soft magnetic materials;
rotational magnetization;
magnetostriction;
D O I:
10.1016/0304-8853(96)00109-6
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
A test system is discussed for measurements of rotational magnetostriction (RMST) of highly grain oriented SiFe. It is characterized by (i) a novel three-phase excited apparatus enhancing the magnetization of 'hard' directions and (ii) averaging over large grain sizes with respect to both the (quasi)homogeneous magnetization and the RMST detection. A strain tensor is calculated by means of the signals from three extra-long strain gauges. Results are presented for Hi-B material.