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    Application of Reference Standards for Control of Eddy-Current Test Equipment

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    Within the German Standard Organization a working group was engaged with the task of investigating and specifying methods for testing the essential properties of eddy-current test equipment for application to the inspection of tubes with feed-through coil systems. For this purpose several reference standards are required; these contain artificial defects such as holes, longitudinal and transverse notches, and milled-off segments. Several materials are recommended for use in the usual frequency ranges.


    eddy current test equipment, tube inspection, feed-through coil systems, reference standards, artificial defect, drilled hole, notch, defect length, defect resolution, end effect, frequency range

    Author Information:

    Wittig, G
    Bundesanstalt für Materialprüfung, Berlin,

    Beller, M
    Wieland-Werke, Ulm,

    Leider, A
    Fa. Schmöhle, Menden,

    Stumm, W
    Institut Dr. Förster, Reutlingen,

    Weber, HP
    Mannesmann-Forschungsinstitut, Duisburg,

    Committee/Subcommittee: E07.07

    DOI: 10.1520/STP27579S