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Difference between revisions of "NVGate Output Signals"
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English edits. Page timed out on me before I could save it. So I copied all of the code, logged back in, pasted it and saved it. So if it shows that I have change this whole document that is why.
m (English edits. Page timed out on me before I could save it. So I copied all of the code, logged back in, pasted it and saved it. So if it shows that I have change this whole document that is why.) |
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This module generates multiple signals such as fixed sinus, random noises, and swept sinus. | This module generates multiple signals such as fixed sinus, random noises, and swept sinus. You can have up to 6 outputs channels with OROS analyzers. | ||
==Connect== | ==Connect== | ||
[[Image:Reports_Tools_Ribbons_344.png|framed|none]] | [[Image:Reports_Tools_Ribbons_344.png|framed|none]] | ||
On the tab [[NVGate_Ribbons:_Acquisition_Tab|acquisition]], Output can | On the tab [[NVGate_Ribbons:_Acquisition_Tab|acquisition]], Output can generate a signal on the front-end outputs (generators) | ||
The left button (''signals'') allows selecting the signal type from the list and connecting it to the available outputs (1 to 6) .The | The left button (''signals'') allows selecting the signal type from the list and connecting it to the available outputs (1 to 6) .The other buttons open the signal settings and manage the generators activity. | ||
*[[Image:Reports_Tools_Ribbons_345.png|Reports_Tools_Ribbons_345.png]] ''Signals:'' Shows the list of available signals and let the users connect it to the outputs. You can easily connect signal with a "drag and drop" on the windows below. | *[[Image:Reports_Tools_Ribbons_345.png|Reports_Tools_Ribbons_345.png]] ''Signals:'' Shows the list of available signals and let the users connect it to the outputs. You can easily connect signal with a "drag and drop" on the windows below. | ||
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* '''Label''': the name of this Output (by default Output n, with 1 <nowiki><</nowiki>= n <nowiki><</nowiki>= 2). The label of each output is used in the result name and in all connection tools. | * '''Label''': the name of this Output (by default Output n, with 1 <nowiki><</nowiki>= n <nowiki><</nowiki>= 2). The label of each output is used in the result name and in all connection tools. | ||
* '''Source''': the input signal of the output (NONE by default). The input signal can be any dynamic input of the Front-end (in the On-line mode) or any signal generated by the output signals resource (in the On-line mode) or any track of the Player (recorded from inputs). | * '''Source''': the input signal of the output (NONE by default). The input signal can be any dynamic input of the Front-end (in the On-line mode) or any signal generated by the output signals resource (in the On-line mode) or any track of the Player (recorded from inputs). | ||
* '''Applied ''''''filter''': the filter applied to this output. The list of filters applicable to the outputs is defined in the Filter module, by choosing Apply to= All. | * '''Applied ''''''filter''': the filter applied to this output. The list of filters applicable to the outputs is defined in the Filter module, by choosing Apply to = All. | ||
* '''Clipping''': the amplitude limitation of the output signal (from 1 mV to 10 V). | * '''Clipping''': the amplitude limitation of the output signal (from 1 mV to 10 V). | ||
* '''Gain''': This setting can be displayed in dB. It is the gain applied to the output signal. | * '''Gain''': This setting can be displayed in dB. It is the gain applied to the output signal. | ||
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* [[Image:Reports_Tools_Ribbons_346.png]] ''Sine:'' Opens the pure sine properties dialog for adjustment. | * [[Image:Reports_Tools_Ribbons_346.png]] ''Sine:'' Opens the pure sine properties dialog for adjustment. | ||
Used to generate and configure up to 6 fixed sinus. A sinusoidal signal is generated with the frequency specified in the sine '''Frequency''' field. The frequency corresponds to one of the analysis bands. This type of signal is used for measuring the amount of distortion in a system | Used to generate and configure up to 6 fixed sinus. A sinusoidal signal is generated with the frequency specified in the sine '''Frequency''' field. The frequency corresponds to one of the analysis bands. This type of signal is used for measuring the amount of distortion in a system for example. The amplitude of the signal can be changed using the '''Level''' settings. | ||
[[Image:Resources_output_02.png|framed|none]] | [[Image:Resources_output_02.png|framed|none]] | ||
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'''Burst setting''' in Multisine generators will shorten time during which output signal is active despite signal block being of the same length. | '''Burst setting''' in Multisine generators will shorten the time during which the output signal is active despite the signal block being of the same length. | ||
All bandwidth frequencies are present in each burst but may not be complete cycles as block period is truncated. Two bursts being identical (respectively fixed or random phase) they are 100% correlated. Two | All bandwidth frequencies are present in each burst but may not be complete cycles as block period is truncated. Two bursts being identical (respectively fixed or random phase) they are 100% correlated. Two random bursts from two separate generators will not be correlated signals. | ||
===Random noise=== | ===Random noise=== | ||
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If you change the amplitude or the frequency of the generated signal, there will be a stabilization time, and you will have to generate an event when the signal is stabilized. | If you change the amplitude or the frequency of the generated signal, there will be a stabilization time, and you will have to generate an event when the signal is stabilized. | ||
