摘要
首先推导出方钢纵向磁化初瞬间的退磁场解析表达式 ,据此和磁介质的磁化规律可证明 ,此刻在垂直于磁化场的各截面上将出现不同的净磁荷 。
Analytical expression of the demagnetizing field of a longitudinally magnetized cuboid steel at the initial transient moment of magnetization has been derived. It can be proved that there will appear different net magnetic charges in each cross section of the cuboid perpendicular to the magnetizing field at the moment according to the magnetizing law of magnetic medium. Thus it is concluded that magnetic particle distribution of cuboid steel at the moment isnt stable.
出处
《无损检测》
2000年第3期116-118,共3页
Nondestructive Testing
基金
国家自然科学基金
关键词
纵向磁化
瞬态
方钢
退磁场
净磁荷
Magnetic field Longitudinal magnetization Steel Transient
