Keysight R, Q, U, V, and W11644A 5-1
Performance Verification
Introduction
5
Performance Verification
Introduction
The performance of your calibration kit can only be verified by returning the kit
to Keysight Technologies for recertification. The equipment and calibration
standards required to verify the specifications of the limits of the devices in the
kit have been specially manufactured and are not commercially available.
However, you may check the performance of the terminations in this kit by
following the procedure
“Termination Return Loss Measurement” on page
.
How Keysight Verifies the Devices in Your Kit
Keysight verifies the specifications of these devices as follows:
1.
The residual microwave error terms of the test system are verified with
precision airlines and shorts that are directly traced to the National
Institute of Standards and Technology (NIST). The airline and short
characteristics are developed from mechanical measurements. The
mechanical measurements and material properties are carefully modeled
to give very accurate electrical representation. The mechanical
measurements are then traced to NIST through various plug and ring
gages and other mechanical measurements.
2.
Each calibration device is electrically tested on this system. For the initial
(before sale) testing of the calibration devices, Keysight includes the test
measurement uncertainty as a guardband to guarantee each device meets
the published specification. For recertifications (after sale), no guardband
is used and the measured data is compared directly with the specification
to determine the pass or fail status. The measurement uncertainty for each
device is, however, recorded in the calibration report that accompanies
recertified kits.
These two steps establish a traceable link to NIST for Keysight to the extent
allowed by the institute’s calibration facility. The specifications data provided
for the devices in the kit is traceable to NIST through Keysight Technologies.
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Страница 12: ...1 6 Keysight R Q U V and W11644A General Information When to Calibrate 1...
Страница 24: ...3 8 Keysight R Q U V and W11644A User Information Changing the Wavelength Shim Calibration Definition 3...
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