Optimization of systems of permanent magnets

Various systems of permanent magnets with a large magnetic anisotropy, in which strong stray magnetic fields are generated, have been calculated. A classification of the magnet systems and corresponding strong fields into linear and point systems is suggested. It is shown that the greatest linear fi...

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Bibliographic Details
Published in:Physics of metals and metallography 2006-11, Vol.102 (5), p.494-505
Main Authors: Samofalov, V. N., Belozorov, D. P., Ravlik, A. G.
Format: Article
Language:English
Subjects:
Optimization
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Summary:Various systems of permanent magnets with a large magnetic anisotropy, in which strong stray magnetic fields are generated, have been calculated. A classification of the magnet systems and corresponding strong fields into linear and point systems is suggested. It is shown that the greatest linear field can be obtained in a system of the Halbach-cylinder type, in which this field tends to H ^sub x^ = 4πM ^sub s^ln(a/x) with increasing number of uniformly magnetized sectors. The limiting value of the point field is obtained in systems of a large number of conical magnets each separated into many sectors. Such a field approaches H ^sub x^ 8πM ^sub s^ln(a/x) in magnitude.[PUBLICATION ABSTRACT]
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X06110068