Finite element analysis of coupled electromagnetic acoustic systems

被引：36

作者：

Kaltenbacher, M ^{[1
]}

Ettinger, K

Lerch, R

Tittmann, B

机构：

[1] Univ Linz, Inst Elect Measurement Technol, A-4040 Linz, Austria

[2] Penn State Univ, University Pk, PA 16802 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1999年 / 35卷 / 03期

关键词：

acoustoelectric transducers; finite element methods; magnetomechanical effects;

D O I：

10.1109/20.767297

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) are used for nondestructive testing of electric conductive materials. In this paper we introduce an efficient numerical calculation scheme, based on the finite element method, which is capable of simulating both the transmission and detection of ultrasonic waves by EMATs. Therefore, the generation of waves by electromagnetic forces (transmitting case), as well as the induced voltage resulting from the magnetic field of eddy currents, which are generated by the waves in a constant magnetic field, can be calculated. 2D computer simulations and measured data obtained with a pair of matched plate wave EMATs will be presented to show the applicability of the developed calculation scheme.

引用

页码：1610 / 1613

页数：4

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