Daniel Choi
Masdar Institute of Science and Technology
United Arab Emirates
Title: Navigation-grade micro gyroscope for space applications
Biography
Biography: Daniel Choi
Abstract
Navigation, guidance and control systems in spacecrafts require gyroscope to maintain orientation in flight even in case of undesired interference. Particularly, the measurement of the angular motion of a satellite in the space is crucial for the control and stabilization of its attitude. Space systems employing a gyroscope should include the control and processing appropriate electronics to provide the most direct method for sensing inertial angular velocity. Navigation systems for spacecraft require gyroscope with a sensitivity as low as 10-100o/s, attitude and heading reference systems in the airplane use 1o/s gyroscope, while precision inertial navigation systems such as spacecrafts and satellites need a sensitivity value as high as 0.01-0.001o/s. In order to meet the space requirements, we are developing an innovative, affordable, miniature, low-power, navigation-grade integrated micro gyroscope that applies proven technology to achieve the performance, size, power, and cost objectives for space applications. Our proposed 3D design of devices enables (1) omni-directional detection, (2) an easier-mobile function (small size, magnetically guided by coating with magnetic materials), (3) a self-powering function (equipped with nano-energy devices), and (4) easier transmitting the sensing data (equipped with wireless communication devices), (5) densification and better spatial resolving power (enabling 3D integration).