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