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The influence of magnetization pattern on the performance of a cylindrical moving-magnet linear actuator

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3 Author(s)
Clark, Richard E. ; Dept. of Electron. & Electr. Eng., Sheffield Univ., UK ; Howe, D. ; Jewell, G.W.

This paper is concerned with the influence of the magnetization process on the performance of a cylindrical moving-magnet linear actuator, specifically the extent to which actuator performance, in terms of force-stroke profile, is compromised by the use of homopolar magnetized ring magnets. Finite element modeling of both an ideal radially magnetized ring magnet and a ring magnet on which the magnetization has been imparted by an impulse magnetization fixture is performed, and the results are validated by experimental measurements on a prototype actuator

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Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )