光纤陀螺的振动特性研究

光纤陀螺作为机载导航设备应用时,环境振动对陀螺精度的影响不容忽视。现初步探讨了光纤陀螺的振动特性。通过ANSYS有限元振动模态分析与正弦扫频振动下的陀螺零偏输出实验,研究了单轴光纤陀螺的结构体共振频率以及振动对陀螺性能的影响,并在此基础上,提出了陀螺结构设计的改进方法。

Study on characteristic of vibration of Fiber Optical Gyroscope

Fiber Optical Gyroscope(FOG) is becoming affordable for many applications such as vehicle navigation and stabilization. Operating under the circumstance of which, vibration can′t be ignored. This paper researched into the characteristic of vibration of single axis FOG. Based on the model analysis using ANSYS(finite element analysis software) and experiment of FOG′s zero drift under sinusoidal frequency scan vibration, we studied the framework′s resonance frequency of single axis FOG and the impact on FOG′s characteristic from vibration. At last, we brought forward the methods to improve on the framework design of FOG.