''Ensure that you are using a dongle configurated for Sound Power''
* ''Contact your OROS Agent''
'''« Sound Power project not found ! »'''

''CHECK THE PATH OF "NVGATE.EXE" IN THE SOUND POWER CONFIGURATION PROGRAM (MENU "START" <NOWIKI>></NOWIKI> "PROGRAMS" <NOWIKI>></NOWIKI> "NVSOLUTIONS" <NOWIKI>></NOWIKI> "SOUND POWER CONFIGURATION") AND VALIDATE (PRESS "OK") IN LOCAL. IF YOU ARE OPERATING SOUND POWER IN A REMOTE LOCATION, COPY THE "SOUND POWER" DIRECTORY FROM THE FOLDER OF INSTALLATION OF SOUND POWER INTO THE DEFAULT BASE OF''

RT60 Calculator

2020-06-29T18:10:19Z

AmberSmith:

[https://en.wikipedia.org/wiki/Reverberation Reverberation] in acoustics is the persistence of sound after a sound is produced. Reverberation, or reverb, is created when a sound or a signal is reflected causing a large number of reflections to build up and then decay as the sound is absorbed by the surfaces of objects in the space – which could include furniture, people, and air.

RT60 means <nowiki>'</nowiki>" Reverberation time - 60 dB". In other words, it means "how long a sound needs to decrease to 60 dB from it is initial energy level".

RT60 Measurement is used to define the Reverberation Time of a room in order to qualify this one.

[[Image:RT60_05.png|thumb|none|340px]]

==Introduction==
===Download===
Please contact [https://www.oros.com/find-us/ your local distributor] for access to the RT60 package.
===Package composition===
* NVGate project folder
* NVGate project
* OROS Calculator Folder
* RT60 Calculator.xlsm

==RT60 Measurement==

===Principle===
The principle is to measure the RT60 for each third octave frequency band. Then, all these bands are combined to determine a global reverberation time.

===Configuration===
According to this method, the following plug-ins of NVGate are used:

* OCT plug-in: to have the energy level by frequency band
* Waterfall plug-in: to analyze the OCT profile
* Noise generator: you can use an OROS OR3X analyzer to generate a noise
The corresponding NVGate project is already done. You can find it in the folder "RT60 NVGate Project". An example is also available below.

Notes: This program is working with NVGate V11.00 and later.
===Calculation===
After the measurement, import the data into the excel sheet. This document combines each frequency band and automatically calculates the reverberation time.

Please find the mentioned excel sheet in the folder "OROS RT60 Calculator". A tutorial is also available below.

----

==How to use RT60 NVGate model==
===Video Full tutorial===
<Youtube>https://www.youtube.com/watch?v=SCjREgHa20U</Youtube>
===Import the NVGate model into NVGate and perform the measurement===
1- Copy the entire folder "RT60 third octave" and paste it into your NVGate model database. By default, the NVGate model database is located in: "C:\OROS\NVGate data\Workbook Library\User".

2- Create a new project in NVGate.

[[File:project_rt.png]]

3- Then, select the "RT60 Model" in the next window and click on "load".

[[File:model_rt60.png]]

4- Adjust the threshold of the EDGE 1. This event should start the waterfall.

5- Your measurement is ready; just start the measurement and stop your sound source just after.

6- Your measurement is saved and located in the project manager. There, right click on the result of your measurement and select export.

[[File:project_export.png]]

7- Finally, export your result in a .txt format and open the "OROS RT60 Calculator.xlsm".

==How to use the OROS RT60 Calculator==
===Import file===
1) In the tab "pos 1" of the Excel file "OROS RT60 Calculator", click on the "Import data position 1" button.

[[Image:RT60_06.png|thumb|none|264px]]

2) Then, select the .txt file to import.

3) Import the data of the other positions (using the same procedure).

4) In the "average level" tab, the average level of all the imported positions is automatically calculated. It is possible to deactivate a position in the settings tab:

[[Image:RT60_07.png|thumb|none|279px]]

''In this example, the average level – and RT60 - will be calculated for positions 1, 2 and 3.''

5) In the "overview" tab, you can have a look at the decay curve of each third octave band and check the regression line.

[[Image:RT60_08.png|thumb|none|543px]]

''Part of the "overview" tab''

6) If needed, it is possible to change the calculation mode (T20 / T30 / Manual) to see which one better fits the curve. For that, go to the tab corresponding to the third octave band frequency.

[[Image:RT60_09.png|thumb|none|320px]]

7) The report includes the RT60 values and the calculation mode (T20 / T30 / Manual ("m")) for each third octave band, a graph and the global RT60 value. You can change the frequency band for the global RT60 computation (from… to…).

[[Image:RT60_10.png|thumb|none|304px]]

===Tips===
1) In the settings tab, you can change the calculation mode for all third octave bands:

[[Image:RT60_11.png|thumb|none|311px]]

2) In the settings tab, you can choose the bounds of the graphs and click on "set" to change automatically the axis of all graphs.

[[Image:RT60_12.png|thumb|none|494px]]

3) To not display the 50, 63 and 80 Hz values in the report, adjust the following fields in the settings tab:

[[Image:RT60_13.png|thumb|none|270px]]

Monitoring Solution

2020-06-18T20:02:22Z

AmberSmith:

==Introduction Header==
The OROS Monitoring solution is a tool dedicated to advanced triggering based on analysis results. You can do a trigger on any scalar value of NVGate. It includes a "watch dog" feature to keep NVGate and the analyzer running over a long period of time.

It can manage the automatic recovery of the Monitoring module, restart the analysis, NVGate, as well as the analyzer (using the additional USB/RJ11 autonomy box).

This module routinely identifies and evaluates user selected parameters and provides a panel of conditional actions to complete. The main features are:

* Ensure the analyzer is running.
* Ensure NVGate is running.
* Trigger actions (macro, exe, start a plug in, etc.) depending on conditional measured scalar values.

This module is dedicated for mid to long term monitoring in order to have an autonomous recording and analysis.


[[Image:Manual_Monitoring_OROS_01.png|framed|none]]

''Figure 1 - Monitoring Application Interface''

----

==Operating the Monitoring Solution==
===First Steps===
From NVGate, setup a project dedicated to monitoring and display the scalar values you may want to track on your current layout. Then, save the project and launch the Monitoring application. It will recognize some parameters and display your scalars in the current layout.

First, verify the following parameters are correct in the parameters panel: NVGate folder location, analyzer IP and COM port. Then, configure the condition you want for each scalar and linked actions. To do that, select an operator to compare the measured value to the target value (which must also be defined). For example, if you select "<nowiki>></nowiki>" and "2" for an acceleration scalar, when the value is larger than 2 the selected action will be triggered.

Finally, close the Monitoring Application, close NVGate, shutdown your analyzer, and then launch the Monitoring Application. If everything starts by itself, Monitoring was setup properly and monitoring has initiated.

===User Interface===
The user interface main window is as below. It is built with 3 main sections: Parameters, Monitoring Panel, and the Logbook.

[[Image:Manual_Monitoring_OROS_03.png|framed|none]]

''Figure 3 - Main user interface window''

===Parameters===
The interface panel must be checked to ensure the proper functioning of the monitoring application:

[[Image:Manual_Monitoring_OROS_04.png|framed|none]]

''Figure 4 - Parameters window''

* '''"Keep NVGate/Analyzer awake":''' Ensure NVGate is running and the analyzer is on.
* '''NVGate location''': NVGate folder location (containing NVGate.exe).
* '''Analyzer IP''': If the IP is not defined correctly, the application will not be able to check if the unit is on and therefore will not be able to start up or shutdown the Analyzer.
* '''Analyzer Type''': Analyzer type should be detected automatically. This is necessary to ensure the Monitoring Box functions properly.
* '''Monitoring Box COM Port''': Select the Monitoring Box COM Port. This is required to start up/shutdown the analyzer. If the Monitoring Box is not connected, or the correct drivers are not installed, the list will be empty.
* '''AutoRun Monitoring''': Launch monitoring alongside NVGate.
* '''AutoRun NVGate''': Ensure NVGate is running (TDA:TemporalDataAuthority) at all times.
* '''Start with (Project Name)''': Defines the project to be loaded in NVGate. If NVGate crashes, this project will automatically be loaded and monitored.
===Monitoring Panel===

[[Image:Manual_Monitoring_OROS_05.png|framed|none]]

''Figure 5 – The Monitoring panel window''

The columns have the following content:

* '''Window: '''Selected scalar window<nowiki>'</nowiki>s name.
* '''Module: '''Selected scalar module<nowiki>'</nowiki>s name.
* '''Process: '''Selected scalar process<nowiki>'</nowiki> name.
* '''Channel: '''Selected scalar channel<nowiki>'</nowiki>s number.
* '''Input Name: '''Selected scalar input<nowiki>'</nowiki>s name.
* '''Values: '''Selected scalar values (SI).
* '''Units: '''Selected scalar units.
* '''Operator: '''Condition to be satisfied for actions:
* '''<nowiki>></nowiki>: '''If the measured value is greater than the target value, then action.
* '''<nowiki><</nowiki>: '''If the measured value is less than the target value, then action.
* '''Cross: '''If the measured value crosses the target value, then action.
* '''Target Values: '''Condition to be satisfied for actions.
* '''Action: '''What do you want to do when the condition is satisfied:
* Activate / Deactivate outputs.
* Run / Stop analyzer.
* Trigger a User Event.
* Launch a macro (coming from NVGate).
* '''Hysteresis: '''Time hysteresis is the delay between each action coming from this scalar (e.g.: 10s means the action cannot be triggered during the 10s following a triggered action.)
* '''Led: '''Green if the condition is not satisfied (no action). Red if the condition is satisfied (action).

==Installation==
===Package Contents===
* The Monitoring Application: ''MonitoringApplication.exe.''
* Drivers for the USB/RJ11 reset box.

'''Install NVGate'''

Install NVGate using "Setup.exe" provided from the NVGate CD. Then, follow the steps until the installation is finalized.

'''Install Monitoring solution'''

The Monitoring solution can be installed using "Setup_Monitoring_X.X.exe". It will create a shortcut on your desktop, but also in the NVGate "Links" folder in order to launch it directly from NVGate.

'''Install Monitoring Reset Box Drivers (if required)'''

Monitoring reset box drivers should be installed automatically during Monitoring installation.

But if it<nowiki>'</nowiki>s needed, you can install it manually:

From the device manager panel:

* Right click on prolific device into "Ports (Com)" category, then "update driver"
* Choose "Browse my computer to driver software"
* The choose "Let me pick from a list of available drivers on my computer"
* Click "Have Disk..."
* Select ser2pl.inf in the "Monitoring\drivers" directory

[[file:Manual_Monitoring_OROS_06.png|1000px|none]]

===Recommended Parameter for Full Autonomy on PC ===

In order to ensure proper monitoring, it is necessary that both the PC and Monitoring Application are able to be automatically restarted. To do that, create a shortcut of the Monitoring application into the windows startup directory (C:\Users\USERNAME\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup). The monitoring application will take care of restarting NVGate if it is not already running.

===Autonomy Box Installation===
The reset box must be plugged into the analyzer<nowiki>'</nowiki>s RJ11 port and the USB slot on the computer. Provided drivers must also be installed.

[[Image:Manual_Monitoring_OROS_02.jpg|framed|none]]

''Figure 2 - Autonomy box installation''

===PC and Windows Configuration===
In order to guarantee a full autonomy, the computer must be configured to reboot in case of a power failure. We advise that the following PC parameters should be set as shown below:

'''PC automatic restart due to power failure:'''

To account for a potential power failure at the analyzers location the following settings should be programmed on the PC to automatically switch on the PC once power is restored.

Access the PC<nowiki>'</nowiki>s BIOS:

* Restart PC, press F12 (on most PC<nowiki>'</nowiki>s) to access the PC<nowiki>'</nowiki>s Bios.
* Check the Bios parameters.
On power management check the option "power on AC".

Monitoring Solution

2020-06-18T17:30:53Z

AmberSmith:

==Introduction Header==
The OROS Monitoring solution is a tool dedicated to advanced triggering based on analysis results. You can do a trigger on any scalar value of NVGate. It includes a "watch dog" feature to keep NVGate and the analyzer running over a long period of time.

It can manage the automatic recovery of the Monitoring module, restart the analysis, NVGate, as well as the analyzer (using the additional USB/RJ11 autonomy box).

This module routinely identifies and evaluates user selected parameters and provides a panel of conditional actions to complete. The main features are:

* Ensure the analyzer is running.
* Ensure NVGate is running.
* Trigger actions (macro, exe, start a plug in, etc.) depending on conditional measured scalar values.

This module is dedicated for mid to long term monitoring in order to have an autonomous recording and analysis.


[[Image:Manual_Monitoring_OROS_01.png|framed|none]]

''Figure 1 - Monitoring Application Interface''

----

==Operating the Monitoring Solution==
===First Steps===
From NVGate, setup a project dedicated to monitoring and display the scalar values you may want to track on your current layout. Then, save the project and launch the Monitoring application. It will recognize some parameters and display your scalars in the current layout.

