3-D finite-element analysis of eddy-current evaluation of curved plates

被引：2
|
作者：
Le Bihan, Y [1 ]
机构：
[1] Ecole Super Elect, Lab Genie Elect Paris, Gif Sur Yvette, France
[2] Ecole Normal Super Cachan, Lab Elect Signaux & Robot, Cachan, France
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 02期
关键词：
eddy-currents testing; finite-element methods; neural networks; thickness measurement;
D O I：
10.1109/20.996297
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：
The eddy current method allows thickness evaluation of conductive plates. However, EC measurements are sensitive to multiple parameters such as the sensor liftoff and the plate curvature. In this paper, the plate curvature effect is studied using a three-dimensional finite-element method, and it is shown that the curvature effect cannot be corrected by a conventional liftoff effect correction. Consequently the curvature effect has to be specifically corrected in the measurement inversion. A correction method using bifrequency measurements is implemented.
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页码：1161 / 1164
页数：4
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