Fiber optic gyroscope vibration error due to fiber tail length asymmetry based on elastic-optic effect

被引：27

作者：

Zhang, Yonggang ^{[1
]}

Gao, Zhongxing ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Automat, Harbin 150001, Heilongjiang, Peoples R China

来源：

OPTICAL ENGINEERING | 2012年 / 51卷 / 12期

关键词：

fiber optic gyroscope; elastic-optic effect; fiber tail asymmetry; vibration error;

D O I：

10.1117/1.OE.51.12.124403

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the assembly of fiber optic gyroscope (FOG), the summation of the fiber tail length of waveguide and fiber ring in two directions cannot be exactly equal (i.e., fiber tail length of FOG in two directions is asymmetry). We analyze and calculate the vibration error of FOG due to this fiber tail length asymmetry based on elastic-optic effect. Inertial navigation simulation is performed to show attitude and positioning errors caused by this vibration error, which clearly shows the importance of reducing fiber-tail length asymmetry in high-accuracy applications. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.12.124403]

引用

页数：6

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