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1 Zeszyty Naukowe. Elektryka / Politechnika Łódzka

1 2009

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Application of the impedance method for computing the current density inside a 3D conductor for low conductivity Magnetic Induction Tomography

Dekdouk B., Ktistis C., Armitage D. W., Peyton A. J.

Zeszyty Naukowe. Elektryka / Politechnika Łódzka

2009

z. 114

81-86

An algorithm is presented to calculate the current density (J) in a 3D conductor. This is a key part in the forward model for magnetic induction tomography (MIT). The conductor is discretised into a Cartesian grid consisting of a network of interconnected resistors. Circuit analysis e.g. branch current method in combination with sparse matrix techniques were used to solve the system. The method is formulated based for the low conductivity case, such as a weak diffusion effect. The results show the method is capable of producing accurate solution with less memory and computation time requirements than Maxwell, a commercial Finite Element simulator.