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A novel spherical permanent magnet actuator with three degrees-of-freedom

Wang, J.B., Wang, W.Y., Jewell, G.W. and Howe, D. (1998) A novel spherical permanent magnet actuator with three degrees-of-freedom. IEEE Transactions on Magnetics, 34 (4 (Par). pp. 2078-2080. ISSN 0018-9464

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Abstract

The paper describes a new version of spherical actuator, which is capable of three degrees-of-freedom and a high specific torque. The three-dimensional magnetic field distribution is established using an analytical technique formulated in spherical co-ordinates, and enables the torque vector and back-emf to be derived in closed forms. This facilitates the characterisation of the actuator, and provides the foundation for design optimisation, actuator dynamic modelling and servo control development

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 1998 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Institution: The University of Sheffield
Academic Units: The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
Depositing User: Sherpa Assistant
Date Deposited: 12 Dec 2005
Last Modified: 04 Jun 2014 18:34
Published Version: http://dx.doi.org/10.1109/20.706803
Status: Published
Refereed: Yes
Identification Number: 10.1109/20.706803
URI: http://eprints.whiterose.ac.uk/id/eprint/853

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