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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2009-02-09
Magnetic Field Produced by a Tile Permanent Magnet Whose Polarization Is Both Uniform and Tangential
By
Romain Ravaud,

    Dr. Romain Ravaud

    Laboratoire d'Acoustique de l'Universite du Maine

    France

    Homepage

Guy Lemarquand,

    Prof. Guy Lemarquand

    Laboratoire d'Acoustique de l'Universite du Maine

    France

    Homepage

Valerie Lemarquand,

    Prof. Valerie Lemarquand

    Laboratoire d'Acoustique de l'Universite du Maine

    France

    Homepage

Claude Depollier

    Dr. Claude Depollier

    Laboratoire d'Acoustique de l'Universite du Maine

    France

    Homepage

Progress In Electromagnetics Research B, Vol. 13, 1-20, 2009
doi:10.2528/PIERB08121901 | Google Scholar

Abstract
This paper presents the exact 3D calculation of the magnetic field produced by a tile permanent magnet whose polarization is both tangential and uniform. Such a calculation is useful for optimizing magnetic couplings or for calculating the magnetic field produced by alternate magnet structures. For example, our 3D expressions can be used for calculating the magnetic field produced by a Halbach structure. All our expressions are determined by using the coulombian model. This exact analytical approach has always proved its accuracy and its usefulness. As a consequence, the tile permanent magnet considered is represented by using the fictitious magnetic pole densities that are located on the faces of the magnet. In addition, no simplifying assumptions are taken into account for calculating the three magnetic field components. Moreover, it is emphasized that the magnetic field expressions are fully three-dimensional. Consequently, the expressions obtained are valid inside and outside of the tile permanent magnet, whatever its dimensions. Such an approach allows us to realize easily parametric studies.
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Citation
Romain Ravaud, Guy Lemarquand, Valerie Lemarquand, and Claude Depollier, "Magnetic Field Produced by a Tile Permanent Magnet Whose Polarization Is Both Uniform and Tangential," Progress In Electromagnetics Research B, Vol. 13, 1-20, 2009.
doi:10.2528/PIERB08121901
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