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Difference between revisions of "NVGate Front End"
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* '''High Input sampling''' and '''low Input sampling''': the dynamic input/output sampling frequency (in Samples/second). Changing this will set the bandwidth for all plug-in analyzers and recorders to the following value: Sf / 2.56. | * '''High Input sampling''' and '''low Input sampling''': the dynamic input/output sampling frequency (in Samples/second). Changing this will set the bandwidth for all plug-in analyzers and recorders to the following value: Sf / 2.56. | ||
We | We allow the use of 2 different sampling rates for the dynamic inputs. It gathers inputs with the same physical quantity into groups, maintaining the same sampling into each group. | ||
When inputs are associated with the analysis plug-in, it adjusts its analysis bandwidth to match the inputs | When inputs are associated with the analysis plug-in, it adjusts its analysis bandwidth to match the inputs (except for SOA and overall acoustic plug in). Mixing input bandwidths in one analysis plug-in leads to set its bandwidth to the lowest one. | ||
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* '''15 S/s''' | * '''15 S/s''' | ||
* 12.5 S/s. | * 12.5 S/s. | ||
These values may be adjusted to match the dynamic inputs sampling frequency submultiple. In both | These values may be adjusted to match the dynamic inputs sampling frequency submultiple. In both cases, the 10 Hz multiple (10 to 80 Hz) are rejected by a multi-notch filter | ||
Please note, the following rejectors are used for V1 hardware: | |||
{|border="2" cellspacing="0" cellpadding="4" width="89%" align="center" | {|border="2" cellspacing="0" cellpadding="4" width="89%" align="center" | ||
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* '''Inputs x-y 200V'''<sup>'''*'''</sup>: enables the 200V power supply on the corresponding block of 8 inputs LEMO connectors. There are up to 4 blocks of 8 inputs LEMO depending of the hardware configuration (input 1-8, input 9-16, input 17-24 and input 25-32) | * '''Inputs x-y 200V'''<sup>'''*'''</sup>: enables the 200V power supply on the corresponding block of 8 inputs LEMO connectors. There are up to 4 blocks of 8 inputs LEMO depending of the hardware configuration (input 1-8, input 9-16, input 17-24 and input 25-32) | ||
* '''Check ICP''': run an ICP check. The analyzer checks if an ICP transducer is correctly connected to each input for which the coupling is ICP. The analyzer checks the ICP connection by measuring DC polarization voltage through time averaging and opens a window with the results: | * '''Check ICP''': run an ICP check. The analyzer checks if an ICP transducer is correctly connected to each input for which the coupling is ICP. The analyzer checks the ICP connection by measuring DC polarization voltage through time averaging and opens a window with the results: | ||
* | * Short circuit: DC voltage <nowiki><</nowiki> 4 V (the sensor may be faulty) | ||
* ICP detected: DC voltage between 4 V and 20 V (an ICP sensor is detected) | * ICP detected: DC voltage between 4 V and 20 V (an ICP sensor is detected) | ||
* | * No connection: DC voltage <nowiki>></nowiki> 20 V (no ICP sensor is detected), open circuit | ||
* | * Unstabilized input: DC voltage was not stabilized after 40 s. | ||
* ICP current: Select the current injected in the inputs with active ICP coupling. The standard current is 4 mA. For super small transducer, the 4 mA * 28 V power dissipation increase dramatically the temperature transducer. This may be unsuitable with wax fixation (melting). The 2 mA ICP current allow dividing by 2 the transducer temperature. | * ICP current: Select the current injected in the inputs with active ICP coupling. The standard current is 4 mA. For super small transducer, the 4 mA * 28 V power dissipation increase dramatically the temperature transducer. This may be unsuitable with wax fixation (melting). The 2 mA ICP current allow dividing by 2 the transducer temperature. | ||
* '''Detect TEDS: '''Run a TEDS detection. The analyzer detects if a TEDS transducer is connected to an input with the ICP TEDS coupling. All the characteristics of the transducer are detected and it automatically appears in the transducer database. | * '''Detect TEDS: '''Run a TEDS detection. The analyzer detects if a TEDS transducer is connected to an input with the ICP TEDS coupling. All the characteristics of the transducer are detected and it automatically appears in the transducer database. | ||
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* '''User field 2''': The content of this setting (text) will be displayed in the lower user field of the remote control | * '''User field 2''': The content of this setting (text) will be displayed in the lower user field of the remote control | ||
User<nowiki>’</nowiki>s fields are useful to follows acquisition sequences. The content of the user field 1 &2 can be fulfilled by the sequencer, indicating the operator the point of impact or transducer position for | User<nowiki>’</nowiki>s fields are useful to follows acquisition sequences. The content of the user field 1 & 2 can be fulfilled by the sequencer, indicating the operator the point of impact or transducer position for example. | ||
Please note the remote control is no longer delivered with OROS analyzers. | |||
==Auto-ranging== | ==Auto-ranging== | ||
