System for multistation remote position indication and control

Details System for multistation remote position indication and control System for multistation remote position indication and control

1977-08-19

1978-12-26

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

318562, 340169, 343766, G05B 1101

Patent

active

041318390

ABSTRACT:
A system is provided for multistation remote position indication for remotely controlling and indicating the position of a motor driven positioning system, particularly an antenna rotor, at multiple locations utilizing a single pair of control wires to interconnect all remote control units. The system includes the generation of a symmetrical alternating polarity low frequency pulse train which is amplitude modulated by the position of the antenna, display of the antenna position by means of a polarity selective peak detecting voltmeter, and control of the antenna position by means of polarity selective current means through a synchronous detector and antenna drive motor control means.

REFERENCES:
patent: 3043998 (1962-07-01), Lunn et al.
patent: 3729709 (1973-04-01), Augris et al.
patent: 3944903 (1976-03-01), Clegg
patent: 4053818 (1977-10-01), Younkin

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