Thermal Compensation Model of Magnetic Circuits with Modern Magnetic Materials

• Authors: T. Szumiata , M. Gzik-Szumiata
• Languages of publication: EN

Abstracts

EN

In this work a quantitative analysis of thermal compensation has been performed for a magnetic circuit producing magnetic field in the air gap. The considered system consists of Sm₃Co₁₇ type permanent magnet (as a source of magnetic field), nanocrystalline FINEMET alloy (as ultra-soft magnetic medium) and Fe-Ni low Curie temperature compensative material (as a magnetic shunt). Distribution of magnetic field induction in the circuit has been calculated numerically within standard one-dimensional approximation, considering nonlinearities of compensative material as well as demagnetization susceptibility of permanent magnet. It has been theoretically predicted, that an appropriate choice of the compensative element thickness improves significantly thermal stability of magnetic field in the air gap.

Keywords

EN

75.50.Ww; 75.50.Vv; 75.50.Kj; 75.50.Bb; 07.55.Db

Discipline

• 75.50.Vv: High coercivity materials
• 75.50.Kj: Amorphous and quasicrystalline magnetic materials
• 75.50.Bb: Fe and its alloys
• 75.50.Ww: Permanent magnets(for magnets, see 07.55.Db in instruments)
• 07.55.Db: Generation of magnetic fields; magnets(for superconducting magnets, see 84.71.Ba; for beam focusing magnets, see 41.85.Lc in beam optics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 2
• Pages: 650-652

Dates

published

2015-02

Contributors

author

T. Szumiata

• Department of Physics, University of Technology and Humanities in Radom, Krasickiego 54, 26-600 Radom, Poland

author

M. Gzik-Szumiata

• Department of Physics, University of Technology and Humanities in Radom, Krasickiego 54, 26-600 Radom, Poland

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Identifiers

DOI

10.12693/APhysPolA.127.650