Apparatus for damping head positioners for disc drives

Details Apparatus for damping head positioners for disc drives Apparatus for damping head positioners for disc drives

1987-10-26

1989-03-14

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555

Patent

active

048129356

ABSTRACT:
In order to improve servo system stability and decrease settling times in rotary head positioners for high performance magnetic disc drives, a floating mass damper is mounted on the end of an accessing head arm structure of the positioner opposite to the end or ends carrying the magnetic head or heads. The damper includes a spring centered floating mass which rests on a viscous film, such as silicone oil, and the shear forces developed by motion of the floating mass across the film dissipates vibrational mode energy in the accessing head arm structure during both a fast seek operation followed by track following fine servo operation. Such energy dissipation thus reduces the settling time and amplitude of natural resonance of the head positioner.

REFERENCES:
patent: 3961371 (1976-06-01), Kobylarz
patent: 4144466 (1979-03-01), Hatch
patent: 4200894 (1980-04-01), Kaseta
patent: 4408238 (1983-10-01), Hearn

Affiliated with

Also associated with

Rating

Apparatus for damping head positioners for disc drives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for damping head positioners for disc drives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for damping head positioners for disc drives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-897779