Efficient mass translation device

Details Efficient mass translation device Efficient mass translation device

1994-07-25

1997-01-28

Barefoot, Galen L.

Aeronautics and astronautics

Spacecraft

Attitude control

244 93, 244170, B64G 124

Patent

active

055971415

ABSTRACT:
A dynamic balance mechanism for balance control of a gyro stabilized (spinning) satellite is disclosed. An elongated gear rack is attached to the spacecraft. A movable mass is mounted by guide rollers on the gear rack and translates along the gear rack according to requisite electronic commands. The movable mass includes a housing, a stepper motor, a rotary potentiometer, a cable reel, a pair of gear heads and a pinion gear. The pinion gear meshes with the rack and is driven by the stepper motor. The potentiometer measures the position of the movable mass on the gear rack. The cable reel saves space and minimizes harness jamming conditions. The invention secures better weight efficiency.

REFERENCES:
patent: 1853233 (1932-04-01), Schwarz
patent: 3516623 (1970-06-01), Sinden
patent: 4470568 (1984-09-01), Nuefeld

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