Modal Analysis of Ring Gyroscope

• Main Authors: Jr-Cheng Lou, 盧志誠
• Other Authors: 周傳心
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/32321031944747373417

碩士 === 國立臺灣大學 === 應用力學研究所 === 97 === Research of Gyro has been developed for many years. It is used on airplane、ship and satellite for military affairs a long time ago then now it is applied to car or game industry and kinds of gyro evolved from rotor gyro into vibrating gyro or fiber gyro. The paper primarily study vibrating gyro because that can improve restrictions of rotor gyro including life and time of switch. There are all kinds of vibrating gyro include tuning fork gyro, rod gyro and hemispheres, and in this paper, the study main apply metallic ring which is driven and sense by piezoelectric material. So it can make the vibrating gyro vibrate without input signal and restrain vibrating in the node which can use force-balance method to check angular velocity between voltages in the future. According to experiment result, it can make sure the first natural frequency of the vibrating ring-gyro and design feedback circuit to let the ring vibrate without inputting signal in the first natural frequency and restrain to vibrate in the node. From the result, the metallic ring can achieve my demands. It must improve signal in the circuit and reduce affect from noise which will make for sensing angular velocity between voltages with force-balance method in the future.