NUMERICAL ASPECTS OF THE SECONDARY MAGNETIC FIELD MAPPING IN MAGNETIC INDUCTION TOMOGRAPHY


Abstract

Magnetic Induction Tomography (MIT) belongs to the noncontact electromagnetic imaging techniques. This paper focuses on determination of a secondary magnetic field map calculated with the help of the Biot-Savart law around the low-conductivity object. The inclusions of various shapes and different electrical conductivities values and two measurement planes are considered. In each case the objects’ single maximal cell volume with assumed uniform eddy current density has been determined. In order to keep the relative error below 1% the object should be divided in most cases into elements with maximal cell volume equal to 0.244 mm3 for yz − plane, and 0.03 mm3 for xy − plane.


Keywords

magnetic induction tomography; eddy currents; forward problem; electrical conductivity

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Published : 2017-09-30


Szuflitowska, B., Ziolkowski, M., & Stawicki, K. (2017). NUMERICAL ASPECTS OF THE SECONDARY MAGNETIC FIELD MAPPING IN MAGNETIC INDUCTION TOMOGRAPHY . Informatyka, Automatyka, Pomiary W Gospodarce I Ochronie Środowiska, 7(3), 11-14. https://doi.org/10.5604/01.3001.0010.5206

Beata Szuflitowska  beata.szuflitowska@zut.edu.pl
West Pomeranian University of Technology, Szczecin  Poland
Marcin Ziolkowski 
West Pomeranian University of Technology, Szczecin  Poland
Krzysztof Stawicki 
West Pomeranian University of Technology, Szczecin  Poland