First, verify the following parameters are correct in the parameters panel: NVGate folder location, analyzer IP and COM port. Then, configure the condition you want for each scalar and linked actions. To do that, select an operator to compare the measured value to the target value (which must also be defined). For example, if you select "<nowiki>></nowiki>" and "2" for an acceleration scalar, when the value is larger than 2 the selected action will be triggered.

Finally, close the Monitoring Application, close NVGate, shutdown your analyzer, and then launch the Monitoring Application. If everything starts by itself, Monitoring was setup properly and monitoring has initiated.

===User Interface===
The user interface main window is as below. It is built with 3 main sections: Parameters, Monitoring Panel, and the Logbook.

[[Image:Manual_Monitoring_OROS_03.png|framed|none]]

''Figure 3 - Main user interface window''

===Parameters===
The interface panel must be checked to ensure the proper functioning of the monitoring application:

[[Image:Manual_Monitoring_OROS_04.png|framed|none]]

''Figure 4 - Parameters window''

* '''"Keep NVGate/Analyzer awake":''' Ensure NVGate is running and the analyzer is on.
* '''NVGate location''': NVGate folder location (containing NVGate.exe).
* '''Analyzer IP''': If the IP is not defined correctly, the application will not be able to check if the unit is on and therefore will not be able to start up or shutdown the Analyzer.
* '''Analyzer Type''': Analyzer type should be detected automatically. This is necessary to ensure the Monitoring Box functions properly.
* '''Monitoring Box COM Port''': Select the Monitoring Box COM Port. This is required to start up/shutdown the analyzer. If the Monitoring Box is not connected, or the correct drivers are not installed, the list will be empty.
* '''AutoRun Monitoring''': Launch monitoring alongside NVGate.
* '''AutoRun NVGate''': Ensure NVGate is running (TDA:TemporalDataAuthority) at all times.
* '''Start with (Project Name)''': Defines the project to be loaded in NVGate. If NVGate crashes, this project will automatically be loaded and monitored.
===Monitoring Panel===

[[Image:Manual_Monitoring_OROS_05.png|framed|none]]

''Figure 5 – The Monitoring panel window''

The columns have the following content:

* '''Window: '''Selected scalar window<nowiki>'</nowiki>s name.
* '''Module: '''Selected scalar module<nowiki>'</nowiki>s name.
* '''Process: '''Selected scalar process<nowiki>'</nowiki> name.
* '''Channel: '''Selected scalar channel<nowiki>'</nowiki>s number.
* '''Input Name: '''Selected scalar input<nowiki>'</nowiki>s name.
* '''Values: '''Selected scalar values (SI).
* '''Units: '''Selected scalar units.
* '''Operator: '''Condition to be satisfied for actions:
* '''<nowiki>></nowiki>: '''If the measured value is greater than the target value, then action.
* '''<nowiki><</nowiki>: '''If the measured value is less than the target value, then action.
* '''Cross: '''If the measured value crosses the target value, then action.
* '''Target Values: '''Condition to be satisfied for actions.
* '''Action: '''What do you want to do when the condition is satisfied:
* Activate / Deactivate outputs.
* Run / Stop analyzer.
* Trigger a User Event.
* Launch a macro (coming from NVGate).
* '''Hysteresis: '''Time hysteresis is the delay between each action coming from this scalar (e.g.: 10s means the action cannot be triggered during the 10s following a triggered action.)
* '''Led: '''Green if the condition is not satisfied (no action). Red if the condition is satisfied (action).

==Installation==
===Package contents===
* The Monitoring Application: ''MonitoringApplication.exe.''
* Drivers for the USB/RJ11 reset box.

*'''Install NVGate'''

Install NVGate using "Setup.exe" provided from the NVGate CD. Then, follow the steps until the installation is finalized.

*'''Install Monitoring solution'''

The Monitoring solution can be installed using "Setup_Monitoring_X.X.exe". It will create a shortcut on desktop, but also into NVGate "Links" folder in order to launch it directly from NVGate.

*'''Install monitoring reset box drivers (if required)'''

Monitoring reset box drivers should be installed automatically during Monitoring installation.

But if it<nowiki>'</nowiki>s needed, you can install it manually:

From device manager panel:

* Right click on prolific device into "Ports (Com)" category, then "update driver"
* Browse my computer to driver software
* Let me pick from a list of available drivers on my computer
* Have disk…
* Select ser2pl.inf into "Monitoring\drivers" directory

[[file:Manual_Monitoring_OROS_06.png|1000px|none]]

===recommended parameter for full autonomy on PC ===

In order to ensure proper monitoring, it is necessary that both the PC and Monitoring Application are able to be automatically restarted. To do that, create a shortcut of the Monitoring application into the windows startup directory (C:\Users\USERNAME\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup). The monitoring application will take care of restarting NVGate if it is not already running.

===Autonomy box installation===
The reset box must be plugged into the analyzer<nowiki>'</nowiki>s RJ11 port and the USB slot on the computer. Provided drivers must also be installed.

[[Image:Manual_Monitoring_OROS_02.jpg|framed|none]]

''Figure 2 - Autonomy box installation''

===PC and windows configuration===
In order to guarantee a full autonomy, the computer must be configured to reboot in case of a power failure. We advise the following PC parameters be set as below:

'''PC automatic restart due to power failure:'''

To account for a potential power failure at the analyzers location the following settings should be programmed on the PC to automatically switch on the PC once power is restored.

Access the PC<nowiki>'</nowiki>s BIOS:

* Restart PC, press F12 (on most PC<nowiki>'</nowiki>s) to access the PC<nowiki>'</nowiki>s Bios.
* Check the Bios parameters.
On power management check the option "power on AC".

NVGo

2020-06-18T16:59:23Z

AmberSmith:

==NVGo==
NVGo is the MODS monitoring software for android devices. This app is designed to:

* Manage ''Templates'' for OR10 front-end and record setup
* Adjust the front-end and recorder settings
* Continuously monitor the signals in different domains (level, time and spectral)
* Start & stop recording
* Add properties and comments to records
* Manage records in OR10 memory
===Installation===
1. Register on [http://www.myoros.com/ www.myOROS.com].

2. From the ''Software'' section, select ''NVGo'' -<nowiki>></nowiki> ''Latest software''.

3. Download the latest NVGo Android Package Kit (.APK) on your Tablet or smartphone.

4. On your Android device open the downloaded section and select the NVGo .apk file, then choose install.

5. Authorize the installation of unknown sources for this one downlaod, as OROS does not use Google play store for its software broadcasts.

===Connection to OR10===
1. Start NVGo from the Android device.

[[Image:MODS_46.png|framed|none]]

2. Power on the OR10 hardware.

3. Wait for power-on to complete, until you get the main menu on the OR10 screen.

4. Press the "Wi-Fi" button on NVGo. The Android Wi-Fi menu is displayed.

[[Image:MODS_47.png|framed|none]]

5. Connect to the OR10.

6. Press Android back () button to return to NVGo.

[[Image:MODS_48.png|framed|none]]

Refresh the instrument list. When your OR10 appears showing "Ready", click on it to start NVGo with this instrument.

----

Main screen :

[[Image:MODS_49.png|framed|none]]

----

====LiveView====
''LiveView ''screen shows the spectra and trigger blocks of the 2 highlighted inputs of the left column.

[[Image:MODS_50.png|framed|none]]

Displayed inputs are changed by swiping the graph up/down. It is also possible to select the displayed inputs by pressing the selected input from the left column.

FFT settings allows for adjusting averaging and resolution. The
Y scale may be set to linear or log. This preference is saved in the Android device.

----

====Signal====
''Signal ''shows the raw data envelope of the 2 highlighted inputs of the left column.

[[Image:MODS_51.png|framed|none]]

Displayed inputs are changed by swiping the graph up or down. It is also possible to select the displayed inputs by pressing the selected input from the left column.

Y scale is continuously adjusted to input ranges. When the 2 active inputs show the same units, both Y scales are identical.

====Levels====
''Levels ''shows the RMS and Peak levels of all dynamic inputs together.

[[Image:MODS_52.png|framed|none]]

====Playback====
Press the headphone icon on bottom right of the main screen to activate the playback. The 2 active inputs (blue background on the ''Signal'' and ''LiveView'' screens) are replayed on the OR10 headphone plug. The volume is automatically adjusted.
Caution, the playback volume is dependent on the used headphone impedance. Signal amplitudes close to the range peak may generate high volume with low impedance headphone. Usage of very low impedance below 60 Ohms is not recommended. The stereo allocation of the played signals may be inverted by pressing the headphone button until the 2 background colors are inverted.

===Setting up the OR10===
====Loading a Template====
The ''Templates'' are generated and added to the OR10 memory with NVGate (see NVGate Template generation §). They are used in the same way NVGate ''Models'' is in order to setup the front-end with predefined settings. The ''Template ''properties and description will be saved in the ''Measurements ''made with it.

Press the central (''Setup'') field of the top ribbon to open the ''Template'' selection screen.
[[Image:MODS_54.png|framed|none]]

====Adjust the Front-End====
Input settings may be adjusted manually. Press the left (''Settings'') BNC button of the top ribbon to open the ''Front-End settings'' screen.
[[Image:MODS_55.png|framed|none]]

====Adjust the Sampling Frequency====
The sampling frequency is always displayed in the main screen. Simply select the desired sampling rate from the Top Ribbon drop down menu.

[[Image:MODS_56.png|framed|none]]

This menu is not available when the OR10 is recording.

====Adjust the Recorder====
The recorder mode and duration may be adjusted. On the left (''in Settings''), press the recorder button on the Top Ribbon to open the ''Recorder Settings'' screen. This menu is not available when the OR10 is recording.

[[Image:MODS_57.png|framed|none]]

You can choose between fixed duration ''Start to Time'' and manually controlled ''Start to Stop'' for recorder modes. 
[[Image:MODS_58.png|framed|none]]

[[Image:MODS_59.png|framed|none]]

For ''Start to Time'', the duration should be updated by editing the field or using the <nowiki>+</nowiki>/- buttons.

===Make a Recording===
====Start Recording====
When the OR10 setup is done, the system is ready to start acquiring and saving the input data. To start the recording, press the bottom left ''Run'' button or press the "REC" button on the OR10.

[[Image:MODS_60.png|framed|none]]

To stop the recording, press ''Stop ''on the bottom left or press the "REC" button on the OR10. In ''Start to Time'' mode, the recording will stop automatically when the duration time is reached.

====Save & Inform Recorded Data====
When the record is finished, the save screen is shown.

[[Image:MODS_61.png|framed|none]]

Recordings are saved with the predefined base name of ''Template''. A combination of 3 numbers and a letter is added to manage the multi-acquisitions:

* Letter is incremented while using the same ''Template'' for multiple acquisitions (called RUNs)
* Number is incremented and letter reset when ''Template ''is changed.
* Number and letter are automatically incremented to avoid overwriting existing files in the OR10 memory.
In that way, each RUN of a measurement type will be called: ''BaseName_102A, BaseName_102B, BaseName_102C'', etc…

All the properties with contents are saved with the recorded data. Saved properties will be associated to the ''Measurement ''when records are imported into NVGate.

====Check OR10 Memory Content====
You may browse the OR10 recorded data from NVGo. Press on the Capacity field (DAQ) which is in the Top Ribbon on the right.

[[Image:MODS_62.png|framed|none]]

[[Image:MODS_63.png|framed|none]]

The Record list screen is displayed.

NVGate Diesel Engine Vibration Solution: EngineDiag

2020-06-12T21:41:02Z

AmberSmith:

[https://en.wikipedia.org/wiki/Reciprocating_motion Reciprocating machines] generate specific vibration signatures. Dedicated tools associating the machine mechanical characteristics and high performance analysis capabilities are necessary to understand the dynamic behavior of these machines.
With EngineDiag, OROS takes on the challenge to offer tool integration in one product in order to enhance test efficiency.

==Installation==

EngineDiag is a module integrated in [[NVGate]].

Follow the steps described in the NVGate User<nowiki>'</nowiki>s manual to install it correctly.

For the Angle-Frequency option, it<nowiki>'</nowiki>s necessary to install a complementary application: <nowiki>'</nowiki>SetupAngleFrequency.exe<nowiki>'</nowiki>.

Double click on
[[Image:EngineDiag_06.png]]
and the following window will appear.

[[Image:EngineDiag_07.png|framed|none]]

Click "Next", and the following window will appear.

[[Image:EngineDiag_08.png|framed|none]]

Select the destination folder and click "Install".

Note: if you change the default destination folder, be careful to install the Angle-Frequency module in the same directory as NVGate like the example below:

[[Image:EngineDiag_09.png|framed|none]]

When the installation is completed, click "Close".

==Environment Configuration==

With the EngineDiag module, a new ribbon is available in NVGate. EngineDiag allows you to access to NVGate through an interface, which is dedicated to the engines, and more generally to the reciprocating machines.

[[Image:EngineDiag_10.png|framed|none]]

===Properties===

To simplify data saving, history creation and data search, it is possible and recommended to associate metadata to each measurement.

