Imaging Internal Structure with Electromagnetic Induction Tomography


Ma, X., Peyton, A. J., Soleimani, M. and Lionheart, W. R. B., 2006. Imaging Internal Structure with Electromagnetic Induction Tomography. In: Instrumentation and Measurement Technology Conference, 2006. IMTC 2006. Proceedings of the IEEE, 2006-01-01.

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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 Conference or Workshop Items (Paper)
CreatorsMa, X., Peyton, A. J., Soleimani, M. and Lionheart, W. R. B.
Uncontrolled Keywordstomography, electromagnetic screen, nonlinear image reconstruction, finite element simulations, tomography data, imaging internal structure, conductivity distribution, emt, magnetic field, magnetic induction, finite element analysis, sensor coil, electromagnetic induction tomography, internal conductive objects, electromagnetic (em), image reconstruction, electromagnetic induction, linear image reconstruction
DepartmentsFaculty of Engineering & Design > Electronic & Electrical Engineering
ID Code5799


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