Hollow substantially hemispherical permanent magnet high-field f

Details Hollow substantially hemispherical permanent magnet high-field f Hollow substantially hemispherical permanent magnet high-field f

1988-05-27

1989-05-30

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

315 535, 335304, H01F 702

Patent

active

048355062

ABSTRACT:
A hollow hemispherical flux source produces a uniform high-field in its central cavity. The hemisphere is comprised of a selected magnetic material whose magnetization is azimuthally symmetrical. The magnetic orientation (.alpha.) in the hemispherical permanent magnet shell is given by the equation:

REFERENCES:
patent: 2952803 (1960-09-01), Charles et al.
patent: 3768054 (1973-10-01), Neugebauer
patent: 4392078 (1983-07-01), Noble et al.
patent: 4429229 (1984-01-01), Gluckstern
patent: 4614930 (1986-09-01), Hickey et al.
"Proceedings of the Eighth International Workshop on Rare Cobalt Permanent agnets", by Klaus Halbach (Univ. Dayton, Dayton, OH, 1985), pp. 123-136.

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