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This paper investigates three kinds of permanent-magnet arrays used in planar motors with polarity centers distributed in the lattices of a matrix. The magnetic field of every kind of magnet array is analyzed by analytical methods. First, we give a Laplace equation of magnetic scalar potential and a series of boundary conditions. Then, we derive the analytical expressions of magnet field strength and magnet flux density in the air gap of each kind of magnet array by the method of separation of variables. Finally, we compare the three types of magnet arrays on the basis of the analytical solutions.
Published in:
Magnetics, IEEE Transactions on
(Volume:40
,
Issue:
6
)
Date of Publication: Nov. 2004
- Page(s):
- 3490 - 3494
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 8237387
- Digital Object Identifier :
- 10.1109/TMAG.2004.837491
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 08 November 2004
- Issue Date :
- Nov. 2004
- Sponsored by :
- IEEE Magnetics Society
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