摘要
根据陀螺敏感元件的动力学方程,论证了导致陀螺误差的4个不稳定参数。其中,载体旋转角速度和气体阻尼系数不稳定是主要影响参数。实验结果表明,在低气体阻尼系数情况下,陀螺由于载体旋转角速度不稳定导致输出信号的相对误差高于30%。根据动力学方程建立的二元回归数学模型,得到的相对误差与实验结果相吻合,即理论论证和实验验证相一致。
From the sense organ＇s dynamics equation, the four instability parameters which cause the sensor＇s errors have been analyzed in this paper. The analysis shows that the non-stability of the carrier＇s rotation speed and the damping factor are key influence parameters. The experimental results indicate that the non-stability of the carrierrs rotation speed results in the relative error of output signal more than 30% in the case of the low-damping factor. According to the dynamics equation, the mathematical model is established by binary regression analyses. The results show that the relative error has a good agreement with the experimental results. This indicates that the sensor theory demonstration is in accordance with the experimental demonstration.
出处
《压电与声光》
CSCD
北大核心
2009年第2期172-174,177,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(60472011)
北京市传感器重点实验室资助项目(KM200710772013)
关键词
微机械陀螺
旋转载体
误差分析
回归分析
micro-machined gyroscope
rotating carrier
error analyses
regression analyses
