摘要
Abstract
Hemispherical resonator gyro(HRG)has a wide application prospect in fields of satellite,submarine etc, which has the features of high precision reliability,long life span,small volume,light-weight,high-precision and be⁃ing miniaturized. Frequency splitting and inherent rigidity shaft are very important specification for HRG,therefore, it is necessary to design the measurement to identify that. According to the operational principle of the gyroscope , the radial vibration equation of resonator is established while the frequency splitting and inherent rigidity shaft are taken into account,by studying the expression of the main wave and auxiliary wave,the exact expression of vibra⁃tion displacement is given,the measurement and identification method of frequency splitting and inherent rigidity shaft using two groups of electrodes and displacement sensors was designed,and the optimal sample time was given too at last.关键词
导航/半球谐振陀螺仪/频率裂解/固有刚性轴/电极/位移传感器Key words
navigation/hemispherical resonator gyro/frequency splitting/inherent rigidity shaft/actuator/displace-ment sensor分类
航空航天
