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中文摘要：
为了弄清旋转体自旋角速度不稳定对陀螺稳定性的影响,根据硅微机械陀螺的运动方程,分别给出对高阻尼陀螺和低阻尼陀螺输出信号相对误差的数学模型,理论论证了硅微机械陀螺输出信号的误差主要是阻尼系数和旋转体自旋角速度不稳定造成的。实验结果给出,旋转体自旋角速度不稳定造成的输出电压比例系数误差达4.1%。理论论证和实验验证均表明,对低阻尼陀螺,自旋角速度不稳定对陀螺稳定性影响显著。
英文摘要：
In order to make clear the influence of rotator＇s spinning instability on the gyroscope＇s stability, the mathematical models for relative error＇s of gyroscope output with high damping and low damping were given based on the motion equations of the Si micromachined gyroscope. The paper theoretically demonstrates that the error of the Si micromachined sensor＇s output signals is mainly caused by the instability of damping coefficient and the instability of rotator＇s spinning. The experiment shows that the error of output voltage scale coefficient caused by the angular velocity instability is up to 4.1%. Theoretical demonstration and experimental verification show that the angular velocity instability has significantly effect on the stability of the low damping Si micromachined gyroscope.
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