The Study of the Distribution of Electrical and Magnetic Properties over the Conductor Cross-Section Using Magnetoimpedance Tomography: Modeling and Experiment

Dmitry A Bukreev; Michael S Derevyanko; Alexey A Moiseev; Andrey V Svalov; Alexander V Semirov

doi:10.3390/s22239512

The Study of the Distribution of Electrical and Magnetic Properties over the Conductor Cross-Section Using Magnetoimpedance Tomography: Modeling and Experiment

Sensors (Basel). 2022 Dec 5;22(23):9512. doi: 10.3390/s22239512.

Authors

Dmitry A Bukreev¹, Michael S Derevyanko¹, Alexey A Moiseev¹, Andrey V Svalov², Alexander V Semirov¹

Affiliations

¹ Department of Physics, Pedagogical Institute, Irkutsk State University, 664003 Irkutsk, Russia.
² Department of Magnetism and Magnetic Nanomaterials, Institute of Natural Sciences and Mathematics, Ural Federal University, 620002 Ekaterinburg, Russia.

Abstract

A description of the method of magnetoimpedance tomography is presented. This method is based on the analysis of the frequency dependences of the impedance obtained in magnetic fields of various strengths. It allows one to determine the distribution of electrical and magnetic properties over the cross-section of the conductor, as well as their dependence on the magnetic field. The article proposes a specific approach to the implementation of the magnetoimpedance tomography method based on computer modeling by the finite element method. The results of this method are presented for composite Cu₉₈Be₂/Fe₂₀Co₆Ni₇₄ wires of the "highly conductive core-magnetically soft coating" type and amorphous rapidly quenched Co₆₆Fe₄Nb_2.5Si_12.5B₁₅ wires.

Keywords: amorphous magnetically soft alloys; computer simulation; finite element method; magnetoimpedance effect.

MeSH terms

Computer Simulation
Electric Conductivity
Electric Impedance
Magnetics*
Tomography*

Grants and funding

22-22-00709/Russian Scientific Foundation