원문정보
초록
영어
Gyroscopes applications are widely used for measuring angular velocity and angular rotation of objects. For working of a vibratory gyroscope, it needs to be excited at its resonant frequency. An electronic circuit is necessary to drive gyro vibrating. This circuit is also named oscillation loop. To get best performance of a gyro, the oscillation loop has to drive gyro oscillating at its fixed resonant frequency and maintain gyro's vibration amplitude at prescribed value. That means the oscillation loop has two parts: phase (frequency) control part and amplitude control part. This paper is written to introduce phase locked loop (PLL) technique to design a phase control loop for vibratory gyroscopes, in this case is a hemispherical resonating gyroscope (HRG).
목차
I. Introduction
II. HRG Dynamics
2.1 Equations of Motion of the Generic Vibratory Gyroscope
2.2 Gyro op-amp circuit
2.3 Phase contorl loop
2.4 Phase locked loop
2.5 Phase control loop design using PLL working range
2.6 Simulation results
III. Conclusion
References