Digital reaction wheel assembly rsi 01-5 for small and low-cost spacecraft

摘要

The RSI 01-5 is a ball bearing momentum/reaction wheel system with digital electronics completely integrated in the wheel housing. It was developed and manufactured for Orbital Sciences Corporation, USA to be used in the ORBCOMM data communication system (a constellation of up to 36 satellites in low Earth orbit). All wheels are in orbit representing a cummulated lifetime of approx. 40 years. An extended version was designed and manufactured for PROBA, an European Space Agency mission to be launched in 2000.