All solid state analog gyromagnetic compass system

Details All solid state analog gyromagnetic compass system All solid state analog gyromagnetic compass system

1975-10-29

1977-03-08

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Gyromagnetic compass

G01C 1738

Patent

active

040105490

ABSTRACT:
An all solid state gyromagnetic compass system operable in the slaved, compass and free gyro modes wherein magnetic compass error rates, fast or slow slaving rates, gyro drift rates, earth's rate and set heading rates are all produced by means of a solid state analog angle rate generator. This generator includes a dual slope integrator responsive to scaled d.c. voltages representing the required rates and which generate shaped sine and cosine control signals therefrom for the various system modes having constant amplitudes and variable frequency representing the required rates. The system outputs are provided in standard three wire synchro format for interfacing with any utilization system requiring conventional slaved gyromagnetic compass data, magnetic compass data or free gyro data.

REFERENCES:
patent: 3831286 (1974-08-01), Conibear
patent: 3837086 (1974-09-01), James
patent: 3844051 (1974-10-01), Wiklund
patent: 3911255 (1975-10-01), Dewar et al.

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