Defect classification using a new feature for pulsed eddy current sensors

被引：176

作者：

Tian, GY ^{[1
]}

Sophian, A ^{[1
]}

机构：

[1] Univ Huddersfield, Sch Comp & Engn, Huddersfield HD1 3DH, W Yorkshire, England

来源：

NDT & E INTERNATIONAL | 2005年 / 38卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

pulsed eddy currents; NDT; time analysis; defect detection and classification;

D O I：

10.1016/j.ndteint.2004.06.001

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The objective of this study is to identify defects such as surface cracks, subsurface defects and metal losses using feature based pulsed eddy current sensors. A new feature, termed as the rising point, related to the propagation time of electromagnetic waves in metallic targets is proposed for defect classification. Experimental studies of the validation, robustness of the new feature of rising time are reported. In addition to other features, defects can be detected and quantified robustly and lift-off can also be derived from the rising time. Conclusion and further work are derived on the basis of the findings. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：77 / 82

页数：6

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