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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Bibliographic Details
Published in:IEEE transactions on magnetics 2008-08, Vol.44 (8), p.1982-1989
Main Authors: Ravaud, R., Lemarquand, G., Lemarquand, V., Depollier, C.
Format: Article
Language:English
Subjects:
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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Summary: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