Sensor deployment mechanism for Surfer satellite

Abstract

A design is presented for a sensor-deployment mechanism to be used aboard the Surfer satellite, from which scientific instruments will be extended to study the earth ionosphere during the Space Shuttle Tether Experiment. The design discussed uses four folding arms to extend the radial sensors, as well as two storable tubular extendible members or spirally wound self-extending tube booms to project the axial sensors outward. The design solution chosen, a folding arm, is discussed in detail with attention to mechanical operation and component functions. Test program results are presented.