Actuator mechanism for disk storage apparatus

Details Actuator mechanism for disk storage apparatus Actuator mechanism for disk storage apparatus

G - Physics

11

B

352/30.2

G11B 5/54 (2006.01) G11B 5/55 (2006.01)

Patent

CA 1078513

ACTUATOR MECHANISM FOR DISK STORAGE APPARATUS ABSTRACT The invention relates to an actuator mechanism suitable for positioning a recording head over the surface of a recording disk. The actuator consists of a planar coil etched from a copper laminated board. The board is pivoted at one end and carries a recording head supported on an extended arm. Magnets produce a flux perpendicular to the plane of the laminate so that current through the coil produces limited motion of the board about its pivot. The actuator mechanism is located in relation to the disk so that the limited motion of the board moves the head over the disk from one transducing position to another. The mechanism is included in a closed loop servo system which derives position information from servo tracks on the disk and enables track access and track following operations to be conducted.

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