Voice coil servo motor for adjusting magnetic head

Details Voice coil servo motor for adjusting magnetic head Voice coil servo motor for adjusting magnetic head

1993-09-15

1995-05-09

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360109, G11B 555, G11B 2108

Patent

active

054145783

ABSTRACT:
A head positioning assembly having a magnet housing and fixed suspension vertically positionable by a worm gear/screw shaft arrangement and further positionable for fine tuning by a magnet mounted within the magnet housing and an electrical coil surrounding the magnet and attached to a head mount structure holding the magnetic head. The head mount structure is fine-tuned, vertically positionable with respect to the magnet housing by magnetic force on the coil induced by select and varying electrical current through the coil.

REFERENCES:
patent: 4030137 (1977-06-01), Dalziel
patent: 4491890 (1985-01-01), Rudi
patent: 4868432 (1989-09-01), Frandsen
patent: 5280402 (1994-01-01), Anderson et al.

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