The inspection of materials used in aerospace, nuclear or transport industry is a critical issue for the safety of components exposed to stress or/and corrosion. The industry claims for faster, more sensitive, and more flexible techniques. Technologies based on Eddy Current (EC) flexible array probe and magnetic sensor with high sensitivity such as giant magneto-resistance (GMR) could be a good solution to detect surface-breaking flaws in complex shaped surfaces. The CEA has recently developed, with support from the French Institute for Radiological Protection and Nuclear Safety (IRSN), a flexible array probe based on micro-coils etched on Kapton. The probe performances have been assessed for the inspection of reactor residual heat removal pipes, and for aeronautical applications within the framework of the European project VERDICT. The experimental results confirm the very good detection of narrow cracks on plane and curve shaped surfaces. This paper also describes the recent progresses concerning the application of GMR sensors to EC testing, and the results obtained for the detection of small surface breaking flaws.


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    Title :

    Eddy current flexible probes for complex geometries


    Additional title:

    Flexible Wirbelstromsonden für komplexe Geometrien


    Contributors:
    Gilles-Pascaud, C. (author) / Decitre, J.M. (author) / Vacher, F. (author) / Fermon, C. (author) / Pannetier, M. (author) / Cattiaux, G. (author)


    Publication date :

    2006


    Size :

    8 Seiten, 13 Bilder, 6 Quellen





    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




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