连续旋转的光纤陀螺全温失准角快速建模与补偿方法

发布时间：2018-05-26 08:30

本文选题：光纤陀螺 + 输入轴失准角　；参考：《中国惯性技术学报》2017年05期

【摘要】：在全温范围内应用的光纤陀螺,其输入轴失准角随温度的变化是影响光纤陀螺惯性系统性能的重要指标之一。特别是在大角速率或者高精度应用时,失准角的变化误差甚至超过零偏漂移误差和标度因数误差。采用温度补偿技术是一种提升光纤陀螺温度性能的有效方法,其中建立精确的温度模型是关键。提出了一种连续旋转的光纤陀螺全温失准角快速建模补偿方法。基于单轴速率转台的连续旋转,可以有效识别光纤陀螺失准角在全温范围内的变化拐点,提高建模和补偿的精度。试验结果表明,某型光纤陀螺全温输入轴失准角变化约14″,补偿后全温输入轴失准角变化小于1″,精度提高了一个数量级以上。在高精度光纤陀螺惯性系统中,该方法可用于指导光纤陀螺失准角的实时温度补偿技术研究及工程实现。
[Abstract]:For fiber optic gyroscope (fog) which is used in full temperature range, the change of input axis misalignment angle with temperature is one of the important indexes that affect the performance of fog inertial system. Especially in the application of large angular rate or high precision, the error of misalignment is even greater than that of zero offset drift error and scale factor error. Temperature compensation is an effective method to improve the temperature performance of fiber optic gyroscope (fog). This paper presents a fast modeling compensation method for full temperature misalignment of fiber optic gyroscope (fog) with continuous rotation. Based on the continuous rotation of the uniaxial speed turntable, the inflection point of the fiber optic gyroscope (fog) misalignment angle can be effectively identified in the full temperature range, and the accuracy of modeling and compensation can be improved. The experimental results show that the misalignment angle of the full temperature input axis of a fiber optic gyroscope is about 14 ", and the error angle of the full temperature input axis is less than 1" after compensation, and the precision is improved by more than one order of magnitude. In high-precision fog inertial system, this method can be used to guide the research and engineering realization of real-time temperature compensation of fog misalignment angle.
【作者单位】：天津航海仪器研究所;
【基金】：装发部装备预研项目(41417010102)
【分类号】：TP212

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