Aeronautics and astronautics – Spacecraft – Attitude control
Patent
1975-08-20
1977-03-08
Blix, Trygve M.
Aeronautics and astronautics
Spacecraft
Attitude control
244165, B64G 110
Patent
active
040109216
ABSTRACT:
A system for autonomously unloading accumulated angular momentum on space craft reaction wheels in the attitude control systems with external torques generated by the interaction of spacecraft magnetic dipoles with the earth's magnetic field.
An onboard computer receives reaction wheel speed information, wheel speed threshold and geomagnetic latitude information and controls magnetic dipoles that will create a spacecraft torque and desaturate reaction wheels in a closed loop system.
REFERENCES:
patent: 3189298 (1965-06-01), Buckingham et al.
patent: 3813067 (1974-05-01), Mork
patent: 3834653 (1974-09-01), Perkel
"Skewed Versus Orthogonal Reaction Wheels for Outer Planet Exploration," Cummings et al., AAS Conference on the Outer Solar System, June 28-30, 1971, AAS 71-157, pp. 469-493.
Muhlfelder Ludwig
Pistiner Josef Siegfried
Blix Trygve M.
Kelmachter Barry L.
Miller Henry S.
Rusz Joseph E.
The United States of America as represented by the Secretary of
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