Monotonicity based imaging method for time-domain eddy current problems

被引：17

作者：

Su, Z. ^{[1
]}

Ventre, S. ^{[2
]}

Udpa, L. ^{[1
]}

Tamburrino, A. ^{[1
,2
]}

机构：

[1] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA

[2] Univ Cassino & Southern Lazio, Dept Elect & Informat Engn, VG Di Biasio 43, I-03043 Cassino, Italy

来源：

INVERSE PROBLEMS | 2017年 / 33卷 / 12期

关键词：

monotonicity of time constants; imaging; parabolic PDE; eddy current testing; eddy current imaging; RECONSTRUCTION; COMPUTATION; TOMOGRAPHY; INVERSION; SHAPE;

D O I：

10.1088/1361-6420/aa909a

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

Eddy current imaging is an example of inverse problem in nondestructive evaluation for detecting anomalies in conducting materials. This paper introduces the concept of time constants and associated natural modes in eddy current imaging. The monotonicity of time constants is then described and applied to develop a non-iterative imaging method. The proposed imaging method has a low computational cost which makes it suitable for real-time operations. Full 3D numerical examples prove the effectiveness of the method in realistic scenarios.

引用

页数：23

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