Analytical Calculation of the Magnetic Field Created by Permanent-Magnet Rings

We present analytical formulations, based on a coulombian approach, of the magnetic field created by permanent-magnet rings. For axially magnetized magnets, we establish the expressions for the three components. We also give the analytical 3-D formulation of the created magnetic field for radially m...

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Veröffentlicht in:	IEEE transactions on magnetics 2008-08, Vol.44 (8), p.1982-1989
Hauptverfasser:	Ravaud, R., Lemarquand, G., Lemarquand, V., Depollier, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustics Analytical calculation Approximation axial magnetization Couplings Cross-disciplinary physics: materials science rheology Exact sciences and technology Formulations Magnetic analysis Magnetic devices magnetic field Magnetic fields Magnetic levitation Magnetic resonance imaging Magnetism Magnetization Magnets Materials science Mathematical analysis Mechanics Optimization methods Other topics in materials science Permanent magnet motors permanent-magnet rings Physics radial magnetization Topology
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Beschreibung
Zusammenfassung:	We present analytical formulations, based on a coulombian approach, of the magnetic field created by permanent-magnet rings. For axially magnetized magnets, we establish the expressions for the three components. We also give the analytical 3-D formulation of the created magnetic field for radially magnetized rings. We compare the results determined by a 2-D analytical approximation to those for the 3-D analytical formulation, in order to determine the range of validity of the 2-D approximation.
ISSN:	0018-9464 1941-0069
DOI:	10.1109/TMAG.2008.923096