Flex circuit vibration sensor

Details Flex circuit vibration sensor Flex circuit vibration sensor

1994-08-17

1996-06-11

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360104, 360 9702, G11B 5596

Patent

active

055262082

ABSTRACT:
A method and apparatus for sensing vibration in a flex circuit located between a rotary actuator and electronics within a disk drive. Specifically, the apparatus contains a strain gauge attached to or imbedded within the flex circuit. The resistivity of the strain gauge varies in response to vibrations on the cable. This resistance variation can be transformed into electrical signals that are used by a servo system to move the actuator assembly in compensatory motion that effectively cancels any off-track motion caused by the vibrations.

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patent: 5325081 (1994-06-01), Roberts
patent: 5335126 (1994-08-01), Tokyuama et al.
patent: 5392027 (1995-02-01), Brunot et al.
patent: 5459383 (1995-10-01), Sidman et al.

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