Based on the spatial distribution of magnetic dipole, the equation of the normal component of leakage magnetic field on the tube surface under low-intensity field was derived.
根据磁偶极子空间磁场分布，导出了在外部垂直方向弱磁场下管状工件表面细长缺陷产生的弱磁场法向分量的计算公式。
Through analyzing the air-gap magnetic field, stray loss on the surface of rotor can be worked out and moreover temperature field distribution in rotor can be obtained.
通过对气隙磁场的分析可以计算出转子表面损耗，进而计算出转子的温度场分布。
By using a concise method, the charge distribution on the surface of a thick spherical conducting shell revolving in a homogeneous magnetic field is obtained.
用简单方法求出了在均匀磁场中旋转的导体厚球壳上电荷的分布，证明了在磁场中转动的导体表面电荷分布无普遍公式。
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