DocumentCode
1414939
Title
A novel spherical permanent magnet actuator with three degrees-of-freedom
Author
Wang, Jiabin ; Wang, Weiya ; Jewell, Geraint W. ; Howe, David
Author_Institution
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
Volume
34
Issue
4
fYear
1998
fDate
7/1/1998 12:00:00 AM
Firstpage
2078
Lastpage
2080
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
Keywords
actuators; permanent magnets; back-EMF; design optimisation; dynamic model; servo control; spherical permanent magnet actuator; three degrees-of-freedom; three-dimensional magnetic field distribution; torque; Actuators; Finite element methods; Magnetic analysis; Magnetic fields; Magnetic flux; Magnetization; Permanent magnets; Permeability; Stator windings; Torque;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.706803
Filename
706803
Link To Document