In | In these 3 modes, each time the generator stops on a frequency; | ||
1. | 1. At the beginning (amplitude increase until the first frequency), | ||
2. | 2. At a new step (at the end of stabilization time), or in <nowiki>’</nowiki>pure tone<nowiki>’</nowiki> or <nowiki>’</nowiki>swept sine<nowiki>’</nowiki> pause mode when it reaches the target frequency; the generator sends a stabilized event, after being stabilized (amplitude and frequency). | ||
3. In <nowiki>’</nowiki>Free run<nowiki>’</nowiki>, if the generator is already stabilized at the run event, then a stabilized event is generated at this moment. | 3. In <nowiki>’</nowiki>Free run<nowiki>’</nowiki>, if the generator is already stabilized at the run event, then a stabilized event is generated at this moment. | ||
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|}<br clear="all"> | |}<br clear="all"> | ||
* '''Pause''': On / Off. When Pause is active, the frequency sweeping is halted | * '''Pause''': On / Off. When Pause is active, the frequency sweeping is halted when there is only one frequency generated. This frequency is now called "Target frequency". You can modify this frequency value to another target so the frequency will sweep to the new target. | ||
[[Image:Resources_output_16.png|framed|none]] | [[Image:Resources_output_16.png|framed|none]] | ||
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|- | |- | ||
|Lin | |Lin | ||
|The Sweep speed is constant | |The Sweep speed is constant. | ||
|- | |- | ||
|Log | |Log | ||
|The Sweep speed increases exponentially when the frequency increase is linear | |The Sweep speed increases exponentially when the frequency increase is linear. | ||
|}<br clear="all"> | |}<br clear="all"> | ||
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Back to the roots of vibration analysis: Everybody knows that our ears and brain is the best instrument to feel and interpret vibration signals. This is also why we take so much care in removing these NVH signals from our machines, vehicles and appliances. The audio playback of vibration (or any other) signal allows the user to "listen in" on what your OROS analyzer is "hearing". | Back to the roots of vibration analysis: Everybody knows that our ears and brain is the best instrument to feel and interpret vibration signals. This is also why we take so much care in removing these NVH signals from our machines, vehicles and appliances. The audio playback of vibration (or any other) signal allows the user to "listen in" on what your OROS analyzer is "hearing". | ||
Connect input feature | Connect input feature allows a user to play input channels on an output. This allows the user to listen during measurement with an headphone on the output. | ||
====Monitor channels : Hot Swap ==== | ====Monitor channels : Hot Swap ==== | ||
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[[Image:Release_note_21.png|framed|none]] | [[Image:Release_note_21.png|framed|none]] | ||
Then you can add any front-end input to the monitor channel. The selected input signal will replicate (play) on the output. You can swap | Then you can add any front-end input to the monitor channel. The selected input signal will replicate (play) on the output. You can swap from one input to another at any time including during the run and signal recording. | ||
NB: Remember to switch the output impedance to 600 Ω for better listening quality. | NB: Remember to switch the output impedance to 600 Ω for better listening quality. | ||
====Play-Back on PC speaker==== | ====Play-Back on PC speaker==== | ||
If you need to listen a signal already | If you need to listen a signal already recorded, do not use an output channel. We advice to use the playback on PC speaker defined here: | ||
From any of the previous configurations, the recorded signal | From any of the previous configurations, the recorded signal can be listened to on PC speakers. | ||
[[File:Player_playback.png|none]] | [[File:Player_playback.png|none]] | ||
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==Player: create and play any signal== | ==Player: create and play any signal== | ||
You can play a signal already | You can play a signal already recorded with an OROS analyzer, or any signal imported into NVgate. | ||
You can put the signal in player (even in connected mode) | You can put the signal in the player (even in connected mode) allowing the signal to be played on an ouptut channel. | ||
==== | ====Example : playing a triangle signal on analyzer output ==== | ||
• Generate a triangular signal with an application ([https://fr.mathworks.com/?requestedDomain= Matlab],…) or an online site (example: http://onlinetonegenerator.com/);<br> | • Generate a triangular signal with an application ([https://fr.mathworks.com/?requestedDomain= Matlab],…) or an online site (example: http://onlinetonegenerator.com/);<br> | ||
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===Play-Back on PC speaker=== | ===Play-Back on PC speaker=== | ||
If you need to listen a signal already | If you need to listen a signal already recorded, we advice to use the playback on PC speaker defined here: | ||
From any of the previous configurations, the recorded signal | From any of the previous configurations, the recorded signal can be listened to on PC speakers. | ||
[[File:Player_playback.png|none]] | [[File:Player_playback.png|none]] | ||
Click on [[Image:Player_connection_wizard_06.png]] in the active window. The button stops the play back at any time. A mobile cursor (blue) localizes the played back signal part in the signal window. | Click on [[Image:Player_connection_wizard_06.png]] in the active window. The button stops the play back at any time. A mobile cursor (blue) localizes the played back signal part in the signal window. | ||