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Conference Papers Year : 2014

Development of eddy current probes based on magnetoresistive sensors arrays

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Abstract

Eddy Current Technique is a powerful method for detection of surface notches and of buried flaws during inspection of metallic parts. Recent EC array probes have demonstrated a fast and efficient control of large surfaces. Nevertheless, when the size of flaws decreases or the defect is rather deep, traditional winding coil probes turn out to be useless. Magnetoresistive sensors present the advantages of flat frequency response and micron size. These sensors are hence very attractive for the detection of buried defects that require low frequencies because of skin depth effect. An optimization of the probe with magnetoresistive sensors as receivers has been made by simulations using CIVA software and finite elements methods with OPERA. EC probes for buried flaw detection have been designed. Experimental results have been compared with simulations.
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Dates and versions

cea-01820687 , version 1 (22-06-2018)

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N. Sergeeva-Chollet, J.-M. Decitre, C. Fermon, M. Pelkner, V. Reimund, et al.. Development of eddy current probes based on magnetoresistive sensors arrays. 40TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION: Incorporating the 10th International Conference on Barkhausen Noise and Micromagnetic Testing, Jul 2013, Baltimore, MD, United States. pp.1374-1379, ⟨10.1063/1.4864981⟩. ⟨cea-01820687⟩
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