Accelerated Impedance Spectrum Measurement via Multisine Perturbation and Digital Filter Banks

Marek Niedostatkiewicz, Romuald Zielonko

Abstract

The paper presents accelerated impedance spectrum measurement method, oriented for measuring the quality of anticorrosion coating, modelled by a linear equivalent circuit. The method is based on applying multisine stimulation signal. Both stimulation and object response are analysed in frequency domain by digital filter bank. The theoretical description of method and a proposition of measurement methodology are presented. The simulation results are discussed, concerning spectrum calculation error and acceleration of measurements for several shape-designed multisine signals.

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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