Specifications

Chapter 4 95
Preparation for Accurate Measurement
Fixture Compensation
4. Preparation for Accurate Measurement
Measure Fixture Compensation Data
Perform Measurement
Use the following GPIB command to measure the Open/Short fixture compensation data
used to calculate fixture compensation coefficients.
• SENS:CORR2:COLL on page 449
NOTE With a trigger source is set to an external trigger, the above command does not start
measurement of fixture compensation data. After executing this command, prepare a
trigger.
Completion of fixture compensation data measurement can be detected by monitoring
when status bit 7 of the Operation Status Event Register changes. Use one of the following
GPIB commands to monitor the status bit.
• STAT:OPER:PTR on page 492
• STAT:OPER:NTR on page 491
• STAT:OPER:ENAB on page 490
• *SRE on page 283
Enable Fixture Compensation Function
After measuring Open/Short fixture compensation data, use the following GPIB command
to calculate fixture compensation coefficients. This GPIB command automatically enables
the fixture compensation function.
• SENS:CORR2:COLL:SAVE on page 451
NOTE Calculation of fixture compensation coefficients requires Open and Short measurement
data. If the above command is executed before all data measurement is complete, an error
occurs and the command is ignored.
The following GPIB commands disable/enable Open and Short fixture compensation,
respectively.
• SENS:CORR2:COLL:OPEN on page 451
• SENS:CORR2:COLL:SHOR on page 452
NOTE If the above commands are used to enable the Open/Short compensation function before
Open /Short compensation data is measured, an error occurs and the command is ignored.