One can determine two types of metadata:

* Properties related to a measurement campaign
* Properties related to each measurement
Properties are defined by default in NVGate but the list of properties can be modified according to the user's need.

The list of properties is available in the Home ribbon by clicking on Measurement properties.

[[Image:EngineDiag_11.gif|framed|none]]

[[Image:EngineDiag_12.png|framed|none]]

This window shows all the properties used.

For each of them one defines two fields:

* '''Apply to''': indicate where the property will appear.
* Apply to measurement: the property will appear in the save measurement only

[[Image:EngineDiag_13.png|framed|none]]

* Apply to Operation: the property will appear in the operation window and in the save measurement window. The user can pre fill in some of values in the window Operation available in the Engine ribbon.

[[Image:EngineDiag_14.png|framed|none]]

* Apply to nothing: the property will not appear.

* '''Suggest'''
* Empty : the property is empty by default
* Same as previous: by default the property keep the last value entered by the user.
* Same as today: the property keeps the same value during one day. The day after the value is reset to empty.
By selecting show all in this window, all the properties, even those that are not used anymore, are displayed.

[[Image:EngineDiag_15.png|framed|none]]

====Operation====
These properties related to a measurement campaign are generally related to several measurements done on the same day and on the same installation. Instead of writing this information for each measurement, it<nowiki>'</nowiki>s possible to define the environment once before stating the measurement.

This information can be defined in the operation window available by clicking on the button
[[Image:EngineDiag_16.png]]
.

Below are the properties by default:

[[Image:EngineDiag_17.png|framed|none]]

The properties can be defined by what is directly shown in the following example:

[[Image:EngineDiag_18.png|framed|none]]

At this stage, new properties can be added if needed by clicking on "Add new" in this window

[[Image:EngineDiag_19.png|framed|none]]

Select "OK".

All these properties will be added to each measurement that is done on this day.

====Measurement====
In the "Save Measurement" window, all the activated properties are displayed.

The properties are pre-filled in the operation window and appear with the value defined by the user in the operation window.

[[Image:EngineDiag_20.png|framed|none]]

==Engine Configuration==

One of the objectives of the EngineDiag module is to integrate, in NVGate, the physical data related to the engine under test in order to have all this information during the analysis.

The design and the kinematic information can be described by clicking on the button Engine.

[[Image:EngineDiag_21.gif|framed|none]]

The following window is displayed.

[[Image:EngineDiag_22.png|framed|none]]

From this window a complete Engine model can be described.

An Engine model contains the:

* Engine designation
* Engine settings
* Timing information
* Instrumentation
* Type of analysis applied to this engine
This information can be saved in an independent file .engine, in the NVGate projects and in the measurements.

===Engine===
From this first panel, several actions are available:

* New: create a new Engine model
By clicking on "new", a default engine model is loaded and the "settings" panel is automatically displayed.

Here, some modifications can be done.

* Load: Load an existing engine model
By clicking on "Load", an existing engine model can be loaded by selecting a file .engine.

* Remove: Remove the current engine model
* Save as: Save the current engine model to a file
This panel gives also the model name defined in the settings panel and all the comments written by the user. The field "comments" is saved in the engine model.

===Settings===
The settings panel allows you to describe the engine characteristics.

[[Image:EngineDiag_23.png|framed|none]]

The 3 fields: Nominal power, rated speed and cylinder bank angle are here for more information. The results are not influenced by these values.

The other settings will influence the results.

* Cylinder configuration: Vee or In Line
* Engine cycle: 2 strokes or 4 strokes
* Cylinders number: indicate the cylinders number
* Rotating Direction: Clockwise or counterclockwise
With this information, a schematic picture is automatically drawn. The cylinder's names can be modified by clicking directly on them.

On this picture, the small numbers in red represent the firing order. This order can be modified in the panel below the picture.

===Timing===
The timing information corresponds to the machine kinematics. The cycle of each reciprocating machine is divided in to several phases. These phases are separated by kinematic events. The figure below shows the typical cycle of a 4-stroke diesel engine with the different phases:
[[File:Engine_diag3.png|framed|none]]
The duration of each phase is defined by the valves opening and closing. The position of these events is given in angle relative to the Top Dead Center (TDC) where the piston is at top of the cylinder or Bottom Dead Center (BDC) where the piston is at the bottom of the cylinder.
This information is generally contained in the timing diagram provided by the engine manufacturer.
EngineDiag supports the ability to enter the timing diagram information to be used in the analysis. 

The timing panel allows you to describe the timing information generally provided by the engine manufacturer.

[[Image:EngineDiag_24.png|framed|none]]

* The events table
The events table allows you to define the kinematic events (Intake opening, exhaust opening,…) and position them in relation to the events Top Dead Center (TDC) and Bottom Dead Center (BDC).

An event is defined by two things:

* an angle from the TDC or BDC,
* its position in the engine cycle.
This information is important for four-stroke engines. It<nowiki>'</nowiki>s necessary to know if the event appears in the first or in the second crankshaft revolution.
Every modification done in the events table is automatically reported on the two graphs displayed here. At the top, a typical timing diagram and at the bottom the linear engine cycle representation.

A new event can be added by clicking on the
[[Image:EngineDiag_25.png]]
below the events table.
.

* The phases table
From the events described in the events table, the different phases of the engine cycle can be defined. Each phase is defined by its start and stop event as well as a color. The settings can be modified by double clicking on the concerned setting.

A new phase can be added by clicking on the
[[Image:EngineDiag_27.png]]
below the phases table. The selected phase can be removed by clicking on the
[[Image:EngineDiag_28.png]]
.

* Tachometer reference
The tachometer reference is the event synchronized to the tachometer that will be used for the synchronous analysis.

In the example below, the tachometer reference is TDC A1 because the pulse is synchronized with this event.

[[Image:EngineDiag_29.png|framed|none]]

===Instrumentation===
The objective here is to describe the instrumentation installed on the engine under test to keep it in memory.

====Cylinders instrumentation====

This panel displays the instrumentation installed on the cylinders.

For each cylinder, one can define:

* Analyzer input,
* Label,
* Type of transducer by using the transducer database.
The sensitivity of the selected transducer is automatically displayed.

[[Image:EngineDiag_30.png|framed|none]]

Several transducers can be installed on the same cylinder. You can define the maximum number of inputs per cylinder. See the example below with 3 inputs:

[[Image:EngineDiag_31.png|framed|none]]

====Other instrumentation====
In addition to the cylinder instrumentation, others transducers can be installed on the machine.

[[Image:EngineDiag_32.png|framed|none]]

Several groups of transducers can be defined, which are often associated to a machine part: bearing, absorber...

Double click on "New part" to define the part name and click on the
[[Image:EngineDiag_33.png]]
to add a new part.

Several transducers can be associated to each part. By selecting a part, the associated transducers are automatically displayed.

[[Image:EngineDiag_34.png|framed|none]]

By selecting all the parts simultaneously, all the transducers installed on the engine are displayed.

[[Image:EngineDiag_35.png|framed|none]]

====Analysis====

The Analysis panel allows you to select the type of analysis that will be done. This information will be used to help the user to configure NVGate.

[[Image:EngineDiag_36.png|framed|none]]

* The recorder use the NVGate recorder
* The synchronous analysis uses the Synchronous order plug-in
* The asynchronous analysis uses the FFT plug-in

When the engine model is defined, do not forget to save it in the Engine panel with the "Save as" button.

==NVGate configuration==

===The Advisor===
From the parameters defined in the engine model, the Advisor will help the user to configure NVGate correctly.

The advisor is a helpful tool, it<nowiki>'</nowiki>s not compulsory to use it for the configuration.

[[Image:EngineDiag_37.png|framed|none]]

The advisor gives a status about the software configuration depending on the Engine model.

Using different colors, the advisor indicates the current status of the NVGate configuration

{|border="2" cellspacing="0" cellpadding="4" width="61%"
|align = "center"|
[[Image:EngineDiag_38.png|framed|none]]

|The measurement will not be done correctly. The configuration should be adjusted.

|-
|align = "center"|
[[Image:EngineDiag_39.png|framed|none]]

|Regarding the type of analysis selected, some settings are missing in order to obtain all the results.

|-
|align = "center"|
[[Image:EngineDiag_40.png|framed|none]]

|Regarding the type of analysis selected, the NVGate configuration is correct. The user can choose which results he wants to display and start the acquisition.

|}

By clicking on the Advisor button, all the errors will be displayed with title, explanation and criticality, as shown below.

[[Image:EngineDiag_41.png]]

For each error, the advisor indicates if it can be solved automatically
[[Image:EngineDiag_42.png]]
or manually
[[Image:EngineDiag_43.png]]
.

* Click on [[Image:EngineDiag_44.png]] and it will automatically set up NVGate to solve the error.
* Click on [[Image:EngineDiag_45.png]] and it will open the window where the user has to do an action to solve the error.
To save time, the [[Image:EngineDiag_46.png]] button
allows you to fix all the displayed errors that can be solved automatically.

[[Image:EngineDiag_47.png|framed|none]]

The "Fix Selected" button,
[[Image:EngineDiag_48.png]]
, solves the selected errors in the list.

The advisor gives only advices. The user can read the information and decide to ignore some of the errors. Each error can be hidden by clicking on the button shown below.

[[Image:EngineDiag_49.png|framed|none]]

The "Hide Selected" function,
[[Image:EngineDiag_50.png]]
, allows you to hide several errors at the same time by selecting them.

All the hidden functions are not deleted. At any time the user can display all of them by clicking on the button
[[Image:EngineDiag_51.png]]
.

The advisor displays the important rules to make a correct measurement but the NVGate configuration is not restricted to the advice shown here.

All the capabilities of NVGate are available. The user can complete this first configuration to perfectly adapt it to its application.

==The Dedicated Results==

With the Engine Module, several dedicated results are available.

These results can be displayed through the "Add/Remove window" available in the ribbon "Display/Graphs".

[[Image:EngineDiag_52.png|framed|none]]

And also in the ribbon "Engine".

[[Image:EngineDiag_53.png|framed|none]]

===Time signal - The Triggered Block Engine===

The triggered block engine is a new result of the Sync. order plug-in associating the engine information to the standard synchronous triggered blocks.

Select the results as below:

[[Image:EngineDiag_54.png|framed|none]]

The following window will be displayed:

[[Image:EngineDiag_55.png|framed|none]]

Specific features:

* The results are displayed automatically in the firing order defined in the window Engine/Settings

[[Image:EngineDiag_56.png|framed|none]]

The cycle overview (defined in Engine/Timing) of each displayed cylinders are shown at the bottom of the window. The cycle overview of each cylinders is determined by:
* The tachometer reference
* The firing order
* The timing diagram

2 cursors displayed on the signals and the cycle overview allow you to identify the kinematic events on the signals.
*
[[Image:EngineDiag_57.png|framed|none]]

On the example above the cursors are positioned at the beginning of the 2 main events of the signal. Looking at the cycle overview, one can note that:

* The first cursor corresponds to the end of the exhaust phase, i.e. the exhaust valve closing
* The second cursor corresponds to the end of the intake phase, i.e. the intake valve closing.
* By default, only one cycle is displayed in this window, 360° (crankshaft angle) for a 2-strokes engine or 720 ° (crankshaft angle) for a 4-strokes engine. More cycles can be displayed. The number can be defined in the Engine Ribbon.

[[Image:EngineDiag_58.png|framed|none]]

The max number of cycles that can be displayed depends on the order resolution defined in the Synch order plug-in.

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center"|Order resolution
|align = "center"|Max number of cycles for 2-strokes engine
|align = "center"|Max number of cycles for 4-strokes engine

|-
|align = "center"|1
|align = "center"|1
|align = "center"|0

|-
|align = "center"|½
|align = "center"|2
|align = "center"|1

|-
|align = "center"|¼
|align = "center"|4
|align = "center"|2

|-
|align = "center"|1/8
|align = "center"|8
|align = "center"|4

|-
|align = "center"|1/16
|align = "center"|16
|align = "center"|8

|-
|align = "center"|1/32
|align = "center"|32
|align = "center"|16

|}

The signals can be aligned on the same event by selecting the <nowiki>'</nowiki>align<nowiki>'</nowiki> function in the Engine Ribbon.

[[Image:EngineDiag_59.png|framed|none]]

===Comparison===

This Trigger Block Engine result can be saved as any NVGate result. Add the results in the "Save Selection" tab, which is available in the "Save Setup" window, which is accessible in the Measurement Ribbon.
[[Image:EngineDiag_60.png|framed|none]]

Otherwise right click in the window and click on "Add to result selection", like below.

[[Image:EngineDiag_61.gif|framed|none]]

The new saved results will appear in the Project Manager.

[[Image:EngineDiag_62.png|framed|none]]

The saved results can be compared between them or with a current result in the same window.

To add result in a window, drag&drop the result from the project manager to the window.

[[Image:EngineDiag_63.png|framed|none]]

The cycle overview of each of the measurements is also displayed.

===The Averaged RMS Engine===

The Averaged RMS Engine is a result available in Waterfall, allowing you to display the RMS level of the cylinders calculated on the engine cycle and averaged on the measurement.

