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Imaging internal structure with electromagnetic induction tomography.

Ma, X. and Peyton, A. J. and Soleimani, M. and Lionheart, W. R. B. (2007) Imaging internal structure with electromagnetic induction tomography. In: Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE. IEEE, 299 -303. ISBN 0-7803-9359-7

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    Abstract

    A particularly difficult case in electromagnetic induction tomography (EMT) is to image internal structure at the centre of the object space when the material at the outer regions is conductive. This is because the outer material acts as an electromagnetic screen, which partially excludes the magnetic field from the interior space and hence reduces the sensitivity at the centre. In this paper, we propose a methodology to image the conductivity distribution of an annular object when internal conductive objects are present. Finite element simulations were carried out to investigate how sensor coil outputs change with factors such as the size of internal object with regards to the external one. Linear and non-linear image reconstruction methods are applied to the tomographic data that are collected from a newly developed EMT system and image results are given in the paper .

    Item Type: Contribution in Book/Report/Proceedings
    Additional Information: "©2007 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE." "This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder."
    Uncontrolled Keywords: Magnetic induction ; tomography ; electromagnetic (EM) ; image reconstruction
    Subjects: T Technology > TA Engineering (General). Civil engineering (General)
    Departments: Faculty of Science and Technology > Engineering
    ID Code: 34934
    Deposited By: Dr Xiandong Ma
    Deposited On: 15 Dec 2010 09:53
    Refereed?: No
    Published?: Published
    Last Modified: 24 Jan 2014 05:59
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/34934

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