Confinement of kOe magnetic fields to very small areas in miniat

Details Confinement of kOe magnetic fields to very small areas in miniat Confinement of kOe magnetic fields to very small areas in miniat

1986-05-01

1987-03-31

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335214, 335306, H01F 702

Patent

active

046546189

ABSTRACT:
A rare earth permanent magnetic apparatus for the containment and control thout 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.

REFERENCES:
patent: 3182234 (1965-05-01), Meyerer
patent: 3205415 (1965-09-01), Seki et al.
patent: 3227931 (1966-01-01), Adler
patent: 3237059 (1966-02-01), Meyerer
patent: 4578663 (1986-03-01), Sanders et al.
patent: 4580120 (1986-04-01), Jacquot

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