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swept sine task in specifies the swept-sine parameters.
 | Note Do not modify the swept sine task in values. |
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stimulus channel info contains information about the stimulus channel.
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sensor sensitivity [mV/EU] specifies the sensitivity of the sensor in mV/EU.
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dB reference [EU] is the reference value used when results are computed in decibels.
dB reference [EU] is expressed in the selected engineering units. The typical decibels reference for sound pressure level is 20E–6 Pa. When engineering units is set to Pa, the dB reference [EU] is automatically set to 20E–6 Pa.
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weighting filter specifies if any weighting filter has been applied to the signal. This control does not apply any weighting to the signal. weighting filter should always return linear for calibration measurements.
Use weighting filter only if the acquired signal has been weighted by an external device before it is acquired by a DAQ device. If a weighting filter was applied to the signal before reaching the DAQ device, using weighting filter prevents subsequent VIs from applying any additional weighting to the weighted signal.
| Linear |
| A-weighting |
| B-weighting |
| C-weighting |
| ITU-R 468.4 |
| Dolby |
| CCITT |
| C-message |
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engineering units specifies the engineering units.
If you are using a microphone, select Pa. If you are using an accelerometer, select g, m/s^2, or in/s^2. If the units you need are not listed, select custom and enter the unit to use in custom label.
| custom... | | V | A
| Pa
| N
| g
| m/s^2
| m/s
| m
| mm/s
| mm
| micron/s
| micron
| in/s^2
| in/s
| in
| mil/s
| mil
| rad/s^2
| rad/s
| rad
| strain
|
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custom label is the string used for units when engineering units is set to custom.
If engineering units is not set to custom, this parameter is ignored.
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pregain [dB] is the pregain applied by an external amplifier expressed in decibels. A value of 0 dB specifies no pregain.
Use pregain [dB] only if an external device amplifies the signal before a DAQ device acquires the signal. If you apply any gain with the DAQ device itself, the driver software takes this into account and you do not need to enter the information.
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response channel info contains information about the response channel.
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sensor sensitivity [mV/EU] specifies the sensitivity of the sensor in mV/EU.
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dB reference [EU] is the reference value used when results are computed in decibels.
dB reference [EU] is expressed in the selected engineering units. The typical decibels reference for sound pressure level is 20E–6 Pa. When engineering units is set to Pa, the dB reference [EU] is automatically set to 20E–6 Pa.
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weighting filter specifies if any weighting filter has been applied to the signal. This control does not apply any weighting to the signal. weighting filter should always return linear for calibration measurements.
Use weighting filter only if the acquired signal has been weighted by an external device before it is acquired by a DAQ device. If a weighting filter was applied to the signal before reaching the DAQ device, using weighting filter prevents subsequent VIs from applying any additional weighting to the weighted signal.
| Linear |
| A-weighting |
| B-weighting |
| C-weighting |
| ITU-R 468.4 |
| Dolby |
| CCITT |
| C-message |
|
|
engineering units specifies the engineering units.
If you are using a microphone, select Pa. If you are using an accelerometer, select g, m/s^2, or in/s^2. If the units you need are not listed, select custom and enter the unit to use in custom label.
custom...
| V
| A
| Pa
| N
| g
| m/s^2
| m/s
| m
| mm/s
| mm
| micron/s
| micron
| in/s^2
| in/s
| in
| mil/s
| mil
| rad/s^2
| rad/s
| rad
| strain
|
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custom label is the string used for units when engineering units is set to custom.
If engineering units is not set to custom, this parameter is ignored.
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pregain [dB] is the pregain applied by an external amplifier expressed in decibels. A value of 0 dB specifies no pregain.
Use pregain [dB] only if an external device amplifies the signal before a DAQ device acquires the signal. If you apply any gain with the DAQ device itself, the driver software takes this into account and you do not need to enter the information.
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error in describes error conditions that occur before this VI or function runs.
The default is no error. If an error occurred before this VI or function runs, the VI or function passes the error in value to error out. This VI or function runs normally only if no error occurred before this VI or function runs. If an error occurs while this VI or function runs, it runs normally and sets its own error status in error out. Use the Simple Error Handler or General Error Handler VIs to display the description of the error code. Use exception control to treat what is normally an error as no error or to treat a warning as an error. Use error in and error out to check errors and to specify execution order by wiring error out from one node to error in of the next node.
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status is TRUE (X) if an error occurred before this VI or function ran or FALSE (checkmark) to indicate a warning or that no error occurred before this VI or function ran. The default is FALSE.
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code is the error or warning code. The default is 0.
If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
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source specifies the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning. The default is an empty string.
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swept sine task out contains the swept-sine parameters.
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error out contains error information. If error in indicates that an error occurred before this VI or function ran, error out contains the same error information. Otherwise, it describes the error status that this VI or function produces.
Right-click the error out front panel indicator and select Explain Error from the shortcut menu for more information about the error.
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status is TRUE (X) if an error occurred or FALSE (checkmark) to indicate a warning or that no error occurred.
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code is the error or warning code.
If status is TRUE, code is a nonzero error code. If status is FALSE, code is 0 or a warning code.
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source describes the origin of the error or warning and is, in most cases, the name of the VI or function that produced the error or warning.
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