Design of a pulsed eddy current sensor for detection of defects in aircraft lap-joints

被引：138

作者：

Sophian, A

Tian, GY ^{[1
]}

Taylor, D

Rudlin, J

机构：

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

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

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2002年 / 101卷 / 1-2期

关键词：

pulsed eddy current (PEC) sensor; transient response; magnetic sensor; feature extraction; digital compensation; aircraft NDT;

D O I：

10.1016/S0924-4247(02)00195-4

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 presents a new type of pulsed eddy current (PEC) sensor that has been designed for defect detection in aircraft lap-joint structures. The sensor employs a new excitation circuit that requires no additional signal amplification and the paper also reports compensation techniques that improve the sensing resolution and stability. A new hybrid feature of the peak value in time domain and the maximum frequency magnitude in frequency domain has been investigated. A test rig has been built and some results from aircraft samples are presented. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：92 / 98

页数：7

共 11 条

[1]

Bar-Cohen Y, 2000, MATER EVAL, V58, P141

[2] EDDY-CURRENT NONDESTRUCTIVE TESTING - EXPERIMENT AND NUMERICAL-MODEL FOR THE CONCEPTION AND OPTIMIZATION OF PROBES [J].