can be achieved using the recommended method. It is not a replacement for the user
uncertainty analysis that takes into consideration the conditions and practices of the individual
user.
Calibration Overview
Install the device and configure it in NI Measurement & Automation Explorer (MAX) before
calibrating.
Calibration includes the following steps:
1.
Self-calibration—Adjust the self-calibration constants of the device.
2.
Test system characterization—Characterize the amplitude balance of the output ports on
your power splitter and amplitude loss through your power splitter.
The results of this step are used as a correction in the following procedures:
•
Verifying 50 Ω Passband Amplitude Flatness and Bandwidth
•
Verifying 1 MΩ Passband Amplitude Flatness and Bandwidth
•
Adjusting 50 Ω Passband Amplitude Flatness and Bandwidth
•
Adjusting 1 MΩ Passband Amplitude Flatness and Bandwidth
3.
Verification—Verify the existing operation of the device. This step confirms whether the
device is operating within the published specification prior to adjustment.
4.
Adjustment—Perform an external adjustment of the calibration constants of the device.
The adjustment procedure automatically stores the calibration date and temperature in the
nonvolatile memory to allow traceability.
5.
Re-verification—Repeat the Verification procedure to ensure that the device is operating
within the published specifications after adjustment.
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 great 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.
PXIe-5164 Calibration Procedure
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© National Instruments
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