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    STP722

    Microwave Eddy-Current Experiments with Ferromagnetic Resonance Probes

    Published: 0


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    Abstract

    Experimental results obtained with the ferromagnetic resonance probe described in the companion paper by B. A. Auld are presented for a variety of real and fabricated flaws. Details of the apparatus are given with a brief explanation of the measurement technique used. Particular reference is made to the important property of discrimination between flaw and liftoff signals. An illustration of the edge-discrimination characteristics of the ferromagnetic resonance probe is shown.

    Keywords:

    eddy current testing, ferromagnetic resonance, microwave frequencies, surface cracks, liftoff discrimination, aluminum, titanium alloy, fatigue cracks


    Author Information:

    Auld, BA
    Adjunct professor and research engineer, Stanford University, Stanford, Calif.

    Winslow, DK
    Adjunct professor and research engineer, Stanford University, Stanford, Calif.


    Committee/Subcommittee: E07.07

    DOI: 10.1520/STP27597S