Prediction of the asymptotical magnetic polarization tensors for cylindrical samples using the boundary element method

Mingyang Lu, Qian Zhao, Peipei Hu, Wuliang Yin, A J Peyton

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    The magnetic polarization tensor is a frequency-dependent, rotation-invariant and object-specific property of a metallic object. This paper presents an approach to compute the magnetic polarization tensor of a metallic object based on the Boundary Element Method (BEM), which treats the object as a perfect electrical conductor (PEC) and therefore is able to predict the limiting cases where very high frequency and/or high conductivity is assumed. A uniform magnetic field is applied to an object and the scattered field at a certain distance is obtained in the simulations. The magnetic tensor can then be deduced from the scattered field. The simulated results agree well with an analytical solution for spheres and with measured results for a number of cylinders for limiting cases.
    Original languageEnglish
    Title of host publicationhost publication
    Pages1
    Number of pages4
    Publication statusPublished - 2015
    EventIEEE Sensors Applications Symposium - Zadar, Croatia
    Duration: 13 Apr 201515 Apr 2015

    Conference

    ConferenceIEEE Sensors Applications Symposium
    CityZadar, Croatia
    Period13/04/1515/04/15

    Keywords

    • boundary-elements methods
    • conductors (electric)
    • electromagnetic wave polarisation
    • electromagnetic wave scattering
    • magnetic sensors
    • metal detectors

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