Low mass actuator system for magnetic recording disks with half

Details Low mass actuator system for magnetic recording disks with half Low mass actuator system for magnetic recording disks with half

1980-12-31

1983-08-02

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

310 13, G11B 2108, H02K 4100

Patent

active

043969666

ABSTRACT:
A linear motor adapted for driving a magnetic recording head reciprocably across the surface of a magnetic recording disk in a disk file has its stator located between the disks. The stator includes parallel magnetic yokes composed of plates extending parallel to the disks. At least one of the plates carries an array of regularly spaced and alternating magnetic pole elements, rigidly secured to one yoke with a gap extending between the yokes including the alternating poles providing a space within which the armature reciprocates, from one magnetic polarity to the opposite a plurality of times per reciprocation of the armature. End poles are provided at each end of the array, which are matched to collect the return flux from the adjacent distal pole to reduce fringing flux which emanates towards the disks and the recording heads.

REFERENCES:
patent: 4314295 (1982-02-01), Frandsen
patent: 4322762 (1982-03-01), Manzke et al.

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