This new result is based on the RMS level calculated in the Sync. Order plug-in.

Select the results as shown below:

[[Image:EngineDiag_64.png|framed|none]]

The following window will be displayed:

[[Image:EngineDiag_65.png|framed|none]]

This window shows the averaged RMS value on the engine cycle for each cylinder. The viewmeter indicates the value and the symbol
[[Image:EngineDiag_66.png]] represents the standard deviation.

These values are all displayed in a summary table in the infotrace.

After a first visualization of the global RMS level calculated on the complete cycle, it<nowiki>'</nowiki>s possible to display the RMS level of each phase of the cycle; typically the combustion, the exhaust, the intake and the compression.

To display these results, click on one phase of the cycle overview displayed at the bottom of the window.

Below the RMS level is calculated during the combustion.

[[Image:EngineDiag_67.png|framed|none]]

To come back to the global RMS level calculated on the cycle, double click on the cycle overview.

===Comparison===

This Avg. RMS Engine result can be saved like the other NVGate results. Add the results in the "Save Selection" tab available in the "Save setup" window, whichi is accessible in the Measurement Ribbon.

[[Image:EngineDiag_68.png|framed|none]]

The new saved result will appear in the Project Manager.

[[Image:EngineDiag_69.png|framed|none]]

To compare results, drag & drop the results from the Project Manager to the window.

The software will automatically arrange the results by cylinder and date. The results are grouped by cylinders and the first result displayed is the oldest one.

[[Image:EngineDiag_70.png|framed|none]]

[[Image:EngineDiag_71.png|framed|none]]

There is no limitation regarding the number of results that can be displayed at the same time.

To remove results, right click on the window, select <nowiki>'</nowiki>Remove Result<nowiki>'</nowiki> and the results you want to remove.

[[Image:EngineDiag_72.gif|framed|none]]

This display allows you to compare a few measurements. To make a trend analysis on several measurements, it<nowiki>'</nowiki>s possible to change the display mode.

The 2 modes are available by right clicking on the window and selecting "Display Mode".

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|
[[Image:EngineDiag_73.gif|framed|none]]

|align = "right"|
[[Image:EngineDiag_74.png|framed|none]]

|-
|
[[Image:EngineDiag_75.gif|framed|none]]

|align = "right"|
[[Image:EngineDiag_76.png|framed|none]]

|}

The History mode shows the values with the standard deviation in absolute time. It allows you to follow the parameters during a long period.

In this representation, a color is associated to each cylinder. The same color is used on the graph and in the results table in the infotrace.

==Angle-Frequency Analysis and Display==

Angle-Frequency analysis is interesting when working on a reciprocating machine. It allows you to identify specific events.

The method implemented in the software is based on the [https://en.wikipedia.org/wiki/Wigner_distribution_function Wigner-Ville algorithm].

This method is particularly adapted for short transient signal where the STFT is not sufficient. Another advantage is the good resolution, both in angle and frequency, that one can obtain.

The principle is to represent the energy density on a colorspectrogram using the Wigner-Ville distribution (W (θ, f)). The relevance of the results of such analysis depends on settings including angle and frequency resolution.

From this representation, additional results are extracted to make the analysis easier. They correspond to the integration of the energy densities on the engine cycle and on a selected frequency range. They are defined as follows:

- Energy spectrum ''S ''(''f '') = ò''S ''(''q'',''f '')''dq''

- Instantaneous power ''P ''(''q'') = ò''S ''(''q'',''f '')''df''

This analysis is available in post-analyze only.

===A Dedicated Window===
Before starting, note that this analysis is available in post-analyze only.

If a signal is loaded in the player, click on the button "Angle-Frequency" in the Engine Ribbon to open the following dedicated window:

[[Image:EngineDiag_77.png|framed|none]]

It<nowiki>'</nowiki>s also possible to use the "Angle-Frequency Analysis" on another signal not loaded in the player.

In this case, right click on the concerned signal in the project manager and select "Angle-Frequency Analysis".

[[Image:EngineDiag_78.gif|framed|none]]

===Result Manager===

The Result Manager shows the signal(s) and the tracks that will be analyzed in angle-frequency.

Click on the button [[Image:EngineDiag_79.png]]. The following part of the window will appear.

[[Image:EngineDiag_80.png|framed|none]]

'''Signal'''
One can see the selected signal name and the corresponding project.

It<nowiki>'</nowiki>s possible to open several different signals in a same window by clicking on "open signal".

'''Tachometers'''
The second step is to define the tachometers that will be used for the analysis:

* Assoc. Tach: here you can define the tachometer that will be used for the synchronous analysis.
* Samp. Pulse: indicate the tachometer that will be used for the angular sampling. This signal must contain several pulses per revolution and will lead to a better accuracy in angle. Nevertheless, it<nowiki>'</nowiki>s not necessary to define a sampling pulse. The angular sampling can be done with the Assoc. Tach. In this case, set this parameter to none.

'''Tracks'''
Select the tracks that will be analyzed and displayed and click on <nowiki>'</nowiki>Add track<nowiki>'</nowiki>. If several signals are loaded in the window, the displayed tracks list will depend on the selected signal. Select each signal one by one and choose the tracks for each of them.

[[Image:EngineDiag_81.png|framed|none]]

After this first step, it<nowiki>'</nowiki>s possible to click again on [[Image:EngineDiag_82.png]]to reduce this window section.

===Settings===

Three parameters have to be set up: the angular resolution, the frequential resolution and the average size. They can be modified in the window bar:

[[Image:EngineDiag_83.png|framed|none]]

'''Angular resolution:''' this parameter determines the angle that separates two values in the angle axis. The maximum resolution can be determined in function of the machine.
For example, working on a 4-strokes 12 cylinders diesel engine, the angular resolution must be lower than 720/12= 60° to be able to differentiate all the events on the different cylinders.

'''Frequential resolution:''' This parameter determines the frequency that separates two values in the frequency axis.
'''Average size:''' This parameter is the average number used to calculate the Wigner-Ville spectrum. For this result, the average is made on the engine cycle (720° for a 4-strokes engine and 360° for a 2-strokes engine). In most cases, set the average number to 100 leads to good results.

When these parameters are set up, click on [[Image:EngineDiag_84.png]]to launch the computation and display the result.

[[Image:Engine_diag2.png|framed|none]]

===Results===
The window is shared in several parts to present all the useful information.

[[Image:EngineDiag_85.png|framed|none]]

====Display Tools====

Each graph can be maximized by clicking on the following button in the top right corner of each graph. Move the mouse over this area to let the button appear.

[[Image:EngineDiag_86.gif|framed|none]]

In the same way, click on the following button to come back to the default view.

[[Image:EngineDiag_87.gif|framed|none]]

''Cursors''
By default, the energy spectrum and the instantaneous power are calculated from the complete colorspectrogram.

With the mouse, it<nowiki>'</nowiki>s possible to select a part of the colorspectrogram and calculate the energy spectrum and instantaneous power from this selection.

The previous selection can be moved and modified. The results are automatically adjusted depending on the selection.

Double click on the colorspectrogram to come back to the selection by default (the complete colorspectrogram).

2 vertical and 2 horizontal cursors are available on the colorspectrogram. The horizontal cursors are linked to the 2 cursors on the energy spectrum. The vertical cursors are linked to the 2 cursors on the instantaneous power and to the 2 cursors on the cycle overview.

All the cursors values are noted in the infotrace.

[[image:Engine_diag.png|framed|none]]

===Comparison===
====Tracks from the same signal====
Open the result manager with [[Image:EngineDiag_88.png]]

[[Image:EngineDiag_89.png|framed|none]]

All the tracks available in the opened signal are shown. Select the tracks, click on add track and click on the button "Compute" to add these results in the window.

[[Image:EngineDiag_90.png|framed|none]]

Here, one colorspectrogram is displayed. [[Image:EngineDiag_91.png]] indicates the displayed tracks.

The buttons [[Image:EngineDiag_92.png]]
at the left top corner allow you to navigate among the results and visualize the various calculated colorspectrograms.

====Report====
To add the angle-frequency results in a report, go to the Report ribbon, select the active Word file and drag & drop the Angle-Frequency icon to the document.

[[Image:EngineDiag_93.png|framed|none]]

NVGate Diesel Engine Vibration Solution: EngineDiag

2020-06-09T19:07:31Z

AmberSmith:

[https://en.wikipedia.org/wiki/Reciprocating_motion Reciprocating machines] generate specific vibration signatures. Dedicated tools associating the machine mechanical characteristics and high performance analysis capabilities are necessary to understand the dynamic behavior of these machines.
With EngineDiag, OROS takes on the challenge to offer tool integration in one product in order to enhance test efficiency.

==Installation==

EngineDiag is a module integrated in [[NVGate]].

Follow the steps described in the NVGate User<nowiki>'</nowiki>s manual to install it correctly.

For the Angle-Frequency option, it<nowiki>'</nowiki>s necessary to install a complementary application: <nowiki>'</nowiki>SetupAngleFrequency.exe<nowiki>'</nowiki>.

Double click on
[[Image:EngineDiag_06.png]]
and the following window will appear.

[[Image:EngineDiag_07.png|framed|none]]

Click "Next", and the following window will appear.

[[Image:EngineDiag_08.png|framed|none]]

Select the destination folder and click "Install".

Note: if you change the default destination folder, be careful to install the Angle-Frequency module in the same directory as NVGate like the example below:

[[Image:EngineDiag_09.png|framed|none]]

When the installation is completed, click "Close".

==Environment Configuration==

With the EngineDiag module, a new ribbon is available in NVGate. EngineDiag allows you to access to NVGate through an interface, which is dedicated to the engines, and more generally to the reciprocating machines.

[[Image:EngineDiag_10.png|framed|none]]

===Properties===

To simplify data saving, history creation and data search, it is possible and recommended to associate metadata to each measurement.

One can determine two types of metadata:

* Properties related to a measurement campaign
* Properties related to each measurement
Properties are defined by default in NVGate but the list of properties can be modified according to the user's need.

The list of properties is available in the Home ribbon by clicking on Measurement properties.

[[Image:EngineDiag_11.gif|framed|none]]

[[Image:EngineDiag_12.png|framed|none]]

This window shows all the properties used.

For each of them one defines two fields:

* '''Apply to''': indicate where the property will appear.
* Apply to measurement: the property will appear in the save measurement only

[[Image:EngineDiag_13.png|framed|none]]

* Apply to Operation: the property will appear in the operation window and in the save measurement window. The user can pre fill in some of values in the window Operation available in the Engine ribbon.

[[Image:EngineDiag_14.png|framed|none]]

* Apply to nothing: the property will not appear.

* '''Suggest'''
* Empty : the property is empty by default
* Same as previous: by default the property keep the last value entered by the user.
* Same as today: the property keeps the same value during one day. The day after the value is reset to empty.
By selecting show all in this window, all the properties, even those that are not used anymore, are displayed.

[[Image:EngineDiag_15.png|framed|none]]

====Operation====
These properties related to a measurement campaign are generally related to several measurements done on the same day and on the same installation. Instead of writing this information for each measurement, it<nowiki>'</nowiki>s possible to define the environment once before stating the measurement.

This information can be defined in the operation window available by clicking on the button
[[Image:EngineDiag_16.png]]
.

Below are the properties by default:

[[Image:EngineDiag_17.png|framed|none]]

The properties can be defined by what is directly shown in the following example:

[[Image:EngineDiag_18.png|framed|none]]

At this stage, new properties can be added if needed by clicking on "Add new" in this window

[[Image:EngineDiag_19.png|framed|none]]

Select "OK".

All these properties will be added to each measurement that is done on this day.

====Measurement====
In the "Save Measurement" window, all the activated properties are displayed.

The properties are pre-filled in the operation window and appear with the value defined by the user in the operation window.

[[Image:EngineDiag_20.png|framed|none]]

==Engine Configuration==

One of the objectives of the EngineDiag module is to integrate, in NVGate, the physical data related to the engine under test in order to have all this information during the analysis.

The design and the kinematic information can be described by clicking on the button Engine.

[[Image:EngineDiag_21.gif|framed|none]]

The following window is displayed.

[[Image:EngineDiag_22.png|framed|none]]

From this window a complete Engine model can be described.

An Engine model contains the:

* Engine designation
* Engine settings
* Timing information
* Instrumentation
* Type of analysis applied to this engine
This information can be saved in an independent file .engine, in the NVGate projects and in the measurements.

===Engine===
From this first panel, several actions are available:

* New: create a new Engine model
By clicking on "new", a default engine model is loaded and the "settings" panel is automatically displayed.

Here, some modifications can be done.

* Load: Load an existing engine model
By clicking on "Load", an existing engine model can be loaded by selecting a file .engine.

* Remove: Remove the current engine model
* Save as: Save the current engine model to a file
This panel gives also the model name defined in the settings panel and all the comments written by the user. The field "comments" is saved in the engine model.

===Settings===
The settings panel allows you to describe the engine characteristics.

[[Image:EngineDiag_23.png|framed|none]]

The 3 fields: Nominal power, rated speed and cylinder bank angle are here for more information. The results are not influenced by these values.

