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single-gimballed momentum wheel [1 record]

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Record 1 2007-04-05

English

Subject field(s)
  • Navigation Instruments
  • Spacecraft
OBS

gimballed momentum wheel: Better attitude control and energy storage can be achieved by using a pair of counter-rotating micro wheels. This configuration enables micro-satellites to change their angular momentum and orientation with very little net change in stored energy. Likewise, energy can be extracted or added to a pair of wheels without changing the satellite's attitude. Power can be saved while using a regenerative brake state to decrease the speed, or this braking energy can be used to accelerate the other micro-wheel rotating in the opposite direction in a gimballed momentum wheel. Thus, it can sustain spacecraft with limited power during a short-term space mission.

Key term(s)
  • single gimballed momentum wheel

French

Domaine(s)
  • Instruments de navigation
  • Engins spatiaux

Spanish

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