Magnetic head and multitrack transducer for perpendicular record

Details Magnetic head and multitrack transducer for perpendicular record Magnetic head and multitrack transducer for perpendicular record

1981-05-06

1983-12-27

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Flux gate

360123, G11B 520

Patent

active

044234503

ABSTRACT:
An improved recording and read head particularly suited for use with perpendicular recording techniques. The recording head can be fabricated either as a single head or as a multitrack array. If fabricated as a multitrack array, the head includes a plurality of main poles spaced closely to one another and a common long flux closing pole which completes a magnetic circuit between the main poles and the recording medium. Each main pole of the head array is individually addressable with a purpose of recording or reading by means of a flux gate arrangement. The flux gate may be utilized so that the head operates either in a conventional fashion by detecting the rate of change of induced flux or by detecting the magnitude of the induced flux.

REFERENCES:
patent: 2905770 (1959-09-01), Kornei
patent: 3152225 (1964-10-01), Peters
patent: 3454727 (1969-07-01), Siera et al.
patent: 4138702 (1979-02-01), Magnenet
patent: 4317148 (1982-02-01), Chi

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