作　　者： (苏中）; (李擎）;

机构地区： 北京信息科技大学高动态导航技术北京市重点实验室

出　　处： 《导航与控制》 2015年第3期15-20,47,共7页

摘　　要： 金属壳固体波动陀螺是利用驻波的进动特性来敏感输入角速率的一种新型壳体振动陀螺,具有结构简单、功耗低、抗冲击性强、稳定性高等优点,可广泛应用于中低精度角速度测量领域。针对金属壳固体波动陀螺信号提取方法进行研究,在分析其工作原理和基本数学模型的基础上,提出利用四回路控制方法,进行角速度解算。首先,通过激励电极和反馈电极对振子振动特性进行控制;其次,通过阻尼电极和检测电极抑制振子振型偏移:最后,根据阻尼控制力解算出输入角速度。通过仿真计算,给出了角速度解算结果,验证了该方法的有效性。 The metal shell Solid Vibratory Gyro(SVG) is a novel shell vibratory gyroscope which is inspired by the Chinese traditional bell.The SVG has the advantages of low cost,low power consumption,long work life,high sensitivity,a better impact resistance property,and so on,and has been widly used in low and medium angular velocity measurements.This paper focuses on the signal extraction method for SVG.It presents the method based on the four control loops,after analyzes the working principle and model.Firstly,it sustains the SVG’ s vibratory character using excitation element and feedback element.Secondly,it restrains deflection of mode shape using damp element and detection element.Finally,it calculates the angular velocity through the damp control value.The numerical simulation is presented to verify the effectiveness of the proposed control scheme using the SVG parameters.

关 键 词： 金属壳固体波动陀螺 钟形振子 哥氏振动陀螺 陀螺信号提取