Abstract: Abstract：With the development of the aerospace technology, the demand for small satellites is increasing gradually. The agility of small satellites is a critical parameter, in the viewpoint of application field expansion and mission return maximization. The control moment gyroscope (CMG) exhibits better performances in terms of torquepower and masstorque characteristics, which make it a key actuator for agile and precise attitude control. In this paper, a miniature CMG is developed for small satellites with 0.1 N·m·s angular momentum. The performance and the environmental tests of the CMG are discussed, which demonstrate that the requirement of small satellites attitude control is perfectly met.  

Key words: Keywords：CMG, small satellites, attitude control