Electricity: motive power systems – Positional servo systems – With stabilizing features
Patent
1999-01-26
2000-08-22
Sircus, Brian
Electricity: motive power systems
Positional servo systems
With stabilizing features
318616, 318623, 318648, 318649, 318 37, 318 58, 318161, 700 60, 359199, 359213, 244165, 310 36, 310 74, G05B 501, H02K 702, G02B 2608, B64G 128, F16H 2702
Patent
active
061077704
ABSTRACT:
A control system stabilizes the flexible body bending modes of a space, airborne, or ground-based system, while providing angular position control of an oscillating mass connected to a counter-oscillating counterbalance. The actuating mechanism uses two drive motors to exert torques on the mass and counterbalance, respectively, under the control of a feedback controller. The controller has a first control channel generating a first torque command signal for the first drive based on the angular position of the mass, and a second control channel generating a second torque command signal for the second drive based on the angular position of the counterbalance and a torque cross-feed signal from the first control channel. The second control channel includes a notch filter for removing input frequencies in a predetermined bandwidth about the frequency of the first torque command signal. The same controller can be used to control the system in oscillation and for large angle repositioning of the mass and counterbalance. The present invention provides a control system for a highly precise and efficient mechanical scanning device suitable for use in a space-based LIDAR system or other similar systems.
REFERENCES:
patent: 3952217 (1976-04-01), Rawlings
patent: 4021716 (1977-05-01), Rue
patent: 4375878 (1983-03-01), Harvey et al.
patent: 4723735 (1988-02-01), Eisenhaure et al.
patent: 5012170 (1991-04-01), Atlas
patent: 5042753 (1991-08-01), Atlas
patent: 5063336 (1991-11-01), Atlas
patent: 5131611 (1992-07-01), Vollaro
patent: 5210636 (1993-05-01), Baer
patent: 5256942 (1993-10-01), Wood
patent: 5283682 (1994-02-01), Ostaszewski
patent: 5396815 (1995-03-01), Polites et al.
patent: 5504407 (1996-04-01), Wakui et al.
patent: 5552893 (1996-09-01), Akasu
patent: 5611505 (1997-03-01), Smay
patent: 5708332 (1998-01-01), Bottger et al.
patent: 5751078 (1998-05-01), Loewenthal
patent: 5790241 (1998-08-01), Trussell, Jr.
patent: 5816538 (1998-10-01), Challoner et al.
patent: 5921505 (1999-07-01), Spector
patent: 5925957 (1999-07-01), Chapman
patent: 6020956 (2000-02-01), Herman et al.
Jackson Richard S.
Manke Girard M.
Lockheed Martin Corporation
Sircus Brian
The Aerospace Corporation
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