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Remote Field Eddy Current Inspection of Metallic Tubes Using GMR Sensors

Ribeiro, A. L. ; Ramos, H. ; Pasadas, D. ; Rocha, T.

Remote Field Eddy Current Inspection of Metallic Tubes Using GMR Sensors, Proc IEEE Instrumentation and Measurement Technology Conf., Minneapolis, United States, Vol. 1, pp. 1 - 4, April, 2013.

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Abstract
This article describes the inspection of metallic tubes
using the remote field eddy current method. The excellent
performance of giant magneto-resistance sensors in what
concerns sensitivity, linearity, large bandwidth and direct assess
to the magnetic field makes it a good choice for defect inspection
in the applications where the measurement of low amplitude and
low frequency magnetic fields is necessary. Experimental results
with an artificial machined defect were included in the paper.