Magnetic hysteresis dynamic model: variable frequency parameters adjust

Resumo

It is proposed a dynamical model to describe the magnetic hysteresis with two state variables: the intensity magnetic
field H and the polarization field M; and two non-linear function, the first responsible for the characterization of the anhysteretic
curve f(H*), and the other responsible for the characterization of the Barkhausen noise, g(M). It is made a discussion
about the adhesion properties of this model to observed behavior of the hysteretic magnetic curve, it is also presented a comparison
between the predictions and the experimental data in four different frequencies 5mHz, 50 mHz, 20 Hz and 60 Hz.