MAGNETIC FIELD ANALYSIS FOR ANISOTROPIC MATERIALS BY USING MAGNETIC RELUCTIVITY TENSOR METHOD

Abstract

This paper deals with the numerical expression of magnetic properties on the silicon steel sheet. In conventional magnetic field analysis, the magnetic properties of the arbitrary direction have been modelled by magnetic properties of easy axis and its perpendicular direction. Such kind of modelling of the material cannot exactly express the phase differ- ence between the magnetic flux density B and the magnetic field intensity H. Therefore we have measured the relationship between Band H as vector quantities under alternat- ing and rotating flux condition by using two-dimensional magnetic measuring apparatus. Its properties are expressed by the magnetic reluctivity tensor, which is calculated by measured relationship between Band H.