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A New Self-Calibration Method of an LCR Meter for RF Resistance Calibration Using Capacitance Standards

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1 Author(s)
Suzuki, K. ; Meas. Stand. Center, Agilent Technol. Int. Japan, Ltd., Tokyo

This paper describes how to calibrate a four-terminal-pair (4TP) LCR meter at the right (90deg) angle. The LCR meter uses the right angle signal to process a synchronous detector as a vector signal receiver. The right-angle calibration method uses, at a minimum, one variable-phase signal generator (SG) and a phase shift circuit. The SG does not require a precision right angle, but it does need good phase stability. The described phase shifter provides the required differential phase of nearly the right angle. As a result, the right-angle phase deviation of the LCR meter is better than 65 murad (0.223') with 37-murad (0.127') uncertainty at 10 MHz. This method is also applicable to the phase calibration of a vector network analyzer.

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:58 ,  Issue: 4 )

Date of Publication:

April 2009

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