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Extraction of hysteresis model parameters from magneto-optical experiments

V. IONITA1,* , G. EPUREANU1, A. E. PATROI2

Affiliation

  1. Dept. of Electrical Engineering, University Politehnica of Bucharest Spl. Independentei 313, RO-060042, Bucharest, ROMANIA
  2. INCDIE ICPE-CA, Spl. Unirii 313, RO-030138, Bucharest, ROMANIA

Abstract

The paper presents an efficient method for the extraction of hysteresis model parameters with physical meaning, starting from the real-time visualization of the magnetic microstructure by magneto-optical Kerr effects. It is shown how the digital acquisition and processing of the obtained images allow to extract the statistical distribution of the switching fields for each image pixel, so the numerical function of the classical Preisach model..

Keywords

Hysteresis model, Classical Preisach model, Magneto-optical microscopy.

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

Citation

V. IONITA, G. EPUREANU, A. E. PATROI, Extraction of hysteresis model parameters from magneto-optical experiments, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 7, pp. 1814-1818 (2008)