The other settings will influence the results.

* Cylinder configuration: Vee or In Line
* Engine cycle: 2 strokes or 4 strokes
* Cylinders number: indicate the cylinders number
* Rotating Direction: Clockwise or counterclockwise
With this information, a schematic picture is automatically drawn. The cylinder's names can be modified by clicking directly on them.

On this picture, the small numbers in red represent the firing order. This order can be modified in the panel below the picture.

===Timing===
The timing information corresponds to the machine kinematics. The cycle of each reciprocating machine is divided in to several phases. These phases are separated by kinematic events. The figure below shows the typical cycle of a 4-stroke diesel engine with the different phases:
[[File:Engine_diag3.png|framed|none]]
The duration of each phase is defined by the valves opening and closing. The position of these events is given in angle relative to the Top Dead Center (TDC) where the piston is at top of the cylinder or Bottom Dead Center (BDC) where the piston is at the bottom of the cylinder.
This information is generally contained in the timing diagram provided by the engine manufacturer.
EngineDiag supports the ability to enter the timing diagram information to be used in the analysis. 

The timing panel allows you to describe the timing information generally provided by the engine manufacturer.

[[Image:EngineDiag_24.png|framed|none]]

* The events table
The events table allows you to define the kinematic events (Intake opening, exhaust opening,…) and position them in relation to the events Top Dead Center (TDC) and Bottom Dead Center (BDC).

An event is defined by two things:

* an angle from the TDC or BDC,
* its position in the engine cycle.
This information is important for four-stroke engines. It<nowiki>'</nowiki>s necessary to know if the event appears in the first or in the second crankshaft revolution.
Every modification done in the events table is automatically reported on the two graphs displayed here. At the top, a typical timing diagram and at the bottom the linear engine cycle representation.

A new event can be added by clicking on the
[[Image:EngineDiag_25.png]]
below the events table.
.

* The phases table
From the events described in the events table, the different phases of the engine cycle can be defined. Each phase is defined by its start and stop event as well as a color. The settings can be modified by double clicking on the concerned setting.

A new phase can be added by clicking on the
[[Image:EngineDiag_27.png]]
below the phases table. The selected phase can be removed by clicking on the
[[Image:EngineDiag_28.png]]
.

* Tachometer reference
The tachometer reference is the event synchronized to the tachometer that will be used for the synchronous analysis.

In the example below, the tachometer reference is TDC A1 because the pulse is synchronized with this event.

[[Image:EngineDiag_29.png|framed|none]]

===Instrumentation===
The objective here is to describe the instrumentation installed on the engine under test to keep it in memory.

====Cylinders instrumentation====

This panel displays the instrumentation installed on the cylinders.

For each cylinder, one can define:

* Analyzer input,
* Label,
* Type of transducer by using the transducer database.
The sensitivity of the selected transducer is automatically displayed.

[[Image:EngineDiag_30.png|framed|none]]

Several transducers can be installed on the same cylinder. You can define the maximum number of inputs per cylinder. See the example below with 3 inputs:

[[Image:EngineDiag_31.png|framed|none]]

====Other instrumentation====
In addition to the cylinder instrumentation, others transducers can be installed on the machine.

[[Image:EngineDiag_32.png|framed|none]]

Several groups of transducers can be defined, which are often associated to a machine part: bearing, absorber...

Double click on "New part" to define the part name and click on the
[[Image:EngineDiag_33.png]]
to add a new part.

Several transducers can be associated to each part. By selecting a part, the associated transducers are automatically displayed.

[[Image:EngineDiag_34.png|framed|none]]

By selecting all the parts simultaneously, all the transducers installed on the engine are displayed.

[[Image:EngineDiag_35.png|framed|none]]

====Analysis====

The Analysis panel allows you to select the type of analysis that will be done. This information will be used to help the user to configure NVGate.

[[Image:EngineDiag_36.png|framed|none]]

* The recorder use the NVGate recorder
* The synchronous analysis uses the Synchronous order plug-in
* The asynchronous analysis uses the FFT plug-in

When the engine model is defined, do not forget to save it in the Engine panel with the "Save as" button.

==NVGate configuration==

===The Advisor===
From the parameters defined in the engine model, the Advisor will help the user to configure NVGate correctly.

The advisor is a help, it<nowiki>'</nowiki>s not compulsory to use it for the configuration.

[[Image:EngineDiag_37.png|framed|none]]

The advisor gives a status about the software configuration depending on the Engine model.

Using different colors, the advisor indicates the current status of the NVGate configuration

{|border="2" cellspacing="0" cellpadding="4" width="61%"
|align = "center"|
[[Image:EngineDiag_38.png|framed|none]]

|The measurement will not be done correctly. The configuration should be adjusted.

|-
|align = "center"|
[[Image:EngineDiag_39.png|framed|none]]

|Regarding the type of analysis selected, some settings are missing to obtain all the results.

|-
|align = "center"|
[[Image:EngineDiag_40.png|framed|none]]

|Regarding the type of analysis selected, the NVGate configuration is correct. The user can choose which results he wants to display and start the acquisition

|}

By clicking on the Advisor button, all the errors will be displayed with title, explanation and criticality as below.

[[Image:EngineDiag_41.png]]

For each error, the advisor indicates if it can be solved automatically
[[Image:EngineDiag_42.png]]
or manually
[[Image:EngineDiag_43.png]]
.

* Click on [[Image:EngineDiag_44.png]]will automatically set up NVGate to solve the error.
* Click on [[Image:EngineDiag_45.png]] will open the window where the user has to do an action to solve the error.
To gain time, the function "Fix All" available by the button [[Image:EngineDiag_46.png]]
allows to fix all the displayed errors that can be solved automatically.

[[Image:EngineDiag_47.png|framed|none]]

The" Fix Selected" function, available by the button
[[Image:EngineDiag_48.png]]
, solves the selected errors in the list.

The advisor gives only advices. The user can read the information and decide to ignore some of the errors. Each error can be hidden by clicking on the button hide showed below

[[Image:EngineDiag_49.png|framed|none]]

The "Hide Selected" function, available by the button
[[Image:EngineDiag_50.png]]
, allows to hide several errors at the same time by selecting them.

All the hidden functions are not deleted. At every time the user can display all of them by clicking on the button
[[Image:EngineDiag_51.png]]
.

The advisor displays the important rules to make a correct measurement but the NVGate configuration is not restricted to the advices showed here.

All the capabilities of NVGate are available. The user can complete this first configuration to adapt perfectly the configuration to its application.

==The dedicated results==

With the Engine Module, several dedicated results are available.

These results can be displayed through the window "Add/Remove window" available in the ribbon "Display/Graphs".

[[Image:EngineDiag_52.png|framed|none]]

And also in the ribbon "Engine".

[[Image:EngineDiag_53.png|framed|none]]

===Time signal - The Triggered block Engine===

The triggered block engine is a new result of the Synch order plug-in associating the engine information to the standard synchronous triggered blocks.

Select the results as below:

[[Image:EngineDiag_54.png|framed|none]]

The following window will be displayed

[[Image:EngineDiag_55.png|framed|none]]

Specific features:

* The results are displayed automatically in the firing order defined in the window Engine/Settings

[[Image:EngineDiag_56.png|framed|none]]

* The cycle overview (defined in Engine/Timing) of each displayed cylinders is shown at the bottom of the window. The cycle overview of each cylinders is determined thanks to:
* The tachometer reference
* The firing order
* The timing diagram

* 2 cursors displayed on the signals and the cycle overview allow to identify the kinematic events on the signals.
*
[[Image:EngineDiag_57.png|framed|none]]

On the example above the cursors are positioned at the beginning of the 2 main events of the signal. Looking at the cycle overview, one can notify that:

* the first cursor corresponds to the end of the exhaust phase, ie the exhaust valve closing
* The second cursor corresponds to the end of the intake phase, ie the intake valve closing.
* By default, only one cycle is displayed in this window, 360° (crankshaft angle) for a 2-strokes engine or 720 ° (crankshaft angle) for a 4-strokes engine. More cycles can be displays. The number can be defined in the Engine Ribbon.

[[Image:EngineDiag_58.png|framed|none]]

The max number of cycles that can be displayed depends on the order resolution defined in the Synch order plug-in.

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center"|Order resolution
|align = "center"|Max number of cycles for 2-strokes engine
|align = "center"|Max number of cycles for 4-strokes engine

|-
|align = "center"|1
|align = "center"|1
|align = "center"|0

|-
|align = "center"|½
|align = "center"|2
|align = "center"|1

|-
|align = "center"|¼
|align = "center"|4
|align = "center"|2

|-
|align = "center"|1/8
|align = "center"|8
|align = "center"|4

|-
|align = "center"|1/16
|align = "center"|16
|align = "center"|8

|-
|align = "center"|1/32
|align = "center"|32
|align = "center"|16

|}

* The signals can be aligned on a same event by selecting the <nowiki>'</nowiki>align<nowiki>'</nowiki> function in the Engine Ribbon.

[[Image:EngineDiag_59.png|framed|none]]

===Comparison===

This Trigger Block Engine result can be saved as any NVGate results. Add the results in the Save selection Tab available in the Save setup window accessible in the Measurement Ribbon.
[[Image:EngineDiag_60.png|framed|none]]

Otherwise right click in the window and click on <nowiki>'</nowiki>Add to result selection like below.

[[Image:EngineDiag_61.gif|framed|none]]

The new saved results will appear in the Project Manager.

[[Image:EngineDiag_62.png|framed|none]]

The save results can be compared between them or with current result in the same window.

To add result in a window, drag&drop the result from the project manager to the window.

[[Image:EngineDiag_63.png|framed|none]]

The cycle overview of each of the measurements is also displayed.

===The averaged RMS Engine===

The Averaged RMS Engine is a result available in the Waterfall allowing to display the RMS level of the cylinders calculated on the engine cycle and averaged on the measurement.

This new result is based on the RMS level calculated in the Synch. Order plug-in.

Select the results as below:

[[Image:EngineDiag_64.png|framed|none]]

The following window will be displayed.

[[Image:EngineDiag_65.png|framed|none]]

This window shows the averaged RMS value on the engine cycle for each cylinder. The viewmeter indicates the value and the symbol
[[Image:EngineDiag_66.png]]represents the standard deviation.

These values are all displayed in a summary table in the infotrace.

After a first visualization of the global RMS level calculated on the complete cycle, it<nowiki>'</nowiki>s possible to display the RMS level of each phase of the cycle, typically the combustion, the exhaust, the intake and the compression.

To display these results, click on one phase of the cycle overview displayed at the bottom of the window.

Below the RMS level calculated during the combustion.

[[Image:EngineDiag_67.png|framed|none]]

To come back to the global RMS level calculated on the cycle, double click on the cycle overview.

===Comparison===

This Avg. RMS Engine result can be saved like the others NVGate result. Add the results in the Save selection Tab available in the Save setup window accessible in the Measurement Rubon.

[[Image:EngineDiag_68.png|framed|none]]

The new saved result will appear in the Project Manager.

[[Image:EngineDiag_69.png|framed|none]]

To compare results, drag&drop the results from the Project Manager to the window.

The software will automatically arrange the results by cylinder and date. The results are grouped by cylinders and the first result displayed is the older one.

[[Image:EngineDiag_70.png|framed|none]]

[[Image:EngineDiag_71.png|framed|none]]

There is no limitation regarding the number of results that can be displayed at the same time.

To remove results, right click on the window, select <nowiki>'</nowiki>Remove results<nowiki>'</nowiki> and the results one wants to remove.

[[Image:EngineDiag_72.gif|framed|none]]

This display allows to compare few measurements. To make trend analysis on several measurements, it<nowiki>'</nowiki>s possible to change the display mode.

The 2 modes are available by right clicking on the window and select display mode.

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|
[[Image:EngineDiag_73.gif|framed|none]]

|align = "right"|
[[Image:EngineDiag_74.png|framed|none]]

|-
|
[[Image:EngineDiag_75.gif|framed|none]]

|align = "right"|
[[Image:EngineDiag_76.png|framed|none]]

|}

The History mode shows the values with the standard deviation in absolute time. It allows to follow the parameters during a long period.

In this representation, a color is associated to each cylinder. The same color is used on the graph and in the results table in the infotrace.

==Angle-Frequency analysis and display==

Angle-Frequency analysis is interesting when working on reciprocating machine. It allows to identify specific events.

The method implemented in the software is based on the [https://en.wikipedia.org/wiki/Wigner_distribution_function Wigner-Ville algorithm].

This method is particularly adapted for short transient signal where the STFT is not sufficient. Another advantage is the good resolution both in angle and frequency one can obtain.

The principle is to represent the energy density on a colorspectrogram using the Wigner-Ville distribution (W (θ, f)). The relevance of the results of such analysis depends on settings including angle and frequency resolution.

From this representation, additional results are extracted to make the analysis easier. They correspond to the integration of the energy densities on the engine cycle and on a selected frequency range. They are defined as follows:

- Energy spectrum ''S ''(''f '') = ò''S ''(''q'',''f '')''dq''

- Instantaneous power ''P ''(''q'') = ò''S ''(''q'',''f '')''df''

This analysis is available in post-analyze only.

