System for transmitting heading information from a compass to se

Details System for transmitting heading information from a compass to se System for transmitting heading information from a compass to se

1980-07-10

1982-04-27

Robinson, Thomas A.

Communications: electrical

Continuously variable indicating

With particular transmitter

33363R, 318690, G05B 1112, G08C 1906

Patent

active

043273637

ABSTRACT:
A synchro transmitter having a rotor driven by a compass communicates the heading information from that compass to a plurality of loads via respective synchro receivers whose rotors are energized with direct current or carry permanent magnets and whose stators are supplied with a triad of d-c signals from three modular units each having one input connected to an output lead of a respective stator winding of the transmitter and another input connected in parallel with a winding on the transmitter rotor to a source of alternating current. A demodulator in each unit compares the current of the respective output lead with the reference current from the a-c source and feeds the result to an integrating operational amplifier which emits the corresponding d-c signal.

REFERENCES:
patent: 2418193 (1947-04-01), Peterson
patent: 3564381 (1971-02-01), Parfomak et al.

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