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The fitting of magnetic hysteresis curves using the Jiles -Atherton model(II)

N. C. POP1,* , O. F. CALTUN1

Affiliation

  1. “Al. I. Cuza” University, Faculty of Physics & Carpath Center, 700506 Iasi Romania

Abstract

This paper presents the way of designing a computer programme made by using Visual Basic, a software which fits ferromagnet experimental hysteresis curves. The application makes use of the equations from Jiles-Atherton model in the differential form. The software itself succeeds in bringing nearer the theoretical and the experimental curves with an average relative deviation which for some materials is under 1%. The parameters which intervene in the model equations are determined with an under 2% precision. By determining them we can draw certain conclusions referring to the magnetic properties of magnetostriction phenomena at a micro level. The programme might be developed and used both to anticipate the magnetic properties of some materials which have not yet been created and to study magnetostriction phenomena..

Keywords

Hysteresis, Jiles-Atherton model, Ferromagnetic, Magnetostriction.

Submitted at: April 7, 2010
Accepted at: April 26, 2010

Citation

N. C. POP, O. F. CALTUN, The fitting of magnetic hysteresis curves using the Jiles -Atherton model(II), Journal of Optoelectronics and Advanced Materials Vol. 12, Iss. 4, pp. 885-891 (2010)