针对半球谐振陀螺仪的工艺制造偏差，研究半球谐振子薄壁厚度不均匀对陀螺精度的影响，建立误差模型，分析误差机理。
For the HRG's technology fabrication deviation, effect of the resonator's thickness nonuniformity on the gyro accuracy is studied. The error model is established and the error mechanism is analyzed.
谐振陀螺是一种不存在高速转子和活动支承的新型陀螺仪。
The resonator gyro is a new type of gyro without spinning-wheel and bearing.
测试结果表明，该单片三轴硅微机械振动陀螺仪驱动模态的实际谐振频率与理论值之间的最大误差小于5%，满足设计要求。
The results indicated that the maximum error of the resonant frequencies be - tween the practical values and the theoretical ones was within 5%, meeting the design requirements.
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