Analysis on Node Position of Imperfect Resonators for Cylindrical Shell Gyroscopes

作者：Wang, Zidan; Wu, Yulie^*; Xi, Xiang; Zhang, Yongmeng; Wu, Xuezhong^*

来源：Sensors (Switzerland), 2016, 16(8): 1206.

DOI：10.3390/s16081206

• node position
• imperfect resonator
• trimming method

For cylindrical shell gyroscopes, node position of their operating eigenmodes has an important influence on the gyroscopes' performance. It is considered that the nodes are equally separated from each other by 90 degrees when the resonator vibrates in the standing wave eigenmode. However, we found that, due to manufacturing errors and trimming, the nodes may not be equally distributed. This paper mainly analyzes the influences of unbalanced masses on the cylindrical resonators' node position, by using FEM simulation and experimental measurement.

• 出版日期2016-8
• 单位中国人民解放军国防科学技术大学