Secondary actuator

Details Secondary actuator Secondary actuator

1998-08-21

2000-10-31

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Head mounting

Disk record

G11B 555

Patent

active

061411884

ABSTRACT:
An actuator for a direct access storage device has a secondary actuator with discrete or distributed masses such that a mechanical nodal point is created. The nodal point does not move with respect to the primary actuator. The secondary actuator is attached to the primary actuator at a nodal point. No net forces are coupled to the primary actuator when the secondary actuator is activated in a vibratory movement by a piezo-electric element.

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Miu, et al., "Silicon Micromachined Scaled Technology," 1993 JMSE International Conference on Advanced Mechanotronics, Tokyo, Japan, Aug. 1993, pp. 527-532.
Mori, et al., "A Dual Stage Magnetic Disk Drive Actuator Using A Piezoelectric Device For a High Track Density," IEEE Transactions on Magnetics, Nov. 1991, vol. 27, No. 6, pp. 5298-5300.
Miu, et al., "Silicon Microstructures and Microactuators for Compact Computer Disk Drives," IEEE Control Systems, Dec. 1994, pp. 52-57.
Miu, et al., "Silicon Microgimbals for Super-Compact Magnetic Recording Rigid Disk Drives," Adv. Info. Storage Syst., vol. 5, 1993, pp. 139-152.

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