High frequency eddy-current interaction with cracks

被引：0

作者：

Bowler, J ^{[1
]}

Harfield, N ^{[1
]}

机构：

[1] Univ Surrey, Dept Phys, Guildford GU2 5XH, Surrey, England

来源：

ELECTROMAGNETIC NONDESTRUCTIVE EVALUATION (II) | 1998年 / 14卷

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The eddy-current probe impedance due to a crack at the surface of a conductor has been predicted using the assumption that the skin-depth of the induced current is much smaller that the length and depth of the flaw. This assumption defines the thin-skin regime in which it is possible to predict the probe signals from solutions of the two-dimensional Laplace equation in a domain that corresponds to the crack face. Solutions for semi-elliptical and other curved crack shapes have been found by conformal mapping. Comparison of theoretical predictions and experimental measurements of probe impedance due to simulated cracks show good agreement.

引用

页码：9 / 16

页数：8