Magnetic imaging apparatus

Details Magnetic imaging apparatus Magnetic imaging apparatus

1980-07-21

1983-11-08

Tarcza, Thomas H.

Recorders

Magnetographic

Magnetographic head

G01D 1512

Patent

active

044145543

ABSTRACT:
Apparatus for producing in a magnetic image-storage medium a high-resolution, smooth-edge-defining magnetic image. Such is accomplished through the cooperative action of two, opposite-polarity, concentric magnetic poles which function to create, on a face in such a medium, a somewhat doughnut-shaped defined magnetized zone, which zone is characterized by multi-directionally oriented magnetic vectors distributed generally with spherical geometry. The magnetic poles are created by exciting electrically magnetic-flux-inducing spiral coils which are spaced from the magnetic poles.

REFERENCES:
patent: 2820956 (1958-01-01), Rueger
patent: 2841461 (1958-07-01), Gleason
patent: 2950161 (1960-08-01), Rueger
patent: 2982889 (1961-05-01), Whearley
patent: 3898674 (1975-08-01), Koch
patent: 4054922 (1977-10-01), Fichter
patent: 4146858 (1979-03-01), McDermott
patent: 4295173 (1981-10-01), Romankiw et al.

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