Measuring and testing – Rotor unbalance – Dynamic
Patent
1997-10-23
2000-08-29
Williams, Hezron
Measuring and testing
Rotor unbalance
Dynamic
360 9908, G01M 116
Patent
active
061091014
ABSTRACT:
A spindle motor rotational unbalance correction mechanism has a stand onto which the magnetic disk apparatus is placed, a mounting device for fixing the magnetic disk apparatus to the stand, and a base plate onto which the stand is placed, with an intervening resilient material therebetween. An acceleration sensor detects the vibration of the magnetic disk apparatus when it is operated. A vibrator applies a mechanical shock to the magnetic disk apparatus. A control circuit calculates from a detection signal from the acceleration sensor any shift in position of the magnetic recording medium mounted on the magnetic disk apparatus and controls the supply of electrical driving power to the vibrator in order to correct for the position shift of the magnetic recording medium, thereby providing a high-performance magnetic disk apparatus in which the position shift of the magnetic disk is corrected.
REFERENCES:
patent: 5277063 (1994-01-01), Thomas
patent: 5572382 (1996-11-01), Kuno
patent: 5587855 (1996-12-01), Kim
patent: 5654875 (1997-08-01), Lawson
patent: 5811678 (1998-09-01), Hirano
Iwabuchi Masanori
Nakasato Hirohisa
Sukegawa Takeshi
Moller Richard A.
NEC Corporation
Williams Hezron
LandOfFree
Spindle motor rotational unbalance correction mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spindle motor rotational unbalance correction mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spindle motor rotational unbalance correction mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1237072