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