光纤陀螺标度因数迟滞模型分析与补偿技术

发布时间：2018-06-21 06:08

  本文选题：光纤陀螺 + 标度因数模型　； 参考：《中国惯性技术学报》2017年04期

【摘要】：高精度惯性导航系统对由温度引起的光纤陀螺标度因数变化指标提出了很高的要求。采用温度补偿技术是一种提升标度因数性能的有效方法,其中建立精确且普适的温度模型是关键。提出并分析了光纤陀螺温度与标度因数模型的迟滞现象。通过分析和试验表明,标度因数模型的迟滞现象是由光纤陀螺结构的热不均匀性造成的,采用多温度点采样来修正标度因数模型的方法可以有效避免模型的迟滞现象,提升标度因数模型的补偿效果,使光纤陀螺可以适应各种温度变化的环境。在-40℃~+60℃范围内同时对光纤环圈和光源的温度进行采集,并利用光源温度与平均波长的关系来修正标度因数模型,通过模型修正可以将光纤陀螺全温标度因数稳定性指标由常规模型下的36×10~( 6)提升到12×10~( 6)。
[Abstract]:The high precision inertial navigation system has put forward the very high request to the change index of scale factor of fog caused by temperature. Temperature compensation is an effective method to improve the performance of scale factor, and the key is to establish an accurate and universal temperature model. The hysteresis phenomenon of fog temperature and scale factor model is proposed and analyzed. The results of analysis and experiment show that the hysteresis of scale factor model is caused by the thermal inhomogeneity of fiber optic gyroscope, and the hysteresis of the model can be effectively avoided by adopting multi-temperature sampling to modify the scale factor model. The compensation effect of scale factor model is improved so that fiber optic gyroscope can adapt to various temperature variation environment. In the range of -40 鈩，

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