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NI PXI-5404 Calibration Procedure
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© National Instruments
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7
You can then use the
niArbCal
functions in your code and look up the functions, parameters,
and constants in the Object Browser.
Verification
This section provides step-by-step instructions for verifying the NI 5404 specifications.
Verification determines whether the module is performing within its specifications prior to
adjustment. Verification and adjustment together comprise a complete calibration. To verify that
the NI 5404 still meets its specifications, you must use NI-FGEN to control the NI 5404 module.
The following steps describe the code you use to generate the appropriate signals, as well as the
NI-FGEN function calls you make to verify specifications. The code varies depending on which
API you use: LabVIEW, LabWindows/CVI, or Visual Basic. The examples shown in this
section use LabWindows/CVI code, but LabVIEW has a corresponding VI for each function.
You can verify the following specifications for NI 5404 modules:
•
SINE out amplitude accuracy
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Frequency accuracy
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CLOCK out duty cycle accuracy
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SINE out amplitude passband flatness
Refer to Table 1 for information concerning which instrument to use for each characteristic.
The verification procedure for each of these specifications includes setting up, programming,
and cleaning up.