DocumentCode
822453
Title
Measurement of magnetic fields in axial field motors
Author
Lee, J. Kelly
Author_Institution
Eastman Kodak Co., Rochester, NY, USA
Volume
28
Issue
5
fYear
1992
fDate
9/1/1992 12:00:00 AM
Firstpage
3021
Lastpage
3023
Abstract
Measurements of the magnetic field in three axial field brushless DC motors are described. Three different magnetic materials are used in these motors. A closed-form analytical equation, which is based on a 2-D approximation, is used for calculating the flux density. The 2-D theory is shown to be reasonably good at predicting the magnetic flux density at the mean radius of the magnet for the range of axial field motors studied. For rough calculations of the field in the gap the theory is adequate. A technique for estimating the magnetization of the magnets is described
Keywords
DC motors; magnetic field measurement; magnetic fields; magnetic flux; permanent magnet motors; 2-D approximation; PM motor; axial field motors; brushless DC motors; closed-form analytical equation; flux density; magnetic fields measurement; magnetization; Brushless DC motors; DC motors; Magnetic analysis; Magnetic field measurement; Magnetic flux; Magnetic flux density; Magnetic materials; Magnetization; Magnets; Toroidal magnetic fields;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.179704
Filename
179704
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