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* '''Label''': the name of this input (by default Input n, with 1 <nowiki><</nowiki>= n <nowiki><</nowiki>= 320<nowiki>+</nowiki>). The label of each input is used in the result name and in all connection tools. | * '''Label''': the name of this input (by default Input n, with 1 <nowiki><</nowiki>= n <nowiki><</nowiki>= 320<nowiki>+</nowiki>). The label of each input is used in the result name and in all connection tools. | ||
* '''Input Type''': When an XPod is present on one 8 input set, the corresponding inputs can be independently redirected to the Xpod conditioning. The settings bridge is to use for strain gauges conditioning. | * '''Input Type''': When an XPod is present on one 8 input set, the corresponding inputs can be independently redirected to the Xpod conditioning. The settings bridge is to use for strain gauges conditioning. | ||
* '''Component''': the name of the structure to which the sensor is attached.''Hidden/fixed: only visible in the structural mode'' | * '''Component''': the name of the structure to which the sensor is attached. ''Hidden/fixed: only visible in the structural mode.'' | ||
* '''Node''': the name (usually a number) of the point of measurement. | * '''Node''': the name (usually a number) of the point of measurement. | ||
''Hidden/fixed: only visible in the structural mode'' | ''Hidden/fixed: only visible in the structural mode'' | ||
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|}<br clear="all"> | |}<br clear="all"> | ||
* '''Gauge type: '''Full, Half or Quarter bridge mount. The completion resistors are | * '''Gauge type: '''Full, Half or Quarter bridge mount. The completion resistors are included in the X-Pod | ||
''Hidden/fixed: fixed if the input type is standard/bridge.'' | ''Hidden/fixed: fixed if the input type is standard/bridge.'' | ||
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* '''Enable auto-range''': On / Off. It allows the auto-range to change the range pk of this DC input. | * '''Enable auto-range''': On / Off. It allows the auto-range to change the range pk of this DC input. | ||
* '''Tach''': On / Off. Used to activate a tachometer with an RPM level proportional to the DC level | * '''Tach''': On / Off. Used to activate a tachometer with an RPM level proportional to the DC level. | ||
* '''Rotation''': Depending on the way you look at a measured shaft or on the convention you are using, the shaft may be considered as rotating clock wise or counter clock wise. This has noticeable impact on the phase of spectra and orders.<br> | * '''Rotation''': Depending on the way you look at a measured shaft or on the convention you are using, the shaft may be considered as rotating clock wise or counter clock wise. This has noticeable impact on the phase of spectra and orders.<br> | ||
If you put tachometer : ON, [[NVGate_Tachometer#DC_Tach|we advised to read the tachometer part for more details.]] | If you put tachometer : ON, [[NVGate_Tachometer#DC_Tach|we advised to read the tachometer part for more details.]] | ||
==CAN Bus== | ==CAN Bus== | ||
Car Area Network (CAN) bus is great source of data easily collected into vehicles, jet engines and power generation | Car Area Network (CAN) bus is great source of data easily collected into vehicles, jet engines and power generation machinery. This Network provides real-time parameters that can be used to correlate measurements and/or evaluate their influence. As an example, the correlation of noise and vibration with the engine load is a typical application of CAN parameter acquisition. For this application, the engine load is collected from the ECU through the CANBus. | ||
===Hardware=== | ===Hardware=== | ||
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* '''Data Format:''' defines the format of the parameter if this is a "'''Signed Integer'''" or "'''Unsigned Integer'''" | * '''Data Format:''' defines the format of the parameter if this is a "'''Signed Integer'''" or "'''Unsigned Integer'''" | ||
* '''Byte order:''' defines the order of the byte to decode the parameter. This is either "Little endian (Intel)" or "Big endian (Motorola)" | * '''Byte order:''' defines the order of the byte to decode the parameter. This is either "Little endian (Intel)" or "Big endian (Motorola)" | ||
* '''Physical qty''' | * '''Physical qty''': defines the physical quantity of the read value of parameter used to convert to NVGate data''.'' | ||
* '''Unit'''.: the Unit of the read value of parameter used to convert to NVGate data | * '''Unit'''.: the Unit of the read value of parameter used to convert to NVGate data | ||
* '''Scaling factor (LSB):''' define the scale factor conversion of the parameter to convert to NVGate data | * '''Scaling factor (LSB):''' define the scale factor conversion of the parameter to convert to NVGate data | ||
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Optional, depends on hardware options. | Optional, depends on hardware options. | ||
Parametric inputs sampled at Low freq (16 bits) | Parametric inputs sampled at Low freq (16 bits) provide accurate and stable DC measurements. | ||
Contains all the settings related to the DC located on the "aux" part input | Contains all the settings related to the DC located on the "aux" part input | ||
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==Aux. Output== | ==Aux. Output== | ||
Contains all the settings related to the auxiliary output. | Contains all the settings related to the auxiliary output. | ||