Eddy-current evaluation of three-dimensional defects in a metal plate

被引：36

作者：

Dos Reis, D ^{[1
]}

Lambert, M ^{[1
]}

Lesselier, D ^{[1
]}

机构：

[1] CNRS, Supelec, UPS, Lab Signaux & Syst,Dept Rech & Electromagnet, F-91192 Gif Sur Yvette, France

来源：

INVERSE PROBLEMS | 2002年 / 18卷 / 06期

关键词：

D O I：

10.1088/0266-5611/18/6/325

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

The retrieval of voluminous defects in a non-magnetic metal plate from maps of time-harmonic anomalous magnetic fields in air due to a nearby low-frequency source is considered. The wavefield is modelled from a rigorous full-wave vector domain integral formulation and the inversion is performed via a binary version of the so-called contrast-source, gradient-type technique. The functional analysis is outlined and the efficiency of the approach is discussed in the light of inversion results obtained with synthetic data in three typical defect configurations.

引用

页码：1857 / 1871

页数：15

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