Crack detection and recognition using an eddy current differential probe

被引：54

作者：

Chady, T

Enokizono, M

Sikora, R

机构：

[1] Oita Univ, Fac Engn, Oita 8701192, Japan

[2] Tech Univ Szczecin, Dept Theoret Electrotech, PL-70310 Szczecin, Poland

来源：

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

关键词：

eddy current testing; neural network applications; flaw reconstruction;

D O I：

10.1109/20.767393

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 proposes a new eddy current differential sensor and a system for multi-frequency testing of conducting plates. Precise crack imaging was achieved by the use of spectrograms obtained from an eddy-current probe multifrequency response and application of a neural network. Results of experiments with test specimens made of SUS304 showing very good sensitivity and spatial resolution are presented. The possibility of detection of an opposite side 20% crack was also confirmed.

引用

页码：1849 / 1852

页数：4