A VIRTUAL INSTRUMENT FOR THE CHARACTERIZATION OF NONLINEAR COMPONENTS UNDER NON-SINUSOIDAL CONDITION

L. Ferrigno, C. Liguori, A. Pietrosanto

Abstract

In the paper a new method for the measurement of <i>R</i>, <i>L</i>, <i>C</i> parameters under non-sinusoidal condition is proposed. The measurement procedure, starting from the consideration that for a non-linear SISO system the discrete transfer function H(z) functionally depends on the applied input, uses the estimated z parameters to obtain the best estimate of the equivalent circuit <i>R</i>, <i>L</i>, <i>C</i> parameters of first and second order systems. The method is implemented by a virtual instrument based on IEEE-1155 and IEEE-488 measurement systems. The realized instrument is vatidated with reference to many experimental results obtained in both on-line and off-line tests.

Keywords

RLC measurement, non-sinusoidal condition, parameter identification, non-linear systems

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IMEKO-WC-2000-TC4-P123.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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