APPLICATION OF PREISACH MODEL FOR MODELLING FERRITE-BASED CORES OF SENSORS

Piotr Frydrych – Roman Szewczyk

   Paper presents adaptation of Preisach type model to modelling symmetrical hysteresis minor loops of ferrites. Proposed extended Preisach model takes into account three types of magnetisation mechanism represented by three normal distributions. Model parameters depend on magnetizing field amplitude. Model was verified for different types of ferrites. Results of modelling are confirmed by very good agreement with experimental data. R2 coefficient calculated for model exceeds 99%.

Keywords: Preisach model, soft ferrites

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