A Cryo-Vacuum Compatible Positioning System CRP

Space-based systems have become indispensable elements of global communication, militaryreconnaissance and scientific research. The expenses associated with any space launch areenormous and, once in orbit, a system failure can have catastrophic consequences. ExtensiveEarth-based testing is essential to ensure a high success rate. To approximate the demands of space deployment, the Air Force maintains large test chambers capable of creating low temperature, high vacuum environments. However, the motion control mechanisms within these chambers are often poorly suited to the harsh cryo-vac environment, and failures are not uncommon. A program of applied research is proposed to develop a family of versatile, high-precision positioning systems fully compatible with space chamber environments. Under Phase II, research will continue into motion technologies that are inherently more compatible with cryo-vac conditions and design strategies with the potential for further improving the performance of these technologies. Ultimately, a six degree-of-freedom Tri-Sphere positioning system will be built and validated.