It was analyzed and calculated through final element analysis (FEA) and the profiles of tile magnetic field and corves of magnetization were plotted.

并通过有限元方法对其进行分析计算，绘制了该电机的磁场分布图和磁曲线簇。为该电机进一步分析、改了重要的依据。

Angle this magnet withershins to an angle that is the multiple of 5o, then measure its magnetizing remanent magnetization curves along H direction.

将该半球的左半部分分成18个5o的瓣，按5o间隔逆时针转动，在原磁场方向测量磁剩磁曲线，得到一系列磁剩磁曲线。