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Scalar hysteresis measurement using FFT

M. KUCZMANN1,*

Affiliation

  1. Laboratory of Electromagnetic Fields, Department of Telecommunications, Széchenyi István University, H-9026, Egyetem tér 1, Győr, Hungary

Abstract

The paper deals with a possible realization of eliminating the effect of noise in scalar hysteresis measurements. The measured signals have been transformed into the frequency domain, and after applying digital filter, the spectrums of the filtered signals have been transformed back to the time domain. The proposed technique results in an accurate noise removal algorithm. The paper illustrates a fast controlling algorithm applying the inverse of the actually measured hysteresis loop, and another proportional one to measure distorted flux pattern. Developing the mentioned algorithms aims the controlling of more complicated phenomena, i.e. measuring the vector hysteresis characteristics..

Keywords

Scalar hysteresis measurements, FFT, inverse characteristic, Controlling the flux.

Submitted at: April 1, 2008
Accepted at: July 1, 2008

Citation

M. KUCZMANN, Scalar hysteresis measurement using FFT, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 7, pp. 1828-1833 (2008)