半球谐振陀螺是一种高精度的陀螺仪，谐振子和电极基座是其关键结构件。半球谐振陀螺的装配电容均匀性是影响陀螺性能的关键指标之一。在已有的半球谐振陀螺装配误差影响机理研究中，尚未建立装配误差与电容信号的定量关系模型，故建立了非理想位姿下的半球谐振陀螺装配误差与电容之间的数学模型，并利用 COMSOL 有限元分析软件建立了装配位姿误差与电容之间的仿真模型。通过仿真分析了装配位姿误差对电容的影响规律。研究成果对谐振子与电极基座的装配工艺改进、装配精度提升具有一定的指导意义。

The hemispherical resonator gyroscope （HRG） is a type of high-precision gyroscope. Its core structural components include the harmonic oscillator and the electrode base. One of the critical performance indicators of an HRG is the uniformity of assembly capacitance. Although extensive research has been conducted on the mechanisms by which assembly errors affect HRG performance， a quantitative model describing the relationship between assembly errors and the resulting capacitance signal has yet to be established. In this study， a mathematical model was developed to characterize the relationship between assembly errors and capacitance in an HRG under non-ideal alignment conditions. Additionally， a simulation model was constructed using COMSOL finite element analysis software to explore this relationship. The simulation results offer insights into the effects of assembly pose errors on capacitance， providing a theoretical basis for optimizing the assembly process of the resonator and the electrode base to enhance assembly precision.

TN384；TH824