Accession Number : ADD012354

Title :   Confinement of KOe Magnetic Fields to Very Small Areas in Miniature Devices.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Leupold,Herbert A

Report Date : 01 May 1986

Pagination or Media Count : 16

Abstract : This patent application discloses a rare earth permanent magnetic apparatus for the containment and control without any substantial loss of field flux comprising electro-deposited layers of rare earth magnetic material disposed and laid up around a ferrite center core element, the first or inner layer comprising a uniformly thick supply magnet to produce the magnetic field to be controlled, and the second or cladding magnet constituting a layer of diminishing thickness from the outboard ends of the device towards and to the plane of zero magnetic potential at or near the middle of the device.

Descriptors :   *PATENT APPLICATIONS, *ELECTROMAGNETS, *MINIATURE ELECTRICAL EQUIPMENT, *MAGNETIC CORES, CLADDING, CONFINEMENT(GENERAL), ELECTRODEPOSITION, FERRITES, FLUX(RATE), INTERNAL, LAYERS, LOSSES, MAGNETIC FIELDS, MAGNETS, MATERIALS, MINIATURIZATION, RARE EARTH ELEMENTS, SUPPLIES, THICKNESS

Subject Categories : Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE