Eddy current type multilayered coil for generating intense AC ma

Details Eddy current type multilayered coil for generating intense AC ma Eddy current type multilayered coil for generating intense AC ma

1989-07-31

1990-06-12

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

335296, H01F 500

Patent

active

049336576

ABSTRACT:
In circular conductor plates having radial slits alternately stacked with spirally wound coils continuously connected in order and supplied with comparatively low frequency AC current, eddy currents generated in peripheral direction are concentrated along the radial slits around central holes of the conductor plates, so as to induce concentrated AC magnetic fluxes in those holes. As a result, an intense AC magnetic field can be efficiently obtained by a comparatively small driving AC current in comparatively low frequency range.

REFERENCES:
patent: 3439305 (1969-04-01), Klein
patent: 4745387 (1988-05-01), Aubert
patent: 4774487 (1988-09-01), Aubert
patent: 4808956 (1989-02-01), Aubert

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