单光纤光纤陀螺误差分析

Analysis for error of one-fiber fiber optical gyroscope

单光纤光纤陀螺采用的是单光纤在线制作技术。由于这种方法是把所有的光器件都放在一根光纤上制作,因此各光器件的连接处没有融接点,并且光器件的性能可在线控制。在分析其结构的基础上建立了开环FOG的光学模型,并进行了误差分析。指出了单光纤光纤陀螺方案是低成本、高可靠性、易于工程化的一种方案。

On line manufacturing technique is used in onefiber fiber optical gyroscope (FOG). In this method, only one fiber is used to form all optical components, so that optic connection between components is without splicing, and performances of each component can be controlled in process. After the analysis of the structure of FOG, the optical model of openloop FOG is built, and the error is analyzed. Finally, it points out that the scheme of onefiber FOG is lowcost, high reliability and easy engineering realization.