Calculation of magnetic leakage field from a surface defect in a linear ferromagnetic material: an analytical approach

被引：23

作者：

Lukyanets, S

Snarskii, A

Shamonin, M

Bakaev, V

机构：

[1] H ROSEN Engn GmbH, D-49811 Lingen, Ems, Germany

[2] Natl Acad Sci Ukraine, Inst Phys, Kiev, Ukraine

[3] Natl Tech Univ Ukraine KPI, UA-03056 Kiev, Ukraine

来源：

NDT & E INTERNATIONAL | 2003年 / 36卷 / 01期

关键词：

magnetic methods; flux leakage; mathematical model; defects;

D O I：

10.1016/S0963-8695(02)00071-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel analytical approach for calculating the magnetic leakage field from surface defects is proposed and demonstrated for the case of a linear ferromagnetic material. The novelty of the theory is that it relates the distribution of induced magnetic charges to the surface shape. An excellent agreement between the analytical and numerical results is shown. The functional relations between different magnetic field components are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：51 / 55

页数：5

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