Hard magnetic material measurements in a pulsed field magnetometer considering coating and eddy current effects

• Autorzy: Kern Alexander , Leuning Nora , Hameyer Kay

Identyfikatory

DOI

10.24425/aee.2023.145416

• Języki publikacji: EN

Abstrakty

EN

Rare-earth permanent magnets are coated in order to avoid corrosion. When considering the rated geometrical properties of a sample, the coating thickness has to be known precisely as it wrongly enlarges the magnetically active volume which in turn affects the accuracy of the measured magnetic properties. In this work, the sensitivity of hard magnetic material property measurements regarding the consideration of different coating thicknesses is evaluated. Moreover, the impact of eddy current effects on the magnetic properties is studied when measuring in an open circuit. Additionally, an outlook for a measurement-based determination of the electric conductivity of permanent magnet samples is given.

Słowa kluczowe

EN

eddy current effects; hard magnetic materials; magnetic property measurement

• Wydawca: Polish Academy of Sciences, Committee on Electrical Engineering
• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2023
• Tom: Vol. 72, nr 2
• Strony: 407--414
• Opis fizyczny: Bibliogr. 12 poz., rys., tab., wz.

Twórcy

autor

Kern Alexander

• Institute of Electrical Machines (IEM), RWTH Aachen University Schinkelstr. 4, D-52062 Aachen, Germany

• https://orcid.org/0000-0002-4830-4252

autor

Leuning Nora

• Institute of Electrical Machines (IEM), RWTH Aachen University Schinkelstr. 4, D-52062 Aachen, Germany

• https://orcid.org/0000-0002-7142-7568

autor

Hameyer Kay

• Institute of Electrical Machines (IEM), RWTH Aachen University Schinkelstr. 4, D-52062 Aachen, Germany

• https://orcid.org/0000-0003-1995-8801

Bibliografia

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• [11] Jiles D. C., Modelling the effects of eddy current losses on frequency dependent hysteresis in electrically conducting media, IEEE Transactions on Magnetics, vol. 30, no. 6, pp. 4326–4328 (1994), DOI: 10.1109/20.334076.
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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).