Adaptive compass drive system

Details Adaptive compass drive system Adaptive compass drive system

1976-01-05

1978-01-03

Sloyan, Thomas J.

Communications: electrical

Audible indication

Percussion-type sound producer

33363R, 318654, H03K 1302

Patent

active

040670074

ABSTRACT:
A radar system having an adaptive compass drive capable of operation over a wide variety of compass outputs and supply voltages and frequencies. For compass outputs in the form of multi-phased analog signals, a digital phase detector converts the signals to a series of digital pulses which are used to operate a three-phase to UP-DOWN pulse converter. If the gyro compass output signals are in the form of overlapping digital signals, the converter changes the signals directly to a sequence of UP or DOWN pulses. The UP-DOWN pulses are used to operate a binary counter which operates the phases of a multi-phased stepper motor which is coupled to the true bearing scale of the radar system the output of which may also be used to operate a north stabilization synchro converter for the radar display.

REFERENCES:
patent: 3914759 (1975-10-01), Herchenroeder
patent: 3921305 (1975-11-01), King et al.
patent: 3970942 (1976-07-01), Mayer

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