Identification of crack depths from eddy current testing signal

被引：23

作者：

Fukutomi, H ^{[1
]}

Huang, HY ^{[1
]}

Takagi, T ^{[1
]}

Tani, J ^{[1
]}

机构：

[1] Inst Fluid Sci, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1998年 / 34卷 / 05期

关键词：

eddy current testing; steam generator tubes; inverse problems; finite element methods; reduced magnetic vector potentials; pre-computed unflawed database approach; meshless crack representation technique; trust region method;

D O I：

10.1109/20.717674

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper demonstrates the identification of crack depths using signals obtained from eddy current testing (ECT), The identification method is based on finite elements with the pre-computed unflawed database approach and a meshless crack representation technique, and parameter estimation in non-linear problems. Four different cracks are estimated by using laboratory data.

引用

页码：2893 / 2896

页数：4

共 11 条

[1]

Badics Z, 1997, STUD APPL ELECTROMAG, V12, P303

[2]

CURTER RG, 1987, TR8712 RIC U DEP MAT

[3]

FUKUTOMI H, IN PRESS ELECTROMAGN

[4]

KAMEARI A, 1990, COMPEL, V9, P230

[5]

Kojima F, 1997, STUD APPL ELECTROMAG, V12, P279

[6]

More J.J., 1983, MATH PROGRAMMING STA, P258

[7] THEORY OF EDDY-CURRENT INVERSION [J].

NORTON, SJ ;

BOWLER, JR .

JOURNAL OF APPLIED PHYSICS, 1993, 73 (02) :501-512

[8] AN EDDY-CURRENT MODEL FOR 3-DIMENSIONAL INVERSION [J].

SABBAGH, HA ;

SABBAGH, LD .

IEEE TRANSACTIONS ON MAGNETICS, 1986, 22 (04) :282-291

[9]

Shimone J, 1996, JSAEM APPL ELECTROM, V5, P12

[10]

Takagi T, 1997, STUD APPL ELECTROMAG, V12, P9

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