GMR magnetic sensor arrays for nde eddy-current testing

被引：0

作者：

Smith, CH ^{[1
]}

Schneider, RW ^{[1
]}

Dogaru, T ^{[1
]}

Smith, ST ^{[1
]}

机构：

[1] NVE Corp, Adv Technol Grp, Eden Prairie, MN 55344 USA

来源：

REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 22A AND 22B | 2003年 / 20卷

关键词：

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Magnetic sensors based on Giant Magnetoresistance (GMR) and Spin-Dependent Tunneling (SDT) effects have high, frequency-independent sensitivity. The small size and low power consumption of these sensors allow them to be used in multiple-sensor arrays facilitating rapid scanning of an area in a single pass rather than raster scanning. This paper discusses the use of GMR and SDT sensors in NDE testing of surface cracks and features, deep cracks, and hole-edge cracks as well as progress in X-Y GMR sensors and multiple-sensor arrays.

引用

页码：419 / 426

页数：8

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