Application of GMR line sensor to eddy current testing

Y Kataoka,O Shinoura,H Yamagishi,H Wakiwaka

doi:10.1109/intmag.2003.1230368

Application of GMR line sensor to eddy current testing

Y Kataoka, O Shinoura + Show 2 more

https://doi.org/10.1109/intmag.2003.1230368

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Publication Date: Nov 3, 2003

Citations: 3

Affiliation: Nagano University, Shinshu University, Ōtani University, TDK (Japan)

#Giant Magnetoresistive Element #Giant Magnetoresistive + Show 8 more

Abstract
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Abstract

In this paper, a [NiFeCo/Cu] multilayer type giant magnetoresistive (GMR) element with the shape of a multi-arc is used. This GMR element has an omni-directional magnetic sensitivity in plane (x-y plane). Magnetic field from all directions in plane can be detected with equal sensitivity using this GMR line sensor. In the leakage flux magnetic testing, this sensor can visualize simultaneously a shape of the defect by single scanning.

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