Microtechnology for space systems

Microelectromechanical systems (MEMS) are micron-to-millimeter size electromechanical devices that are fabricated using modified semiconductor batch-fabrication techniques. We believe that MEMS technology will have a significant impact on future space systems by (1) reducing the size, mass, power, and cost of individual sensors and actuators used throughout spacecraft and launch vehicles and (2) ultimately reducing overall spacecraft size. At the Aerospace Corporation, we are focusing on near and far-term applications of MEMS in space systems for reduced mass, improved performance, higher reliability, increased health and status awareness, and reduced life cycle costs. Specific tasks include the development of micro-propulsion technology for microsatellites (1-to-100 kg mass) and nanosatellites (1-to-1000 gram mass), the development of a flight-qualifiable GN&C (guidance, navigation, and control) unit using a GPS receiver and MEMS inertial sensors, and the development of a MEMS-based wireless multiparameter sensor