Abstract
A joint capacitive and magnetic tomography (CMT) is considered. Current flow in a semi-infinite 3D medium is induced by application of current between electrodes located distantly from an examined medium. These electrodes are also used to measure potential distribution at a border of the medium. Current distribution inside the medium contributes to magnetic flux measured by coils, also located distantly from the medium. A finite element model for forward problem has been developed. It is a sphere of a radius appropriately chosen. It is filled in a half with air and in a half with examined medium. Each half is described by complex conductivity. Electrodes and coils are immersed in the half containing air. A surface of the sphere is connected to ground potential. This model has been used to calculated potential distribution inside the examined medium. Aside from FE model an equivalent circuit containing resistances and capacitances, both frequency dependent and independent, has been developed and used to examine properties of the proposed technique in the frequency domain (PSpice software).
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Janczulewicz, A., Wtorek, J. (2007). Properties of CMT studies by means of FEM and Spice model. In: Scharfetter, H., Merwa, R. (eds) 13th International Conference on Electrical Bioimpedance and the 8th Conference on Electrical Impedance Tomography. IFMBE Proceedings, vol 17. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73841-1_16
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DOI: https://doi.org/10.1007/978-3-540-73841-1_16
Publisher Name: Springer, Berlin, Heidelberg
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