Magnetization of a nonlinear ferromagnetic semi-infinite plate by a short coil, in the presence of eddy-currents

R. Rabinovici; B. Z. Kaplan

doi:10.1109/TMAG.1985.1063913

Magnetization of a nonlinear ferromagnetic semi-infinite plate by a short coil, in the presence of eddy-currents

R. Rabinovici, B. Z. Kaplan

Department of Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The paper deals with the evaluation of magnetic fields in a system of a relatively long-conductive ferromagnetic-strip with nonlinear characteristic. The field is produced by an a.c. excited relatively short coil wound around the strip. The investigated system is similar to a magnetic field sensor system (described recently) which employs nonlinear eddy current effects in the sensing process. The analysis in the paper depends on linearization of the magnetic vector-potential equations by assuming that all field components are sinusoidal everywhere, and by imposing an appropriate change of 11 with the material depth. The linearization process enables the integration of the field equations by Fourier transform. The evaluated results compare favorably to experimental results.

Original language	English
Pages (from-to)	1859-1861
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	21
Issue number	5
DOIs	https://doi.org/10.1109/TMAG.1985.1063913
State	Published - 1 Jan 1985

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.1985.1063913

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abstract = "The paper deals with the evaluation of magnetic fields in a system of a relatively long-conductive ferromagnetic-strip with nonlinear characteristic. The field is produced by an a.c. excited relatively short coil wound around the strip. The investigated system is similar to a magnetic field sensor system (described recently) which employs nonlinear eddy current effects in the sensing process. The analysis in the paper depends on linearization of the magnetic vector-potential equations by assuming that all field components are sinusoidal everywhere, and by imposing an appropriate change of 11 with the material depth. The linearization process enables the integration of the field equations by Fourier transform. The evaluated results compare favorably to experimental results.",

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N2 - The paper deals with the evaluation of magnetic fields in a system of a relatively long-conductive ferromagnetic-strip with nonlinear characteristic. The field is produced by an a.c. excited relatively short coil wound around the strip. The investigated system is similar to a magnetic field sensor system (described recently) which employs nonlinear eddy current effects in the sensing process. The analysis in the paper depends on linearization of the magnetic vector-potential equations by assuming that all field components are sinusoidal everywhere, and by imposing an appropriate change of 11 with the material depth. The linearization process enables the integration of the field equations by Fourier transform. The evaluated results compare favorably to experimental results.

AB - The paper deals with the evaluation of magnetic fields in a system of a relatively long-conductive ferromagnetic-strip with nonlinear characteristic. The field is produced by an a.c. excited relatively short coil wound around the strip. The investigated system is similar to a magnetic field sensor system (described recently) which employs nonlinear eddy current effects in the sensing process. The analysis in the paper depends on linearization of the magnetic vector-potential equations by assuming that all field components are sinusoidal everywhere, and by imposing an appropriate change of 11 with the material depth. The linearization process enables the integration of the field equations by Fourier transform. The evaluated results compare favorably to experimental results.

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Magnetization of a nonlinear ferromagnetic semi-infinite plate by a short coil, in the presence of eddy-currents

Abstract

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