Method for characterization of hysteresis in two dimensions

This paper deals with the problem of identifying the Preisach and threshold functions characterizing a mathematical model of hysteresis based on bista ble relays in two dimensions. The main task in this identification problem is to find the set of experiments that provide sufficient information for t he computation of these functions. It is shown that measurements of the agg regate magnetization made after partial reversals at zero value of the magn etic field provide the required information.