Abstract

The method of reconstructing the topography of defects in a ferromagnet in a normal magnetization field is considered. It is shown that with such magnetization the surface of the soft ferromagnetic is an equipotential surface. An approximation is proposed that allows one to obtain the topography of a defect from the results of measuring three components of the magnetic field at a small distance from the defect. The reconstruction accuracy is estimated based on the results of calculating the field due to the defect by the method of finite elements and reconstructing the defect topography using the approximation proposed.

中文翻译：

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在正常磁场中重建铁磁体表面缺陷的形貌

摘要

考虑了在正常磁场中重建铁磁体中缺陷形貌的方法。结果表明，在这种磁化作用下，软铁磁体的表面是等势面。提出了一种近似方法，它允许人们从距缺陷一小段距离处测量磁场的三个分量的结果中获得缺陷的形貌。重建精度是基于通过有限元方法计算缺陷场和使用所提出的近似重建缺陷地形的结果来估计的。