DocumentCode :
1052087
Title :
Optimum permanent-magnet dimensions for repulsion applications
Author :
Cooper, Richard K. ; Neil, V.Kelvin ; Woodruff, Wayne R.
Author_Institution :
California State University, Hayward, Calif
Volume :
9
Issue :
2
fYear :
1973
fDate :
6/1/1973 12:00:00 AM
Firstpage :
125
Lastpage :
127
Abstract :
The repulsive force between identical right-circular-cylindrical permanent magnets is calculated, and the ratio of this force to the weight of a magnet is maximized through optimization of magnet size and shape. It is assumed that the magnets are uniformly magnetized along their axes. For magnets of thickness 
and radius 
, separated by a distance 
, the optimum dimensions are 
and 
. For these dimensions, the repulsive magnetic force has the value 
newtons, with the magnetization 
in At/m and 
in meters.
and radius , separated by a distance , the optimum dimensions are and . For these dimensions, the repulsive magnetic force has the value newtons, with the magnetization in At/m and in meters.Keywords :
Permanent magnets; Cobalt; Force measurement; Kelvin; Magnetic forces; Magnetic levitation; Magnetic materials; Magnetic separation; Magnetization; Permanent magnets; Shape;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1973.1067575
Filename :
1067575
Link To Document :
