POSSIBILITIES TO IMPROVE THE MEASURING PERFORMANCES OF IMPEDANCES IN A WIDE FREQUENCY RANGE

L. Breniuc, M. Cretu, L. Nita

Abstract

This paper presents our study regarding the possibility of using the nonlinear conversion to measure impedances in a wide range of frequencies. In this case, impedance testing is done by using a multi-frequency signal with the crest factor as low as possible. The non-linear conversion (logarithmic) has as effect measurement error reduction for low levels contained in the measurement signal. From this point of view, non-linear conversion apear to be an alternative to the problem of minimization of the crest factor of the test signal.

Keywords

impedance measurement, nonlinear conversion, Fourier transform, measuring errors

Download

IMEKO-WC-2000-EWADC-P608.pdf

DOI

-

Back to the proceedings