A new embedded control system for SUSI

Abstract

The Sydney University Stellar Interferometer uses embedded processors to control each siderostat station as well as other major components of the instrument. The maintenance of the original controllers has become a significant issue and we set out to design a new system that would be inexpensive, suitable for the relatively harsh operating environment and simple to maintain. We have demonstrated that the new system works satisfactorily and we are currently replacing the existing controllers with new ones.