Comparison of Capacitors by Means of a Double-Channel Digitizer

Dušan Agrež

Abstract

In the paper, a comparative method of measurement of the capacitors by measuring the voltages across them and phase angle between is presented. In the analysis of errors the systematic loading effects of the connection and their elimination has been described. The reductions of the systematic and the random errors of sampling and quantization have been performed in the frequency domain. Application of the method is possible with support of the modern digital signal processors and with interpolated DFT to improve the accuracy and speed of the measurement.

Keywords

measurement of capacitors, comparative method, error analysis, loading effect, leakage effect

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IMEKO-TC4-2005-028.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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