Experimental determination of Preisach distribution functions in magnetic cores

This paper deals with the experimental analysis of the hysteresis behaviour of magnetic cores. Either laminated iron cores, or soft ferrite cores are taken into account in the paper. The series of major loops and the related virgin curves have been measured at appropriate very low frequencies for ea ch type of magnetic material, in order to have data with negligible dynamic effects. These data have been used to determine the Preisach distribution functions for each material, as described either in the classical preisach scalar model (CSPM) or in a modified product model, and some notes and comm ents about the shapes found are given. (C) 2000 Elsevier Science B.V. All r ights reserved.