摘要
在Halbach型永磁体阵列磁场和磁化强度分布研究中,涉及永磁材料内部磁化强度(M)、磁场强度(H)和磁感应强度(B)三者的相互关系函数M(H)、M(B)和B(H)。本文介绍了这些函数的典型实验特征,说明为计算获得永磁体阵列磁体内部自洽的磁场和磁化强度矢量分布,必须使用M(B)函数。强场永磁体阵列材料内部的磁场和磁化强度矢量分布无法直接被进行实验测量,不恰当地使用M(H)和B(H)函数易导致不符合实际情况的磁场和磁化强度分布状态预测。
In the study of magnetic field and magnetization distribution generated by Halbach permanent magnet array, the relationship functions M(H), M(B) and B(H) among magnetization(M), magnetic field strength(H) and magnetic induction(B) are involved. Here the experimental characteristics of these functions are introduced, and it is illustrated that M(B) function should be used in the calculation for obtaining the self consistent magnetization and field distributions inside the permanent magnet array. At the material interior of permanent magnet array, the sophisticated vectorial distributions of field and magnetization may not be experimentally measured, inappropriate use of M(H) and B(H) functions possibly results in the untrue predication of magnetic field and magnetization distributions under the intense self field.
引文
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