Free floating gyroscopic compass azimuth pick-off and rotor driv

Details Free floating gyroscopic compass azimuth pick-off and rotor driv Free floating gyroscopic compass azimuth pick-off and rotor driv

1977-03-09

1979-03-13

Martin, Jr., William D.

Geometrical instruments

Indicator of direction of force traversing natural media

Gyroscopically controlled or stabilized

33318, 74 56D, G01C 1928

Patent

active

041434668

ABSTRACT:
An azimuth directional synchro output is provided for a gyroscopic compass, the compass consisting of a pendulous gyrosphere floating within a spherical cavity containing an electrically conductive fluid. By forming one electrode that carries power through the fluid to spin the gyroscope rotor as a band of sinusoidally varying width, four cooperating electrodes equally spaced about the instrument case supply azimuth position data to excite a selsyn data transmitter system. The currents collected by the four cooperating electrodes are proportional to the varying resistances of the respective fluid paths. They generate a vector field within the selsyn system which establishes outputs representing true azimuth bearing within the three selsyn output leads.

REFERENCES:
patent: 3226984 (1966-01-01), Humphrey
patent: 3373617 (1968-03-01), Lassig
patent: 3811328 (1974-05-01), Rodgers et al.
patent: 3915019 (1975-10-01), Zoltan

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