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Design of a dual moving-magnet motor for a hard disk drive actuator

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3 Author(s)
Chen, S.X. ; Data Storage Inst., Nat. Univ. of Singapore, Singapore ; Wood, R. ; Mah, Y.

This paper presents the design and the measured performance of a moving-magnet motor intended to drive a high bandwidth actuator assembly. The motor includes two magnets which are arranged to provide mainly torque rather than force. As a reference point, measurements are also made on a conventional moving coil actuator from a commercial 3.5" hard disk drive. The dual moving-magnet actuator is found to have better electromechanical characteristics and to be more power effective than the reference actuator

Published in:

Magnetics, IEEE Transactions on  (Volume:33 ,  Issue: 5 )

Date of Publication:

Sep 1997

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