Time-division multiplexing for micro-miniature fiber-optic gyroscopes

MA Dong-ying; SONG Ning-fang; Jin Jing; SONG Jing-ming

doi:10.3788/OPE.20101810.2171

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Time-division multiplexing for micro-miniature fiber-optic gyroscopes

Article | 更新时间：2020-08-12

- Time-division multiplexing for micro-miniature fiber-optic gyroscopes
- Optics and Precision Engineering Vol. 18, Issue 10, Pages: 2171-2177(2010)
- 作者机构：
  
  北京航空航天大学仪器科学与光电工程学院,北京 100191
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20101810.2171
  CLC： TN253;V241.5
- Received：15 October 2009，
  
  Revised：28 December 2009，
  
  Published Online：28 October 2010，
  
  Published：20 October 2010
- 稿件说明：
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马东营, 宋凝芳, 金靖, 宋镜明. 微小型光纤陀螺组合分时复用技术[J]. 光学精密工程, 2010,18(10): 2171-2177

MA Dong-ying, SONG Ning-fang, Jin Jing, SONG Jing-ming. Time-division multiplexing for micro-miniature fiber-optic gyroscopes[J]. Editorial Office of Optics and Precision Engineering , 2010,18(10): 2171-2177
马东营, 宋凝芳, 金靖, 宋镜明. 微小型光纤陀螺组合分时复用技术[J]. 光学精密工程, 2010,18(10): 2171-2177 DOI： 10.3788/OPE.20101810.2171.

MA Dong-ying, SONG Ning-fang, Jin Jing, SONG Jing-ming. Time-division multiplexing for micro-miniature fiber-optic gyroscopes[J]. Editorial Office of Optics and Precision Engineering , 2010,18(10): 2171-2177 DOI： 10.3788/OPE.20101810.2171.

摘要

为了有效减小多轴光纤陀螺组合的功耗、体积和重量

实现光纤陀螺组合的微小型化

应用分时复用技术

提出了一种基于33耦合器

工作在850 nm短波长的光纤陀螺分时复用组合结构。分析了陀螺输出数据处理方法

得到了分时复用光纤陀螺组合的相对极限零偏稳定性。建立了分时复用光纤陀螺切换模型

揭示了分时复用导致光纤陀螺轴向切换必然存在一个过渡过程

分析了过渡过程对陀螺组合静态、动态特性的影响。结果显示

光纤陀螺组合的相对零偏稳定性是传感方法的2.1倍

最大输入信号检测带宽为1.1 kHz

标度因数的不对称性和非线性度均小于5010

-6

。最后

通过仿真进行了实验验证

结果表明

该技术可以用于中低精度微小型多轴光纤陀螺组合中。

Abstract

To reduce the power consumption

volume and the weight of a fiber optic gyroscope

the structure of a time division multiplexing fiber-optic gyroscopic system worked at 850 nm was presented based on a 33 coupler. The data processing method of gyroscopic output was analyzed

and the relative bias stability of the time division multiplexing system was obtained. A switching model of the time division multiplexing fiber-optic gyroscope was established

which pointed out that there is a transient process in axis switching. The effects of the transient process on the static and dynamic characteristics of the gyroscopic system were analyzed

which shows that the relative bias stability is about 2.1 times that of the traditional method

the maximum bandwidth is about 1.1 kHz and both the nonlinearity and uniformity of the real scale factor are less than 5010

-6

. Finally

the results were tested and verified by simulations and experiments

and results indicate that the time division multiplexing can satisfy the requirements of applications to micro-miniature fiber-optic gyroscopes.

关键词

Keywords

references

HERVE C. The Fiber-optic Gyroscope [M]. London: ArtechHouse, 1993.[2] 王德,李学千. 半导体激光器的最新进展及其应用现状[J]. 光学精密工程,2001,9(3):279-283. WANG D, LI X Q. New progress in semiconductor lasers and their applications [J]. Opt. Precision Eng., 2001,9(3):484-491.(in Chinese)[3] 李建利,房建成,盛蔚,等. 双质量块调谐输出式硅MEMS陀螺仪的理论计算及仿真[J]. 光学精密工程,2008,16(3):484-491. LI J L, FANG J C, SHENG W, et al.. Calculation and simulation of silicon MEMS gyroscope with dual-mass resonant output [J]. Opt. Precision Eng., 2008,16(3):484-491.(in Chinese)[4] 潘雄,宋凝芳,金靖,等. 三轴一体轻小型光纤陀螺仪的时序设计[J]. 北京航空航天大学学报,2006,32(11):13377-1379. PAN X, SONG N F, JIN J, et al.. Timing for miniaturized three-cluster fiber optic gyro[J].Journal of Beijing University of Aeronautics and Astronautics, 2006,32(11):13377-1379. (in Chinese)[5] 冯丽爽,徐小斌. 光纤陀螺光路小型化技术[J]. 中国惯性技术学报,2006,14(4):49-52. FENG L S, XU X B. Miniaturization optical techniques of fiber optic gyro[J].2006,14(4),49-52.(in Chinese)[6] JIN W, CULSHAW, XU Y Z. Multiplexing of fiber optic gyroscope[J].SPIE, 2837,1993:140-151.[7] 李丽,林玉池,付鲁华. 光纤光栅空分光复用传感系统的研究[J]. 光学精密工程,2007,15(4):473-477. LI L, LIN Y C, FU L H. Research on spatial division multiplexing of fiber Bragg grating sensors [J]. Opt. Precision Eng., 2007,15(4):473-477.(in Chinese)[8] GJB 2426A_2004 光纤陀螺仪测试方法[S]. GJB 2426A_2004 The test method of fiber optic gyroscope[S].[9] 李颖,陈兴林,宋申民. 小波神经网络用于光纤陀螺漂移误差辨识[J]. 光学精密工程,2007,15(5):773-778. LI Y,CHEN X L,SONG S M. Application of wavelet neural network for identification of drifts errors in fiber optical gyroscope [J]. Opt. Precision Eng., 2007, 15(5):773-778.(in Chinese)[10] HAN J L, GE S M. Modeling and Simulation of digital closed-loop fiber optic gyroscope .Proceedings of the 6th World Congress on Intelligent Control and Automation, 2006, Dalian, China.[11] MICHAEL S. Stochastic and dynamic modeling of fiber gyros [J]. SPIE, 1994, 2292:240-253.[12] RALPHA A. Simplified control theory for closed-loop fiber-optic gyroscopes [J]. SPIE,1992,1795:105-117.

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