The paper presents an identification method of the numerical Preisach hysteresis model, based on the digital acquisition and processing of the magnetic microstructure images, which are obtained by time-resolved magneto-optical microscopy. The statistic Preisach function is computed by the superposition of all pixels, allowing to verify the basic assumptions of Preisach hysteresis model from the experimental point of view.

Keywords: Hysteresis, Preisach model, Magneto-optic microscopy, Magnetooptical Kerr effect (MOKE).