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    Volume 46, Issue 3 (December 2017)

    A Strategy for Inspection of Cracks in a Thick Structure Using an ECT Probe

    (Received 3 August 2016; accepted 23 January 2017)

    Published Online: 15 December 2017

    CODEN: JTEVAB

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    Abstract

    A strategy for enhancing the inspection precision of cracks in a thick structure is proposed. The key problem of inspection of cracks in a thick structure is the penetration depth of eddy currents. Using lower frequency to drive the probe can overcome it, but too low frequency will cause too small signal to noise ratio and inspection sensitivity. To solve these problems, effects of frequency, inspection mode, and probe type on eddy current testing signals were studied. At last, an effective strategy for inspection of cracks in a thick structure was proposed.

    Author Information:

    Wu, M.
    School of Chemistry and Chemical Engineering, Beifang Univ. of Nationalities, Xixia District, Yinchuan, Ningxia

    Zhang, D.
    School of Electromechanical Engineering, Beifang Univ. of Nationalities, Xixia District, Yinchuan, Ningxia

    Chen, Z.
    State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong Univ., Xi’an,

    Li, Y.
    State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong Univ., Xi’an,


    Stock #: JTE20160402

    ISSN:0090-3973

    DOI: 10.1520/JTE20160402

    Author
    Title A Strategy for Inspection of Cracks in a Thick Structure Using an ECT Probe
    Symposium ,
    Committee E07