Computer Engineering in Applied Electromagnetism pp 297-300 | Cite as
Eddy Current Effects in the Sample of 2D R.R.S.S.T. and in the Sample of 2D S.R.S.S.T.
Abstract
Rotational magnetic fields in the sample of R.R.S.S.T. and in the sample of S.R.S.S.T. are calculated. The aim of the calculation is to find out which of the testers is better for the measurement of magnetic properties of magnetic materials in the rotational magnetic field. The influence of the eddy currents and influence of the magnetic density on the magnetic field homogeneity in the samples of the testers is investigated.
On the basis of the calculations and measurements some conclusion can be made. The path of eddy currents is the same for all rotational magnetisation directions for the R.R.S.S.T. and it is different for different magnetization directions for the S.R.S.S.T. The highest magnetic density B is always in the centre of the sample for the R.R.S.S.T. and the highest magnetic density for some magnetisation directions and higher amplitudes of B is at the corners of the sample for the S.R.S.S.T.
Keywords
Eddy Current Magnetisation Direction Field Homogeneity Magnetic Field Homogeneity Rotational PowerPreview
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References
- [1]J. Sievert et. all, European intercomparison of measurements of rotational power loss in electrical sheet steel, Journal of Magnetism and Magnetic Materials, vol. 160, p.p. 115–118, 1996CrossRefGoogle Scholar
- [2]V. Goričan, A. Hamler, B. Hribernik, M. Trlep, The Inluence of Terrestrial Magnetism on Power Loss Measurement in Case of Annealed Amprphous Magnetic Material, 2-D M Proceedings, p.p. 204–206, September 2000, Bad GasteinGoogle Scholar
- [3]Jesenik Marko, Trlep Mladen, Štumberger Bojan, Hamler Anton. Transient Eddy Current Calculation with Finite Element Method, Elektroteh. vestn., 2002, vol. 69, num. 2, p.p. 101–106.Google Scholar
- [4]O. Biro, K. Preis, On the Use of the Magnetic Vector Potential in the Finite Element Analysis of Three-Dimensional Eddy Currents, IEEE Transaction on Magnetics, Vol. 25, No. 4 July 1989Google Scholar
- [5]M. Trlep, B. Kreča, B. Hribernik, “Hybrid Finite Element — Boundary Method for Nonlinear Electromagnetic Problems”, IEEE Transaction on Magnetics, Vol. 28. No.5. pp 2271–2273, September 1993Google Scholar
- [6]Goričan Viktor, Hamler Anton, Jesenik Marko, Štumberger Bojan, Trlep Mladen. Unreliable determination of vector B in 2-D SST. J. magn. magn. mater., 2003, 254/255, p.p. 130–132.CrossRefGoogle Scholar