A simulation of magneto-optical eddy current imaging

被引：34

作者：

Le, Minhhuy ^{[1
]}

Lee, Jinyi ^{[1
]}

Shoji, Tetsuo ^{[2
]}

机构：

[1] Chosun Univ, Dept Control Instrumentat & Robot Engn, Kwangju 501759, South Korea

[2] Tohoku Univ, New Ind Creat Hatchery Ctr, Sendai, Miyagi 9808579, Japan

来源：

NDT & E INTERNATIONAL | 2011年 / 44卷 / 08期

关键词：

NDT; Crack; Faraday effect; Magneto-optics; MO film; Leakage magnetic flux; Eddy current; DIPOLE MODEL; AIRCRAFT;

D O I：

10.1016/j.ndteint.2011.07.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A magnetic or an electrical field applied to a metallic specimen will be distributed according to the properties of the crack in the specimen. Researchers have used the finite element method (FEM) to simulate the distribution of an alternating magnetic field around a crack on a paramagnetic material. However, the simulation using this method becomes complex and time-consuming depending on the degree of accuracy desired. In this paper, we suggest a new, easier method, using dipole model (DM). The simulated results from this new method are verified by comparing them to the experimental results obtained by using Magneto-Optical/Eddy Current Imager system. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：783 / 788

页数：6

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