Magnetizing angle dependence of harmonics of magnetic induction and magnetostriction in electrical steel

Abstract The harmonics of magnetic induction and magnetostriction during AC magnetization in electrical steel were measured as a function of the magnetizing angle with respect to [0 0 1] axis, ϕ. The relative amplitudes of odd and even harmonics, respectively, for magnetic induction and magnetostriction decrease with the harmonic order, accompanying the contraction of the amplitudes. The decreasing contraction order of magnetostriction harmonics with ϕ is shown to be an even number multiple of that of magnetic induction. This relationship could provide an easy distinction of harmonics characteristics of magnetostriction from that of magnetic induction.