Experimental-numerical method for identification of weighting function in Preisach model for ferromagnetic materials

The Preisach model weighting function is given by partial derivations of a measured magnetic flux density that leads to high errors. Therefore other methods of the weighing function estimation are used frequently. In order to verify the direct approach the extended experiment was made and data were numerically processed to reduce known errors. It results in model of the hysteresis loop usable in a technical research. The possible errors reduction and further improvements are discussed and recommended.