Determination of cavity shape and size in homogeneously magnetized magnets within the framework of a two-dimensional model

V. V. Dyakin; Дякин В. В.; O. V. Kudryashova; Кудряшова О. В.; V. Y. Raevskii; Раевский В. Я.

doi:10.31857/S0130308225070059

Determination of cavity shape and size in homogeneously magnetized magnets within the framework of a two-dimensional model

Authors: Dyakin V.V.¹, Kudryashova O.V.¹, Raevskii V.Y.¹
Affiliations:
1. M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences
Issue: No 7 (2025)
Pages: 43-58
Section: Electromagnetic methods
URL: https://freezetech.ru/0130-3082/article/view/688875
DOI: https://doi.org/10.31857/S0130308225070059
ID: 688875

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Abstract

For extended uniformly magnetized bodies, a practical implementation of a numerical algorithm for solving an integral-differential equation on a function that defines the localization, shape, and size of a cavity in such a magnet based on the measured resulting field outside of it has been investigated. A program in the FORTRAN language that implements the above algorithm has been compiled. As a test and illustrative example of the studied algorithm for a uniformly magnetized cylindrical magnet, the shape, dimensions, and position of a non-coaxial cylindrical cavity in the magnet have been reconstructed.

Keywords

magnetostatics basic equation, inverse problem, homogeneous magnetization, magnetic non-destructive testing

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References

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