Control of permanent magnet material characteristics and magnetic field calculation based on demagnetization factor value
Podolskii A. V.1
1Magnetic Technologies LLC, Saint Petersburg, Russia
Email: avpodolsky@mail.ru
-1 The article shows that demagnetization factor of a permanent magnet, defined as the ratio of magnetic field strength to magnetization value, depends on hysteresis loop parameters, in addition to the shape, the relationships between magnet sizes, and the direction of magnetization. The analytical expression for calculating the demagnetization factor is obtained. It allows constructing the load line of a magnet. It is shown that the magnetization value obtained from the load line makes it possible calculating field parameters close to observed. Graphical dependencies to determine demagnetization factor values of ring-shaped axially and radially magnetized permanent magnets are constructed. Keywords: demagnetization factor, magnetic field strength, magnetization, load line, permanent magnet.
- A.V. Kunevich, A.V. Podol'skii, I.N. Sidorov. Ferrity. Entsiklopedicheskii spravochnik (Lik, SPb., 2004) (in Russian)
- S.I. Levchenko, I.V. Litvinova, S.A. Tsaturyan. Elektronnaya tekhnika, seriya 7, Ferritovaya tekhnika, 1, 107 (1967) (in Russian)
- D.X. Chen, J.A. Brug, R.B. Goldfarb. IEEE Trans. Magnetics, 21 (4), 3601 (1991)
- D.X. Chen, E. Pardo, A. Sanchez. IEEE Trans. Magnetics, 41 (6), 2077 (2005)
- K. Etse, X. Mininger. J. Magn. Magn. Mater., 564 (2), (2022). Electronic source. Available at: 7.59 https://www.sciencedirect.com/science/article/abs/pii/S0304885322010368
- C.R.H. Bahl. AIP Adv., 11 (7), (2021). Electronic source. Available at: https://pubs.aip.org/aip/adv/ article/11/7/075028/989699/Estimating-the-demagnetization-factors-for-regular
- V. Smait. Elektrostatika i elektrodinamika (Ripol Klassik, M., 2014) (in Russian)
- A.V. Podol'skii. Tech. Phys., 21 (12), 1459 (1976)
- I.S. Gradshtein, I.M. Ryzhik. Tablitsy integralov, summ, ryadov i proizvedeniy (Nauka, M., 1974) (in Russian)
- V.A. Il'in, E.G. Poznyak. Osnovy matematicheskogo analiza (Nauka, M., 1965) (in Russian)
- S.G. Mikhlin. Lektsii po lineinym integral'nym uravneniyam (Fizmatlit, M., 1959) (in Russian)
- S.G. Sandomirskii. Raschet i analiz razmagnichivayushchego faktora ferromagnitnykh tel (Belorusskaya nauka, Minsk, 2015) (in Russian)
- Yu.V. Afanas'ev. Ferrozondovye pribory (Energoatomizdat, L., 1986) (in Russian).
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