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Calibration and Compensation Function Overview
5
Calibration and Compensation
5.1 Calibration and Compensation Function
Overview
It is necessary to perform open/short/load calibration on the instrument prior to measurement.
In addition, electric length compensation, and open/short compensation are performed when
necessary.
Open/Short/Load Calibration
Connect the 3 standards, open, short and load to the reference surface (terminal) one by one,
and measure respective calibration data. The reference surface is referred to as the “calibration
reference surface”. The cause of errors between the measurement instrument and the calibration
reference surface is eliminated. If this calibration is performed for the terminal connected to a test
sample, other calibration or compensation is not required.
Electric Length Compensation
The electric length is entered as a numerical value between the calibration reference surface on
which open/short/load calibration was performed to the surface where a measurement sample is
connected. The error caused by the phase shift between the calibration reference surface and the
measurement sample connection surface is compensated.
If a test fixture is to be used by connecting to the calibration reference surface of the test head, the
electric length of the fixture is required to be input.
Open/Short Compensation
If a test sample is to be connected to the terminal extended from the calibration reference surface
on which open/short/load calibration was performed, compensation data is measured keeping
the test sample connection terminal in the open state. In addition, the terminal is shorted, and the
compensation data is measured. The cause of errors between the calibration reference surface and
the surface on which open/short compensation was performed is eliminated. This compensation is
required to be performed if the coaxial terminal of the test head is the calibration reference surface.
5 Calibration and Compensation
5
Calibration and Compensation
Summary of Contents for IM7580
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Page 6: ...Contents iv...
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Page 18: ...10 Operating Precautions...
Page 68: ...60 Judging Measurement Results...
Page 230: ...222 External Control I O Settings...
Page 234: ...226 Saving Measurement Conditions Panel Save Function Keyboard type KEY TYPE A a a...
Page 280: ...272 Editing Data Saved in USB Flash Drive...
Page 300: ...292 Measurement Time...
Page 327: ...A15 Initial Settings Table Appx 8 Initial Settings Table 10 9 8 7 6 5 4 3 2 1 Appx Ind...
Page 328: ...A16 Initial Settings Table...
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Page 330: ...A18 Initial Settings Table...
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