Boots – shoes – and leggings
Patent
1992-06-08
1994-10-25
Smith, Jerry
Boots, shoes, and leggings
364164, 364165, 36416701, 364525, 359843, G05B 1302, G05B 1918, G05B 510
Patent
active
053595203
ABSTRACT:
An adaptive control includes a digital error correction system (DECS) to reduce control system error to near zero by anticipating a problem and feeding forward in time a correction to deal with the problem before it happens. The adaptive control is used in a controlled system of the kind which is cyclical in operation and which operates in response to repetitive cycle commands so that the operation of the system is substantially predictable for a significant number of cycles of operation. The adaptive control is incorporated in a spatial chopping or scanning telescope system of the kind in which a telescope mirror is moved in repetitive cycle motions and in a rigidly prescribed pattern between varied orientations and wherein the mirror is held for a prescribed, relatively long period of time in each orientation and is moved rapidly in a relatively short period of time from one orientation to another. The adaptive control permits accurate control of the command waveform frequency and shape, enables the telescope system to keep position error near zero by using, in combination with the feedback loop, a feed forward loop directly driving the actuators during the transition period and actively holding the mirror in position during the dwell periods. The adaptive control provides the ability to eliminate overshoot and ringing, because the force command provides the precise amount of braking required to exactly stop the mirror motion.
REFERENCES:
patent: 3881184 (1975-04-01), Koepcke et al.
patent: 4071744 (1978-01-01), Pollock
patent: 4389849 (1983-06-01), Gasser et al.
patent: 4397155 (1983-08-01), Davey
patent: 4467186 (1984-08-01), Goralnick et al.
patent: 4543793 (1985-10-01), Chellis et al.
patent: 4567726 (1986-02-01), Vitale et al.
patent: 4694228 (1987-09-01), Michaelis
patent: 4825055 (1989-04-01), Pollock
patent: 4913534 (1990-04-01), Goff
patent: 5109349 (1992-04-01), Ulich et al.
patent: 5119287 (1992-06-01), Nakamura et al.
K. R. Lorell, R. R. Clappier, W. F. Barrows & G. K. Lee "A Microprocessor-based Position Control System for a Telescope Secondary Mirror" Automatica, vol. 20, No. 3, pp. 295-308, 1984. month unknown.
Aubrun Jean-Noel
Lorell Kenneth R.
Reshatoff Paul J.
Feix Donald C.
Gordon Paul
Lockheed Missiles & Space Company Inc.
Smith Jerry
LandOfFree
Adaptive error correction control system for optimizing mirror p does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adaptive error correction control system for optimizing mirror p, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adaptive error correction control system for optimizing mirror p will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-140123