Modeling and comparison of three bulk wave EMATs

Shujuan Wang*, Zhichao Li, Lei Kang, Xiaoguang Hu, Xiao Zhang

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    To study the sound field features of bulk wave electromagnetic acoustic transducers (EMATs), a novel modeling method is proposed by combining numerical solutions with analytical calculations. Three commonly used bulk wave EMATs operating on the Lorentz principle have been modeled with consideration of the influence of dynamic magnetic fields generated by EMATs. Simulation and comparison show that double-spiral-coil EMATs have stronger detectability due to their smaller divergence angles and more intensive energy distribution. The accuracy of the established models is verified by experiments.

    Original languageEnglish
    Title of host publicationProceedings
    Subtitle of host publicationIECON 2011 - 37th Annual Conference of the IEEE Industrial Electronics Society
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages2645-2650
    Number of pages6
    ISBN (Electronic)9781612849720
    ISBN (Print)9781612849690
    DOIs
    Publication statusPublished - 2 Jan 2012
    Event37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011 - Melbourne, VIC, Australia
    Duration: 7 Nov 201110 Nov 2011

    Publication series

    NameIECON Proceedings (Industrial Electronics Conference)
    PublisherIEEE
    ISSN (Print)1553-572X

    Conference

    Conference37th Annual Conference of the IEEE Industrial Electronics Society, IECON 2011
    Country/TerritoryAustralia
    CityMelbourne, VIC
    Period7/11/1110/11/11

    Keywords

    • Bulk wave
    • EMATs
    • finite element method
    • Lorentz principle

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