ABSTRACT
Gyroscope is a device to measure angular velocity and was historically used for navigation, as reported as early as the 1700s. A simple and idealized system would have worked, if not for the several sources of nonideality associated with a vibratory gyroscope, mostly arising from structure imperfections and imbalances. The operation of a vibratory gyroscope is best understood with the concept of classical rotational dynamics in both preferred inertial and noninertial frames of reference. To underscore the system design principles in a digital gyroscope, it is necessary to motivate the understanding from fundamental principles. The servo loop will consist of applying the right potential to the structures, after sensing the signature of the errors in electronics. Such loops herein are referred to as "electromechanical" loops. A continuous time quadrature tracking loop can be implemented to eliminate the drift. Drive phase error is the phase shift introduced from the electronics in the drive-loop.
