Multiple sensors on pulsed eddy-current detection for 3-D subsurface crack assessment

被引：146

作者：

Tian, GY ^{[1
]}

Sophian, A

Taylor, D

Rudlin, J

机构：

[1] Univ Huddersfield, Huddersfield HD1 3DH, W Yorkshire, England

[2] TWI, Struct Integr Dept, Cambridge CB1 6AL, England

来源：

IEEE SENSORS JOURNAL | 2005年 / 5卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

feature extraction; feature fusion; multiple sensors; normalization; principal component analysis (PCA); pulsed eddy-current sensors;

D O I：

10.1109/JSEN.2004.839129

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 the use of multiple sensors in pulsed eddy-current detection for three-dimensional (3-D) subsurface flaw imaging. A normalization technique has been proposed to eliminate the characteristic variation among the Hall devices used in the probe and lift off effects. A principal component analysis-based feature extraction that provides orthogonal information for multiple sensor fusion has been introduced and investigated. Using the features of multiple projection coefficients, 3-D surface flaws can be measured and reconstructed. The experimental tests have illustrated that the proposed method has delivered more defect information than the conventional peak value and time for pulsed eddy-current sensors.

引用

页码：90 / 96

页数：7

共 25 条

[11] Inverse-signal analysis with PCA [J].

Reddy, VN ;

Miller, WM ;

Mavrovouniotis, ML .

CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS, 1997, 36 (01) :17-30

[12]

RUDLIN JR, 1989, BRIT J NONDESTR TEST, V31, P314

[13]

Smith WC, 2001, LAT AM POLIT SOC, V43, P1

[14] A feature extraction technique based on principal component analysis for pulsed Eddy current NDT [J].

Sophian, A ;

Tian, GY ;

Taylor, D ;

Rudlin, J .

NDT & E INTERNATIONAL, 2003, 36 (01) :37-41

[15]

Sophian A, 2001, INSIGHT, V43, P302

[16]

Tian G. Y., 1998, SENSOR ACTUAT A-PHYS, V58, P153

[17] Pulsed eddy current system for dynamic inspection of defects [J].

Tian, GY ;

Sophian, A ;

Taylor, D ;

Rudlin, J .

INSIGHT, 2004, 46 (05) :256-259

[18] Computational algorithms for linear variable differential transformers (LVDTs) [J].

Tian, GY ;

Zhao, ZX ;

Baines, RW ;

Zhang, N .

IEE PROCEEDINGS-SCIENCE MEASUREMENT AND TECHNOLOGY, 1997, 144 (04) :189-192

[19]

Tian GY, 2001, INSIGHT, V43, P316

[20] A miniaturised sensor for deep hole diameter measurement [J].

Tian, GY ;

Zhao, ZX ;

Baines, RW ;

Corcoran, P .

PRECISION ENGINEERING-JOURNAL OF THE AMERICAN SOCIETY FOR PRECISION ENGINEERING, 1999, 23 (04) :236-242

← 1 2 3 →