Adaptive loading/unloading suspension

Details Adaptive loading/unloading suspension Adaptive loading/unloading suspension

1999-01-19

1999-12-14

Cao, Allen T.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 75, G11B 548, G11B 2102

Patent

active

060025522

ABSTRACT:
A head gimbal assembly includes an adaptive loading/unloading suspension with an aerodynamic compensation mechanism formed with or attached to the load beam. The compensation mechanism causes a variable and programmable dynamic gram load to be applied on the suspension such that a low gram load is achieved at the time of dynamic head loading, thus significantly minimizing or totally eliminating head-to-disk contact. The variable suspension gram load feature can be combined with an air slider bearing design to achieve optimal flying height performance and cost effectiveness. Such combination provides the air bearing design with an additional degree of freedom to achieve a more uniform flying height and improved altitude sensitivity than under a constant preload.

REFERENCES:
patent: 4996616 (1991-02-01), Aoyagi et al.
patent: 5612841 (1997-03-01), Johnson

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