===A dedicated window===
Before starting, note that this analysis is available in post-analyze only.

If a signal is loaded in the player, click on the button angle-frequency in the Engine Ribbon to open the following dedicated window.

[[Image:EngineDiag_77.png|framed|none]]

It<nowiki>'</nowiki>s also possible to use the angle-frequency analysis on another signal not loaded in the player.

In this case, right click on the concerned signal in the project manager and select Angle-Frequency Analysis.

[[Image:EngineDiag_78.gif|framed|none]]

===Result manager===

The Result manager shows the signal(s) and the tracks that will be analyzed in angle-frequency.

Click on the button [[Image:EngineDiag_79.png]]. The following part of the window will appear.

[[Image:EngineDiag_80.png|framed|none]]

* Signal
One can see the selected signal name and the corresponding project.

It<nowiki>'</nowiki>s possible to open several different signals in a same window by clicking on "open signal".

* Tachometers
The second step is to define the tachometers that will be used for the analysis:

* Assoc. Tach: define here the tachometer that will be used for the synchronous analysis.
* Samp. Pulse: indicate here the tachometer that will be used for the angular sampling. This signal must contain several pulses per revolution and will lead to a better accuracy in angle. Nevertheless, it<nowiki>'</nowiki>s not necessary to define a sampling pulse. The angular sampling can be done with the Assoc. Tach. In this case, set this parameter to none.
* Tracks
Select the tracks that will be analyzed and displayed and click on <nowiki>'</nowiki>Add track<nowiki>'</nowiki>. If several signals are loaded in the window, the displayed tracks list will depend on the selected signal. Select each signal one by one and choose the tracks for each of them.

[[Image:EngineDiag_81.png|framed|none]]

After this first step, it<nowiki>'</nowiki>s possible to click again on [[Image:EngineDiag_82.png]]to reduce this window part.

===Settings===

Three parameters have to be set up, the angular resolution, the frequential resolution and the average size. They can be modified in the window bar:

[[Image:EngineDiag_83.png|framed|none]]

* Angular resolution: this parameter determines the angle that separates two values in the angle axis. The maximum resolution can be determined in function of the machine.
For example, working on a 4-strokes 12 cylinders diesel engine, the angular resolution must be lower than 720/12= 60° to be able to differentiate all the events on the different cylinders.

* Frequential resolution: This parameter determines the frequency that separates two values in the frequency axis.
* Average size: This parameter is the average number used to calculate the Wigner-Ville spectrum. For this result, the average is made on the engine cycle (720° for a 4-strokes engine and 360° for a 2-strokes engine). In most cases, set the average number to 100 lead to good results.

When these parameters are set up, click on [[Image:EngineDiag_84.png]]to launch the computation and display the result.

[[Image:Engine_diag2.png|framed|none]]

===Results===
The window is shared in several parts to present all the useful information.

[[Image:EngineDiag_85.png|framed|none]]

====display tools====

Each graph can be maximized by clicking on the following button in the top right corner of each graph. Move the mouse over this area to let the button appear.

[[Image:EngineDiag_86.gif|framed|none]]

In the same way, click on the following button to come back to the default view.

[[Image:EngineDiag_87.gif|framed|none]]

* Cursors
By default the energy spectrum and the instantaneous power are calculated from the complete colorspectrogram.

With the mouse, it<nowiki>'</nowiki>s possible to select a part of the colorspectrogram and calculate the energy spectrum and instantaneous power from this selection.

The previous selection can be moved and modified. The results are automatically adjusted depending on the selection.

Double click on the colorspectrogram to come back to the selection by default (the complete colorspectrogram).

2 vertical and 2 horizontal cursors are available on the colorspectrogram. The horizontal cursors are linked to the 2 cursors on the energy spectrum. The vertical cursors are linked to the 2 cursors on the instantaneous power and to the 2 cursors on the cycle overview.

All the cursors values are noted in the infotrace.

[[image:Engine_diag.png|framed|none]]

===Comparison===
====Tracks from the same signal====
Open the result manager part [[Image:EngineDiag_88.png]]

[[Image:EngineDiag_89.png|framed|none]]

All the tracks available in the opened signal are showed. Select the tracks, click on add track and click on the button Compute to add these results in the window

[[Image:EngineDiag_90.png|framed|none]]

Here, one colorspectrogram is displayed. [[Image:EngineDiag_91.png]] indicates the displayed tracks.

The buttons [[Image:EngineDiag_92.png]]
at the left top corner allow to navigate among the results and visualize the various calculated colorspectrograms.

====Report====
To add the angle-frequency results in a report, go to the report ribbon, select the active Word file and drag&drop the Angle frequency icon to the document.

[[Image:EngineDiag_93.png|framed|none]]

NVGate Diesel Engine Vibration Solution: EngineDiag

2020-06-02T20:35:46Z

AmberSmith:

[https://en.wikipedia.org/wiki/Reciprocating_motion Reciprocating machines] generate specific vibration signatures. Dedicated tools associating the machine mechanical characteristics and high performance analysis capabilities are necessary to understand the dynamic behavior of these machines.
With EngineDiag, OROS takes on the challenge to offer tool integration in one product in order to enhance test efficiency.

==Installation==

EngineDiag is a module integrated in [[NVGate]].

Follow the steps described in the NVGate User<nowiki>'</nowiki>s manual to install it correctly.

For the Angle-Frequency option, it<nowiki>'</nowiki>s necessary to install a complementary application: <nowiki>'</nowiki>SetupAngleFrequency.exe<nowiki>'</nowiki>.

Double click on
[[Image:EngineDiag_06.png]]
and the following window will appear.

[[Image:EngineDiag_07.png|framed|none]]

Click "Next", and the following window will appear.

[[Image:EngineDiag_08.png|framed|none]]

Select the destination folder and click "Install".

Note: if you change the default destination folder, be careful to install the Angle-Frequency module in the same directory as NVGate like the example below:

[[Image:EngineDiag_09.png|framed|none]]

When the installation is completed, click "Close".

==Environment Configuration==

With the EngineDiag module, a new ribbon is available in NVGate. EngineDiag allows you to access to NVGate through an interface, which is dedicated to the engines, and more generally to the reciprocating machines.

[[Image:EngineDiag_10.png|framed|none]]

===Properties===

To simplify data saving, history creation and data search, it is possible and recommended to associate metadata to each measurement.

One can determine two types of metadata:

* Properties related to a measurement campaign
* Properties related to each measurement
Properties are defined by default in NVGate but the list of properties can be modified according to the user's need.

The list of properties is available in the Home ribbon by clicking on Measurement properties.

[[Image:EngineDiag_11.gif|framed|none]]

[[Image:EngineDiag_12.png|framed|none]]

This window shows all the properties used.

For each of them one defines two fields:

* '''Apply to''': indicate where the property will appear.
* Apply to measurement: the property will appear in the save measurement only

[[Image:EngineDiag_13.png|framed|none]]

* Apply to Operation: the property will appear in the operation window and in the save measurement window. The user can pre fill in some of values in the window Operation available in the Engine ribbon.

[[Image:EngineDiag_14.png|framed|none]]

* Apply to nothing: the property will not appear.

* '''Suggest'''
* Empty : the property is empty by default
* Same as previous: by default the property keep the last value entered by the user.
* Same as today: the property keeps the same value during one day. The day after the value is reset to empty.
By selecting show all in this window, all the properties, even those that are not used anymore, are displayed.

[[Image:EngineDiag_15.png|framed|none]]

====Operation====
These properties related to a measurement campaign are generally related to several measurements done on the same day and on the same installation. Instead of writing this information for each measurement, it<nowiki>'</nowiki>s possible to define the environment once before stating the measurement.

This information can be defined in the operation window available by clicking on the button
[[Image:EngineDiag_16.png]]
.

Below are the properties by default:

[[Image:EngineDiag_17.png|framed|none]]

The properties can be defined by what is directly shown in the following example:

[[Image:EngineDiag_18.png|framed|none]]

At this stage, new properties can be added if needed by clicking on "Add new" in this window

[[Image:EngineDiag_19.png|framed|none]]

Select "OK".

All these properties will be added to each measurement that is done on this day.

====Measurement====
In the "Save Measurement" window, all the activated properties are displayed.

The properties are pre-filled in the operation window and appear with the value defined by the user in the operation window.

[[Image:EngineDiag_20.png|framed|none]]

==Engine Configuration==

One of the objectives of the EngineDiag module is to integrate in NVGate the physical data related to the engine under test in order to have all this information during the analysis.

The design and the kinematic information can be described by clicking on the button Engine.

[[Image:EngineDiag_21.gif|framed|none]]

The following window is displayed.

[[Image:EngineDiag_22.png|framed|none]]

From this window a complete Engine model can be described.

An Engine model contains the:

* Engine designation
* Engine settings
* Timing information
* Instrumentation
* Type of analysis applied to this engine
This information can be saved in an independent file .engine, in the NVGate projects and in the measurements.

===Engine===
From this first panel, several actions are available:

* New: create a new Engine model
By clicking on "new", a default engine model is loaded and the "settings" panel is automatically displayed.

From here some modifications can be done.

* Load: Load an existing engine model
By clicking on "Load", an existing engine model can be loaded by selecting a file .engine.

* Remove: Remove the current engine model
* Save as: Save the current engine model to a file
This panel gives also the model name defined in the settings panel and all the comments written by the user. The field "comments" is saved in the engine model.

===Settings===
The settings panel allows to describe the engine characteristics.

[[Image:EngineDiag_23.png|framed|none]]

The 3 fields: Nominal power, rated speed and cylinder bank angle are here for information. The results are not influenced by these values.

The others settings will influence the results.

* Cylinder configuration: Vee or In Line
* Engine cycle: 2 strokes or 4 strokes
* Cylinders number: indicate the cylinders number
* Rotating Direction: Clockwise or counterclockwise
With this information, a schematic picture is automatically drawn. The cylinders names can be modified by clicking directly on them.

On this picture, the small numbers in red represent the firing order. This order can be modified panel below the picture.

===Timing===
The timing information corresponds to the machine kinematics. The cycle of each reciprocating machine is divided in to several phases. These phases are separated by kinematic events. The figure below shows the typical cycle of a 4-stroke diesel engine with the different phases:
[[File:Engine_diag3.png|framed|none]]
The duration of each phase is defined by the valves opening and closing. The position of these events is given in angle relatively to the Top Dead Center (TDC) where the piston is at top of the cylinder or Bottom Dead Center (BDC) where the piston is at the bottom of the cylinder.
This information is generally contained in the timing diagram provided by the engine manufacturer.
EngineDiag supports the ability to enter the timing diagram information to be used in the analysis. 

The timing panel allows to describe the timing information generally provided by the engine manufacturer.

[[Image:EngineDiag_24.png|framed|none]]

* The events table
The events table allows define the kinematic events (Intake opening, exhaust opening,…) and position them in relation to the events Top Dead Center (TDC) and Bottom Dead Center (BDC).

An event is defined by:

* an angle from the TDC or BDC,
* its position in the engine cycle. This information is important for four-stroke engines. It<nowiki>'</nowiki>s necessary to know if the event appears in the first or in the second crankshaft revolution.
Every modifications done in the events table is automatically reported on the two graphs displayed here. At the top, a typical timing diagram and at the bottom the linear engine cycle representation.

A new event can be added by clicking on
[[Image:EngineDiag_25.png]]
below the events table.png]]
.

* The phases table
From the events described in the events table, the different phases of the engine cycle can be defined. Each phase is defined by its start and stop event as well as a color. The settings can be modified by double clicking on the concerned setting.

A new phase can be added by clicking on
[[Image:EngineDiag_27.png]]
below the phases table. The selected phase can be removed by clicking on
[[Image:EngineDiag_28.png]]
.

* Tachometer reference
The tachometer reference is the event synchronized to the tachometer that will be used for the synchronous analysis.

In the example below, the tachometer reference is TDC A1 because the pulse is synchronized with this event.

[[Image:EngineDiag_29.png|framed|none]]

===Instrumentation===
The objective here is to describe the instrumentation installed on the engine under test to keep it in memory.

====Cylinders instrumentation====

This panel displays the instrumentation installed on the cylinders.

For each cylinder, one can define:

* Analyzer input,
* Label,
* Type of transducer by using the transducer database. The sensitivity of the selected transducer is automatically displayed.

[[Image:EngineDiag_30.png|framed|none]]

Several transducers can be installed on the same cylinder. Define the maximum number of inputs per cylinder. See the example below with 3 inputs.

[[Image:EngineDiag_31.png|framed|none]]

====Other instrumentation====
In addition to the cylinder instrumentation, others transducers can be installed on the machine.

[[Image:EngineDiag_32.png|framed|none]]

Several groups of transducers can be defined often associated to a machine part: bearing, absorber...

Double click on "New part" to define the part name and click on
[[Image:EngineDiag_33.png]]
to add a new part.

Several transducers can be associated to each part. By selecting a part, the associated transducers are automatically displayed.

