Magnetic head apparatus having non-magnetic metal interposed bet

Details Magnetic head apparatus having non-magnetic metal interposed bet Magnetic head apparatus having non-magnetic metal interposed bet

1990-01-26

1992-04-07

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 7716, G11B 556, G11B 2124

Patent

active

051033615

ABSTRACT:
A magnetic head apparatus has a piezoelectric element comprising a pair of piezoelectric members. A magnetic head is mounted on the piezoelectric element and records/reproduces desired data. A non-magnetic metal member having a predetermined coefficient of thermal expansion is formed between the piezoelectric members. A driving circuit is connected to the piezoelectric element and the non-magnetic metal member, and drives the magnetic head in a direction substantially perpendicular to the head trace direction, by applying a predetermined voltage.

REFERENCES:
patent: 4151569 (1979-04-01), Hathaway
patent: 4152734 (1979-05-01), Louth
patent: 4438469 (1984-03-01), Ohba

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