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谐振式微光学陀螺标度因数及其非线性度分析

, PP. 1046-1050

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Abstract:

谐振式微光学陀螺(RMOG,ResonatorMicro-OpticGyro)输出标度因数非线性度在大角速度应用时变得明显,影响陀螺性能.理论分析了RMOG中频率调制偏置量对标度因数及其非线性度的影响;根据RMOG谐振腔的谐振输出特性,仿真计算了输入角速度范围内的理论标度因数及其非线性度.利用已知的温度性能测试结果建立了标度因数温度误差模型.搭建RMOG实验系统,实际测量输出标度因数~0.95.模拟和实际转动实验得到±500(°)/s范围内标度因数非线性度分别为6.88×10-4和0.93%,表明通过有效消除环境因素影响,可以使RMOG的输出非线性度满足多数惯性应用的要求.

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