[[Image:EngineDiag_34.png|framed|none]]

By selecting all the parts simultaneously, all the transducers installed on the engine are displayed.

[[Image:EngineDiag_35.png|framed|none]]

====Analysis====

The Analysis panel allows to select the type of analysis that will be done. This information will be used to help the user to configure NVGate.

[[Image:EngineDiag_36.png|framed|none]]

* The recorder use the NVGate recorder
* The synchronous analysis uses the Synchronous order plug-in
* The asynchronous analysis uses the FFT plug-in

When the engine model is defined do not forget to save it in the Engine panel with the Save as button.

==NVGate configuration==

===The Advisor===
From the parameters defined in the engine model, the Advisor will help the user to configure NVGate correctly.

The advisor is a help, it<nowiki>'</nowiki>s not compulsory to use it for the configuration.

[[Image:EngineDiag_37.png|framed|none]]

The advisor gives a status about the software configuration depending on the Engine model.

Using different colors, the advisor indicates the current status of the NVGate configuration

{|border="2" cellspacing="0" cellpadding="4" width="61%"
|align = "center"|
[[Image:EngineDiag_38.png|framed|none]]

|The measurement will not be done correctly. The configuration should be adjusted.

|-
|align = "center"|
[[Image:EngineDiag_39.png|framed|none]]

|Regarding the type of analysis selected, some settings are missing to obtain all the results.

|-
|align = "center"|
[[Image:EngineDiag_40.png|framed|none]]

|Regarding the type of analysis selected, the NVGate configuration is correct. The user can choose which results he wants to display and start the acquisition

|}

By clicking on the Advisor button, all the errors will be displayed with title, explanation and criticality as below.

[[Image:EngineDiag_41.png]]

For each error, the advisor indicates if it can be solved automatically
[[Image:EngineDiag_42.png]]
or manually
[[Image:EngineDiag_43.png]]
.

* Click on [[Image:EngineDiag_44.png]]will automatically set up NVGate to solve the error.
* Click on [[Image:EngineDiag_45.png]] will open the window where the user has to do an action to solve the error.
To gain time, the function "Fix All" available by the button [[Image:EngineDiag_46.png]]
allows to fix all the displayed errors that can be solved automatically.

[[Image:EngineDiag_47.png|framed|none]]

The" Fix Selected" function, available by the button
[[Image:EngineDiag_48.png]]
, solves the selected errors in the list.

The advisor gives only advices. The user can read the information and decide to ignore some of the errors. Each error can be hidden by clicking on the button hide showed below

[[Image:EngineDiag_49.png|framed|none]]

The "Hide Selected" function, available by the button
[[Image:EngineDiag_50.png]]
, allows to hide several errors at the same time by selecting them.

All the hidden functions are not deleted. At every time the user can display all of them by clicking on the button
[[Image:EngineDiag_51.png]]
.

The advisor displays the important rules to make a correct measurement but the NVGate configuration is not restricted to the advices showed here.

All the capabilities of NVGate are available. The user can complete this first configuration to adapt perfectly the configuration to its application.

==The dedicated results==

With the Engine Module, several dedicated results are available.

These results can be displayed through the window "Add/Remove window" available in the ribbon "Display/Graphs".

[[Image:EngineDiag_52.png|framed|none]]

And also in the ribbon "Engine".

[[Image:EngineDiag_53.png|framed|none]]

===Time signal - The Triggered block Engine===

The triggered block engine is a new result of the Synch order plug-in associating the engine information to the standard synchronous triggered blocks.

Select the results as below:

[[Image:EngineDiag_54.png|framed|none]]

The following window will be displayed

[[Image:EngineDiag_55.png|framed|none]]

Specific features:

* The results are displayed automatically in the firing order defined in the window Engine/Settings

[[Image:EngineDiag_56.png|framed|none]]

* The cycle overview (defined in Engine/Timing) of each displayed cylinders is shown at the bottom of the window. The cycle overview of each cylinders is determined thanks to:
* The tachometer reference
* The firing order
* The timing diagram

* 2 cursors displayed on the signals and the cycle overview allow to identify the kinematic events on the signals.
*
[[Image:EngineDiag_57.png|framed|none]]

On the example above the cursors are positioned at the beginning of the 2 main events of the signal. Looking at the cycle overview, one can notify that:

* the first cursor corresponds to the end of the exhaust phase, ie the exhaust valve closing
* The second cursor corresponds to the end of the intake phase, ie the intake valve closing.
* By default, only one cycle is displayed in this window, 360° (crankshaft angle) for a 2-strokes engine or 720 ° (crankshaft angle) for a 4-strokes engine. More cycles can be displays. The number can be defined in the Engine Ribbon.

[[Image:EngineDiag_58.png|framed|none]]

The max number of cycles that can be displayed depends on the order resolution defined in the Synch order plug-in.

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center"|Order resolution
|align = "center"|Max number of cycles for 2-strokes engine
|align = "center"|Max number of cycles for 4-strokes engine

|-
|align = "center"|1
|align = "center"|1
|align = "center"|0

|-
|align = "center"|½
|align = "center"|2
|align = "center"|1

|-
|align = "center"|¼
|align = "center"|4
|align = "center"|2

|-
|align = "center"|1/8
|align = "center"|8
|align = "center"|4

|-
|align = "center"|1/16
|align = "center"|16
|align = "center"|8

|-
|align = "center"|1/32
|align = "center"|32
|align = "center"|16

|}

* The signals can be aligned on a same event by selecting the <nowiki>'</nowiki>align<nowiki>'</nowiki> function in the Engine Ribbon.

[[Image:EngineDiag_59.png|framed|none]]

===Comparison===

This Trigger Block Engine result can be saved as any NVGate results. Add the results in the Save selection Tab available in the Save setup window accessible in the Measurement Ribbon.
[[Image:EngineDiag_60.png|framed|none]]

Otherwise right click in the window and click on <nowiki>'</nowiki>Add to result selection like below.

[[Image:EngineDiag_61.gif|framed|none]]

The new saved results will appear in the Project Manager.

[[Image:EngineDiag_62.png|framed|none]]

The save results can be compared between them or with current result in the same window.

To add result in a window, drag&drop the result from the project manager to the window.

[[Image:EngineDiag_63.png|framed|none]]

The cycle overview of each of the measurements is also displayed.

===The averaged RMS Engine===

The Averaged RMS Engine is a result available in the Waterfall allowing to display the RMS level of the cylinders calculated on the engine cycle and averaged on the measurement.

This new result is based on the RMS level calculated in the Synch. Order plug-in.

Select the results as below:

[[Image:EngineDiag_64.png|framed|none]]

The following window will be displayed.

[[Image:EngineDiag_65.png|framed|none]]

This window shows the averaged RMS value on the engine cycle for each cylinder. The viewmeter indicates the value and the symbol
[[Image:EngineDiag_66.png]]represents the standard deviation.

These values are all displayed in a summary table in the infotrace.

After a first visualization of the global RMS level calculated on the complete cycle, it<nowiki>'</nowiki>s possible to display the RMS level of each phase of the cycle, typically the combustion, the exhaust, the intake and the compression.

To display these results, click on one phase of the cycle overview displayed at the bottom of the window.

Below the RMS level calculated during the combustion.

[[Image:EngineDiag_67.png|framed|none]]

To come back to the global RMS level calculated on the cycle, double click on the cycle overview.

===Comparison===

This Avg. RMS Engine result can be saved like the others NVGate result. Add the results in the Save selection Tab available in the Save setup window accessible in the Measurement Rubon.

[[Image:EngineDiag_68.png|framed|none]]

The new saved result will appear in the Project Manager.

[[Image:EngineDiag_69.png|framed|none]]

To compare results, drag&drop the results from the Project Manager to the window.

The software will automatically arrange the results by cylinder and date. The results are grouped by cylinders and the first result displayed is the older one.

[[Image:EngineDiag_70.png|framed|none]]

[[Image:EngineDiag_71.png|framed|none]]

There is no limitation regarding the number of results that can be displayed at the same time.

To remove results, right click on the window, select <nowiki>'</nowiki>Remove results<nowiki>'</nowiki> and the results one wants to remove.

[[Image:EngineDiag_72.gif|framed|none]]

This display allows to compare few measurements. To make trend analysis on several measurements, it<nowiki>'</nowiki>s possible to change the display mode.

The 2 modes are available by right clicking on the window and select display mode.

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|
[[Image:EngineDiag_73.gif|framed|none]]

|align = "right"|
[[Image:EngineDiag_74.png|framed|none]]

|-
|
[[Image:EngineDiag_75.gif|framed|none]]

|align = "right"|
[[Image:EngineDiag_76.png|framed|none]]

|}

The History mode shows the values with the standard deviation in absolute time. It allows to follow the parameters during a long period.

In this representation, a color is associated to each cylinder. The same color is used on the graph and in the results table in the infotrace.

==Angle-Frequency analysis and display==

Angle-Frequency analysis is interesting when working on reciprocating machine. It allows to identify specific events.

The method implemented in the software is based on the [https://en.wikipedia.org/wiki/Wigner_distribution_function Wigner-Ville algorithm].

This method is particularly adapted for short transient signal where the STFT is not sufficient. Another advantage is the good resolution both in angle and frequency one can obtain.

The principle is to represent the energy density on a colorspectrogram using the Wigner-Ville distribution (W (θ, f)). The relevance of the results of such analysis depends on settings including angle and frequency resolution.

From this representation, additional results are extracted to make the analysis easier. They correspond to the integration of the energy densities on the engine cycle and on a selected frequency range. They are defined as follows:

- Energy spectrum ''S ''(''f '') = ò''S ''(''q'',''f '')''dq''

- Instantaneous power ''P ''(''q'') = ò''S ''(''q'',''f '')''df''

This analysis is available in post-analyze only.

===A dedicated window===
Before starting, note that this analysis is available in post-analyze only.

If a signal is loaded in the player, click on the button angle-frequency in the Engine Ribbon to open the following dedicated window.

[[Image:EngineDiag_77.png|framed|none]]

It<nowiki>'</nowiki>s also possible to use the angle-frequency analysis on another signal not loaded in the player.

In this case, right click on the concerned signal in the project manager and select Angle-Frequency Analysis.

[[Image:EngineDiag_78.gif|framed|none]]

===Result manager===

The Result manager shows the signal(s) and the tracks that will be analyzed in angle-frequency.

Click on the button [[Image:EngineDiag_79.png]]. The following part of the window will appear.

[[Image:EngineDiag_80.png|framed|none]]

* Signal
One can see the selected signal name and the corresponding project.

It<nowiki>'</nowiki>s possible to open several different signals in a same window by clicking on "open signal".

* Tachometers
The second step is to define the tachometers that will be used for the analysis:

* Assoc. Tach: define here the tachometer that will be used for the synchronous analysis.
* Samp. Pulse: indicate here the tachometer that will be used for the angular sampling. This signal must contain several pulses per revolution and will lead to a better accuracy in angle. Nevertheless, it<nowiki>'</nowiki>s not necessary to define a sampling pulse. The angular sampling can be done with the Assoc. Tach. In this case, set this parameter to none.
* Tracks
Select the tracks that will be analyzed and displayed and click on <nowiki>'</nowiki>Add track<nowiki>'</nowiki>. If several signals are loaded in the window, the displayed tracks list will depend on the selected signal. Select each signal one by one and choose the tracks for each of them.

[[Image:EngineDiag_81.png|framed|none]]

After this first step, it<nowiki>'</nowiki>s possible to click again on [[Image:EngineDiag_82.png]]to reduce this window part.

===Settings===

Three parameters have to be set up, the angular resolution, the frequential resolution and the average size. They can be modified in the window bar:

[[Image:EngineDiag_83.png|framed|none]]

* Angular resolution: this parameter determines the angle that separates two values in the angle axis. The maximum resolution can be determined in function of the machine.
For example, working on a 4-strokes 12 cylinders diesel engine, the angular resolution must be lower than 720/12= 60° to be able to differentiate all the events on the different cylinders.

* Frequential resolution: This parameter determines the frequency that separates two values in the frequency axis.
* Average size: This parameter is the average number used to calculate the Wigner-Ville spectrum. For this result, the average is made on the engine cycle (720° for a 4-strokes engine and 360° for a 2-strokes engine). In most cases, set the average number to 100 lead to good results.

When these parameters are set up, click on [[Image:EngineDiag_84.png]]to launch the computation and display the result.

[[Image:Engine_diag2.png|framed|none]]

===Results===
The window is shared in several parts to present all the useful information.

[[Image:EngineDiag_85.png|framed|none]]

====display tools====

Each graph can be maximized by clicking on the following button in the top right corner of each graph. Move the mouse over this area to let the button appear.

[[Image:EngineDiag_86.gif|framed|none]]

In the same way, click on the following button to come back to the default view.

[[Image:EngineDiag_87.gif|framed|none]]

* Cursors
By default the energy spectrum and the instantaneous power are calculated from the complete colorspectrogram.

With the mouse, it<nowiki>'</nowiki>s possible to select a part of the colorspectrogram and calculate the energy spectrum and instantaneous power from this selection.

