G - Physics – 11 – B
Patent
G - Physics
11
B
310/63, 352/24.3
G11B 5/54 (2006.01) G11B 5/55 (2006.01) H02K 41/035 (2006.01)
Patent
CA 1306799
Y0984-097 MULTIPLE COILS FOR REDUCTION OF STRAY MAGNETIC FIELDS IN DISK FILE ACTUATORS ABSTRACT A linear disk actuator is disclosed incorporating a magnetic circuit for reducing stray magnetic fields in the region of the disks and recording heads of a magnetic recording disk system. The moving part of the actuator is provided with a plurality of coils mounted thereon, at least two of which are energized simultaneously and in magnetically opposing relationship to reduce the amplitude of the stray magnetic fields. Movement of the actuator is achieved by both energized coils interacting with a set of alternating poles positioned on the stationary part of the actuator.
502703
Scranton Robert A.
Thompson David A.
Worthington Thomas K.
International Business Machines Corporation
Rosen Arnold
Scranton Robert A.
Thompson David A.
Worthington Thomas K.
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