PXIe-5185/5186 Calibration Procedure
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© National Instruments
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2.
Select the device you want to calibrate using the Device Configuration dialog box by
selecting
Edit»Device Configuration
.
3.
Launch the Calibration dialog box by selecting
Utility»Self Calibration
.
4.
Click
OK
to begin self-calibration.
NI-SCOPE
To self-calibrate the digitizer programmatically using NI-SCOPE, complete the following steps:
1.
Open a session and obtain a session handle using the niScope Initialize VI.
2.
Self-calibrate the digitizer using niScope Cal Self Calibrate VI.
3.
End the session using the niScope Close VI.
External Calibration
External calibration involves both verification and adjustment. Verification is the process of
testing the device to ensure that it is within certain specifications. You can use verification to
ensure that the adjustment process was successful.
Adjustment is the process of measuring and compensating for device performance to improve
the input accuracy. Performing an adjustment updates the calibration date, resetting the
calibration interval. The device is warranted to meet or exceed its published specifications for
the duration of the calibration interval.
Test System Characterization
The following procedures characterize the test equipment used during verification.
Caution
The connectors on the device under test (DUT) and test equipment are
fragile. Perform the steps in these procedures with care to prevent damaging any
DUTs or test equipment.
Zeroing the Power Sensor
1.
Ensure that the power sensor is not connected to any signals.
2.
Zero the power sensor using the built-in function, according to the power sensor
documentation.
Characterizing Power Splitter Amplitude Imbalance
These procedures characterize the amplitude imbalance of the two output ports of the power
splitter over a range of frequencies. You must perform separate characterizations for the two
different connector types used in verification.
