Measuring and testing – Vibration – Vibrator
Patent
1996-03-26
1998-07-07
Williams, Hezron E.
Measuring and testing
Vibration
Vibrator
73668, 1987501, 1987521, 198751, G01M 702, B65G 2504
Patent
active
057772320
ABSTRACT:
In a vibratory apparatus including vibratory speed detector for detecting a vibratory speed of a vibratory machine, a self-excited oscillation controller for amplifying the output of the vibratory speed detector at a feed-back gain K, receiving the output of the vibratory speed detector as a positive feed-back signal, a power amplifier for power-amplifying the output of the self-excited oscillation controller and a vibratory exciter receiving the output of the power amplifier for vibrating the vibratory machine, the feed back gain K is changed in accordance with the equation; K=K.sub.1 .DELTA.r+K.sub.3 (.DELTA.r).sup.3 +Kcr, where .DELTA.r represents the amplitude difference between a predetermined amplitude and the present amplitude, K.sub.1, K.sub.3 constants, and Kcr critical stability gain.
REFERENCES:
patent: 3842661 (1974-10-01), Marshall et al.
patent: 4002270 (1977-01-01), Reiner
patent: 4297888 (1981-11-01), Hirai et al.
patent: 4331263 (1982-05-01), Brown
patent: 4544867 (1985-10-01), Jones, Jr. et al.
patent: 4677353 (1987-06-01), Shieh
patent: 4737695 (1988-04-01), Kim
patent: 4811835 (1989-03-01), Bullivant et al.
patent: 4825332 (1989-04-01), Aoki
patent: 4888705 (1989-12-01), Friedland
patent: 4916632 (1990-04-01), Doi et al.
patent: 5074403 (1991-12-01), Myhre
patent: 5333819 (1994-08-01), Stetson, Jr.
patent: 5341307 (1994-08-01), Myhre et al.
patent: 5472079 (1995-12-01), Yagi et al.
Kurita Yutaka
Muragishi Yasushi
Yasuda Hitoshi
Miller Rose M.
Shinko Electric Co. Ltd.
Williams Hezron E.
LandOfFree
Control system for vibratory apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system for vibratory apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for vibratory apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1208187