The previous selection can be moved and modified. The results are automatically adjusted depending on the selection.

Double click on the colorspectrogram to come back to the selection by default (the complete colorspectrogram).

2 vertical and 2 horizontal cursors are available on the colorspectrogram. The horizontal cursors are linked to the 2 cursors on the energy spectrum. The vertical cursors are linked to the 2 cursors on the instantaneous power and to the 2 cursors on the cycle overview.

All the cursors values are noted in the infotrace.

[[image:Engine_diag.png|framed|none]]

===Comparison===
====Tracks from the same signal====
Open the result manager part [[Image:EngineDiag_88.png]]

[[Image:EngineDiag_89.png|framed|none]]

All the tracks available in the opened signal are showed. Select the tracks, click on add track and click on the button Compute to add these results in the window

[[Image:EngineDiag_90.png|framed|none]]

Here, one colorspectrogram is displayed. [[Image:EngineDiag_91.png]] indicates the displayed tracks.

The buttons [[Image:EngineDiag_92.png]]
at the left top corner allow to navigate among the results and visualize the various calculated colorspectrograms.

====Report====
To add the angle-frequency results in a report, go to the report ribbon, select the active Word file and drag&drop the Angle frequency icon to the document.

[[Image:EngineDiag_93.png|framed|none]]

NVGate EVHV

2020-06-02T17:39:16Z

AmberSmith:

==Introduction and Overview==
===Objectives===
The objective of the EVHV module is to characterize the electromagnetic forces which are responsible of the noise emission of an electric motor. In particular it will be achieved through 2 main steps:

* eFrequencies determination and displays: They represent the characteristic frequencies that one may expect to find in the spectra. They are based on the specificities of the motor and depend on the RPM. For this reason, they are defined as harmonics.

* Spatiograms analysis and displays: Spatiograms are calculated based on measurements of accelerometers data distributed around the surface of the motor stator as shown in the picture below.

[[Image:EVHV_01.gif|framed|none]]

''Sensors positioned for Spatiograms analysis''

Each spatiogram is a representative of a spatial distribution of the Electromagnetic forces. The sum of the participation of each spatiogram leads to the global vibration response. Determining the spatiogram responsible for the vibration harmonic that should be decreased is one of the major objectives of the EVHV module.

[[Image:EVHV_02.png|framed|none]]

''Separation of the response in a sum of participating wavenumbers''

==="Getting Started" Tutorial===
The following tutorial is based on a provided project called "EVHV App Z12p2". To follow the steps below, one should first place this project in the NVGate projects directory. When starting NVGate the following window will display. One should open a project and select "EVHV App Z12p2". This chapter is meant to provide a first global approach in order to go through the main steps.

===Open the Project and Load Setup===

[[Image:EVHV_03.gif|framed|none]]

''Open project''

[[Image:EVHV_04.gif|framed|none]]

''Load Setup, last saved in project''

The setup contains 2 layouts: Spectra and Spatio

[[Image:EVHV_05.png|framed|none]]

''Display layout 1 called Spectra''

===Checking the eFrequencies===

[[Image:EVHV_06.png|framed|none]]

''EV/HV ribbon''

eMachine should be clicked to access to the following dialog. At this stage, one can select the main characteristics of the eMotor.

[[Image:EVHV_07.gif|framed|none]]

''Machine definition''

When the machine is configured, one can press Save. The user goes automatically to the following dialog which is the "eMarkers" one.

[[Image:EVHV_08.png|framed|none]]

''eMarkers table''

When pressing "Apply" the eMarkers will be displayed on the graphs of the current layout.

[[Image:EVHV_09.png|framed|none]]

''Spectra with the eMarkers''

The eMarkers dialog should be closed by clicking on the cross on the top right hand-side.

Change the Layout to reach layout2 (called Spatio): Changing the layout can be achieved by clicking on
[[Image:EVHV_10.png]]
which is located in the "Measurement" tab. A keyboard shortcut also exists: <nowiki>[</nowiki>CTRL<nowiki>+</nowiki>SPACE<nowiki>]</nowiki>.

===Displaying Spatiograms===

[[Image:EVHV_11.png|framed|none]]

''Icons linked to the display of the spatiograms''

By opening the
[[Image:EVHV_12.png]]
Sensor Positions editor, one can check the positions that were saved in the setup.

[[Image:EVHV_13.png|framed|none]]

The next step is to select a measurement. In the provided project and its contained measurement, spatiograms are already calculated. One should press the icon "select measurement" as shown below. In the dialog that follows, one should type in the filtering area. For example: "Z12". This will allow you to easily find the appropriate measurement.

[[Image:EVHV_14.png|framed|none]]

''Selecting a measurement''

If a spatiogram has not already been calculated, at this point, spatiograms for all wavenumbers will be loaded and displayed as you can see in our below example. Please note that there will be one spatiogram per wavenumber.

[[Image:EVHV_15.png|framed|none]]

''Loading the Spatiograms''

Following that action, the spatiograms are automatically scaled and displayed as follows.

[[Image:EVHV_16.png|framed|none]]

''Spatiograms displays''

* The spatiograms are displayed here using the 3*3 configuration.
* The left top window is a reference spectrogram, the others are spatiograms
* The spatiograms are automatically scaled by using the default "scale on max display option". It takes the Max of all results and set it as the maximum value of the scale.
* We want now to find the participating wavenumbers to the specific harmonic of interest. As an example, we want to know what the participating wavenumbers to H12 are (Index 3). We see that the wavenumber 0 is clearly the highest contributor to H12.
* Applying the eMarkers, confirms that emarker3 is placed on the spatiogram.

[[Image:EVHV_17.png|framed|none]]

''Applying eMarkers to the Spatiograms''

When using the displays:

* The windows configuration can be changed using [[Image:EVHV_18.gif]]

* The scaling can be updated using the Scale on Max [[Image:EVHV_19.png]]or the scale on displayed [[Image:EVHV_20.png]]

* The reference spectrogram (after selecting it) can be changed by using [[Image:EVHV_21.gif]]

* The wavenumber for each spatiogram can be changed by using [[Image:EVHV_22.png]]

----

==eFrequencies: from eMachine Setup to eMarkers Display==
There are 2 main steps in the determination of the eFrequencies: the machine description achieved through the eMachine tab [[Image:EVHV_23.gif]] and the eMarkers tab [[Image:EVHV_24.png]] where the eFrequencies are calculated.

===eMachine===
By clicking on [[Image:EVHV_25.gif]], one displays the following dialog. Two main types of machines are configurable: PMSM machines and SCIM machines.

[[Image:EVHV_26.png|framed|none]]

One can keep this configuration in the workbook of the project by pressing SAVE. After pressing SAVE, the eMarkers tab opens automatically.

One can load an eMachine by pressing LOAD. When opening a project with its associated workbook, the eMachine saved in the workbook of that project will be automatically loaded.

The configuration parameters depend on the type of machine and they can be seen in the above example.

===eMarkers===
The eMarkers associated to the eMachine can be displayed by clicking on the following icon [[Image:EVHV_27.png]]
. From the table one can apply the eMarkers to the relevant graphs (spectra, spectrograms, spatiograms).

[[Image:EVHV_28.png|framed|none]]

One can choose to whether or not to have them displayed by activating/inactivating the VIEW checkbox.

When displaying eMarkers for a SCIM machine, one should setup the SLIP as well (between 0 and 1).

The tool tip of each eMarker will provide more detail about the eMarker. To see it, the eFrequencies editor needs to be active and one needs to hold the mouse for one second over the harmonic.

One should read the table using the following notations:

* H: Harmonics of the rotating speed
* f: frequency
* fs: electric stator frequency
* r: wavenumbers

----

==Spatiograms: from Acquisition to Display==
Spatiograms allow us to evaluate the contribution of each wavenumber to the vibration response. This is done by comparing all the spatiograms to one reference spectrogram. Spatiograms are calculated offline based on instant spectra waterfalls using the motor RPMs or time as the z axis reference. If the spatiograms are not contained in the project, they are automatically calculated when selecting the measurement.

In the spatiograms ribbon area the following actions can be achieved:

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|align = "center"|
[[Image:EVHV_29.png|framed|none]]

|Sensors positions
|Allows to specify the positions of the accelerometers used to measure and calculate the spatiograms.

|-
|align = "center"|
[[Image:EVHV_30.png|framed|none]]

|Select inputs
|Allows access to the inputs configuration. This is used to setup the instrument to acquire the data required to calculate the spatiograms.

|-
|align = "center"|
[[Image:EVHV_31.png|framed|none]]

|Load
|Allows you to load a measurement setup. One can, for example, reload a measurement setup which was used for a previous measurement.

|-
|align = "center"|
[[Image:EVHV_32.png|framed|none]]

|Post analyze
|Allows you to post analyze a signal that was recorded.

|-
|align = "center"|
[[Image:EVHV_33.gif|framed|none]]

|Select measurement
|Allows you to select the measurement containing the results. If the measurement already contains the spatiograms, they will be displayed. Otherwise they will be recalculated.

|-
|align = "center"|
[[Image:EVHV_34.gif|framed|none]]

|Scale on Max
|Allows you to rescale all spatiograms with the same Max scale. This max scale is the Max value contained in all spatiograms. This icon is available when a spatiogram is active. It is greyed when a reference spectrogram is active.

|-
|align = "center"|
[[Image:EVHV_35.gif|framed|none]]

|Scale on Displayed
|Allows you to rescale all spatiograms with the same Max scale. This max scale is the Max value contained in all the displayed spatiograms. This icon is available when a spatiogram is active. It is greyed when a reference spectrogram is active.

|-
|align = "center"|
[[Image:EVHV_36.png|framed|none]]

|Windows configuration
|Allows you to choose the windows configurations. It also allows you to refresh the display.

|-
|align = "center"|
[[Image:EVHV_37.png|framed|none]]

|Reference spectrogram selection
|Allows you to select the reference spectrogram to be displayed. The associated node is also shown as "Ref: <nowiki>[</nowiki>input label<nowiki>]</nowiki>: node number". This icon is only active when the spectrogram window is active.

|-
|align = "center"|
[[Image:EVHV_38.png|framed|none]]

|Spatiogram selection
|Allows you to select the spatiogram to be displayed by selecting its associated wavenumber. This icon is only active when the spectrogram window is active.

|}

===Sensors Positions===
To allow the spatiograms to display the sensors, positions need to be defined. This is achieved through the "Sensors Positions Editor" [[Image:EVHV_39.png]] as displayed below.

[[Image:EVHV_40.png|framed|none]]

The node defined in this window needs to be the same ones as the ones used in the input<nowiki>'</nowiki>s configuration.

The sensors position setup can be saved in the project workbook using the SAVE button. It can be reloaded using the LOAD button. When loading the project, its associated setup is loaded as well.

===Displaying Spatiograms===
Spatiograms are displayed by first selecting the measurement using [[Image:EVHV_41.gif]]and selecting the desired wavenumbers using [[Image:EVHV_42.png]]. Spatiograms are all displayed with a blue background to distinguish them specifically from the Spectrograms.

There is a shortcut that allows you to easily change wavenumbers. One should select the spatiogram that is to be modified and use <nowiki>[</nowiki>CTRL<nowiki>]+</nowiki> <nowiki>[</nowiki>up and down arrows<nowiki>]</nowiki>.

In order to fully use the content of the Spatiograms, one should apply the markers on the spatiograms and open the section using the left bottom cross. If the spatiogram contains eMarkers, the bottom left section will show the profiles of the eMarkers.

[[Image:EVHV_43.png|framed|none]]

''Showing all eMarkers contained in Spatiogram 0''

[[Image:EVHV_44.png|framed|none]]

''Selecting all active eMarkers contained in Spatiogram 0''

The order section cursor is also active and can be used to compare the eMarkers section to other order sections.

{|border="2" cellspacing="0" cellpadding="4" width="100%"
|One can grab the cursor in each of the sections to position it at the right frequency or right RPM (or time). The spatiograms will follow the preferences setup for the colormaps (dB by default). It can also be displayed as a 3D graph if desired <nowiki>[</nowiki>Lin by default<nowiki>]</nowiki>. As described earlier, and as the EVHV module is integrated in NVGate, it will benefit of all NVGate standard functions. For more details the NVGate user<nowiki>'</nowiki>s manual should be consulted. 
[[Image:EVHV_45.png|framed|none]]

|align = "center"| ''Order profile cursor''

|}

==Links==
The links group allows you to add any additional dedicated module which would be optionally written as a macro or an external program. It should be placed in the LINKS directory of NVGate. If this is done, it will appear in the list.

* Selection of an external application or macro to be started
* Execute the application
==Help==
The help section allows you to access 2 main features:

[[Image:EVHV_46.png|framed|none]]
This icon allows you to start the EVHV module user<nowiki>'</nowiki>s manual

[[Image:EVHV_47.png|framed|none]]
This icon allows you to display the "About …" information

The EVHV module has been developed thanks to a cooperation between OROS and EOMYS who is specialist in Electromagnetic Noise and Vibration. Credits to EOMYS are given in this About dialog.

[[Image:EVHV_48.gif|framed|none]]

''The About section''