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    Volume 46, Issue 1 (December 2017)

    Improvement of Measuring Accuracy for Coating Covered on Conical Steel Shells by Correction of Eddy Current Signals

    (Received 28 January 2016; accepted 21 March 2017)

    Published Online: 07 December 2017

    CODEN: JTEVAB

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    Abstract

    In the petroleum industry and other fields, the thickness of the layer coated on the inner surface of containers is an important indicator to ensure the containers work in a safe or normal state. To acquire an accurate measurement, some appropriate corrections are necessary, especially for the eddy current sensor scanning over an irregular surface. The sensor’s inclining or deviating state might cause much lift-off signal to be mixed in the testing signals, which would lead to an inaccurate result. To solve this problem, this paper analyzed the influencing factors of measuring accuracy for the coating on the conical steel shells. An effective correction method was proposed based on the characteristic of testing signals. Its effectiveness for enhancing the measuring accuracy was confirmed by simulation results.

    Author Information:

    Wu, Meixian
    School of Chemistry and Chemical Engineering, Beifang University of Nationalities, Yinchuan, Ningxia

    Zhang, Dongli
    School of Mechanical and Electrical Engineering, Beifang University of Nationalities, Yinchuan, Ningxia

    Chen, Zhenmao
    State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an,

    Li, Yong
    State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an,


    Stock #: JTE20160055

    ISSN:0090-3973

    DOI: 10.1520/JTE20160055

    Author
    Title Improvement of Measuring Accuracy for Coating Covered on Conical Steel Shells by Correction of Eddy Current Signals
    Symposium ,
    Committee E07