Keysight Technologies 16197A, Руководство по эксплуатации и обслуживанию

Страница: 35 / 73

Keysight16197A Operation and Service Manual 35
Operation
Performing Fixture Compensation
Performing Fixture Compensation
To ensure accurate measurement, it is necessary to perform fixture
compensation before measurement. For the 16197A, measure the SHORT
compensation and OPEN compensation data. If the DUT size or the measuring
position is changed, perform fixture compensation again.
Measuring the SHORT Compensation Data
With the fixture SHORT state using a supplied shorting bar, measure the
SHORT compensation data.
Step 1. Rotate the pressure adjusting nut to adjust the pressure on the pressure rod
to the same value as used for measurement.
Step 2. Loosen the knobs on the sliding block, and adjust the position of the pressure
unit so that the end of the pressure rod is located at the center of the device
guide frame where the shorting bar will be placed ( Figure 3-13 ).
Figure 3-13 Adjusting the Pressure Unit Position
Step 3. Press the lever to the limit ( Figure 3-14,1 ). With the lever pressed, push in the
latch ( Figure 3-14,2 ), and then release the lever ( Figure 3-14,3 ). The pressure
rod is then fixed at its raised position.
If a temperature change greater than ± 5°C occurs after fixture
compensation, perform the fixture compensation from the beginning.