Comparison of 3D polycrtystal magnetic field analysis and distributed magnetic measurement

Abstract

The three-dimensional polycrystal magnetic field analysis method is compared with the distributed magnetic measurement. In the three-dimensional polycrystal magnetic field analysis method, the local coordinates are fixed in each crystal grain and the global coordinates are defined in the polycrystal steel. It is assumed that each crystal grain has the same magnetic characteristics as those of a single crystal grain. When it is applied to the real grain oriented (GO) steel with two crystal grains and with 56 crystal grains in 80-mm × 80-mm, and with 0.35 mm thick, their results of the magnetic flux density distribution and the inclination angle are mainly explained by a angle distribution of the polyctristal steel and seem to be in good agreement. © 2009 The Institute of Electrical Engineers of Japan.