Accession Number : ADD013771

Title :   High-Field Permanent-Magnet Structures.

Descriptive Note : Patent Application, Filed 27 May 88,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Leupold, Herbert A

Report Date : 27 May 1988

Pagination or Media Count : 19

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: alpha = 2. Theta where Theta is the polar angle. A planar plate of high saturation, high permeability material closes the open end of the hemisphere. An axial bore hole through the hemisphere and/or through the planar plate provides the requisite accessability.

Descriptors :   *PERMANENT MAGNETS, *PATENT APPLICATIONS, ANGLES, CAVITIES, EQUATIONS, FLUX(RATE), HEMISPHERES, HEMISPHERICAL SHELLS, MAGNETIC FIELDS, MAGNETIZATION, ORIENTATION(DIRECTION), PERMEABILITY, SATURATION, SOURCES

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE