Pulsed Eddy-Current Based Giant Magnetoresistive System for the Inspection of Aircraft Structures

被引：107

作者：

Yang, Guang ^{[1
,2
]}

Tamburrino, Antonello ^{[1
,3
]}

Udpa, Lalita ^{[1
]}

Udpa, Satish S. ^{[1
]}

Zeng, Zhiwei ^{[1
,4
]}

Deng, Yiming ^{[1
]}

Que, Peiwen ^{[2
]}

机构：

[1] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA

[2] Shanghai Jiao Tong Univ, Dept Instrument Sci & Engn, Shanghai 200240, Peoples R China

[3] Univ Cassino, EURATOM Assoc, ENEA, CREATE, I-03043 Daeimi, Italy

[4] Xiamen Univ, Dept Aeronaut, Xiamen 361005, Fujian, Peoples R China

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 03期

关键词：

Giant magnetoresistive sensors; nondestructive evaluation; pulsed eddy current; SENSORS; NDE;

D O I：

10.1109/TMAG.2009.2032330

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：

Research in nondestructive evaluation is constantly increasing the sensitivity of detection of small cracks embedded deep in layered aircraft structures. Pulsed eddy-current (PEC) techniques using coil probes have shown considerable promise in detection and characterization of buried cracks in multilayered structures. In this paper, we describe the design and development of a nondestructive inspection system that uses pulse excitation of a planar multiline coil to generate a transient field that is detected via a giant magnetoresistive (GMR) field sensor. An analysis algorithm using features in time and frequency domain processes the experimentally measured signals for automatic detection of small cracks under fasteners in multilayered structures at a depth of up to 10 mm.

引用

页码：910 / 917

页数：8

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