Electricity: motive power systems – Positional servo systems – With stabilizing features
Patent
1980-01-14
1982-04-13
Truhe, J.
Electricity: motive power systems
Positional servo systems
With stabilizing features
318624, 318621, 318566, 318286, 318369, 318372, 318447, 318465, 318489, 318644, 318648, 318675, 73189, G05B 501
Patent
active
043250149
ABSTRACT:
A control unit for automatically controlling the angular position of a reversible, motorized device, such as an antenna rotor, in response to a signal from an external sensor, such as a potentiometer coupled to the rotating shaft of a windvane. The unit includes integrated circuits and other electronic components for monitoring the windvane signal and for activating the rotor, as necessary, to maintain its alignment with the sensed wind direction. The unit also comprises means for providing: a no-response zone of adjustable width about the momentary, average wind direction; an adjustable, time delayed response to changes in wind direction; an automatic reversal of rotation if the rotor approaches the .+-.180.degree. position while searching for the wind direction; an automatic disabling of the rotor for windspeeds less than a selectable, threshold value.
REFERENCES:
patent: 2586010 (1952-02-01), Divoll
patent: 3239735 (1966-03-01), Raider et al.
patent: 3293861 (1960-02-01), Colt
patent: 3641815 (1972-02-01), Fassett
patent: 3991624 (1976-11-01), Davies
Indyk Eugene S.
Truhe J.
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