Simple analysis and use of preisach model for ferromagnetic materials

Because of hysteresis the perfect modeling of ferromagnetic materials is difficult. The general purpose of Preisach model was applied in this area. The main problem is to determine the weighting function from measurement of hysteresis loops. Another approach, based on the method of trials and errors, was used. According to the nature of a material, the weighting function was searched in the form of normal distribution with constant background. Only several parameters should be found by the best fit with experimental data. The agreement with experiment is acceptable, especially for higher excitations. The numerical model can be used for semi quantitative analysis or simulation of electrical or electronic devices with a ferromagnetic core.