Improved finite element method for EMAT analysis and design

被引：45

作者：

Jafari-Shapoorabadi, R ^{[1
]}

Konrad, A

Sinclair, AN

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

[2] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON M5S 3G4, Canada

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2001年 / 37卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

EMAT; finite element method; NDE; time domain analysis;

D O I：

10.1109/20.951317

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：

Electromagnetic acoustic transducers (EMATs) operating in transmitting mode are examined. Two different finite element formulations, derived for two different definitions of source current density, are compared in order to show the importance of skin and proximity effects. An EMAT consisting of six source conductors is modeled as an example. Results obtained with an earlier method are compared with new FEM results at two different frequencies. The effect of lift-off and distance between conductors is investigated.

引用

页码：2821 / 2823

页数：3

共 3 条

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[2] Finite element analysis of coupled electromagnetic acoustic systems [J].

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IEEE TRANSACTIONS ON MAGNETICS, 1990, 26 (01) :299-307

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