Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1980-10-27
1983-03-08
Phillips, Charles E.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33402, G01C 906, G01C 912
Patent
active
043757278
ABSTRACT:
A cant angle sensor comprises a conductive, nonmagnetic pendulum suspended from the shaft of a resolver for limited angular travel in the slot of a C-shaped magnet. When the angle of the sensor changes, the pendulum seeks a new vertical null, and the C-shaped magnet exerts a viscous hystersis damping force causing the pendulum to quickly come to rest without oscillation. The rotor magnet wire of the resolver is connected directly to output terminals to avoid friction due to brush contact on the rotor shaft.
REFERENCES:
patent: 2803887 (1957-08-01), Fry
patent: 3081552 (1963-03-01), Reason
patent: 4163325 (1979-08-01), Hughes
McAdams, Jr. Hugh P.
Paulovitz Albert C.
Litton Systems Inc.
Phillips Charles E.
Ribando Brian L.
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