scholarly journals Theoretical Design of a Depolarized Interferometric Fiber-Optic Gyroscope (IFOG) on SMF-28 Single-Mode Standard Optical Fiber Based on Closed-Loop Sinusoidal Phase Modulation with Serrodyne Feedback Phase Modulation Using Simulation Tools for Tactical and Industrial Grade Applications

Sensors ◽  
2016 ◽  
Vol 16 (5) ◽  
pp. 604 ◽  
Author(s):  
Ramón Pérez ◽  
Ignacio Álvarez ◽  
José Enguita
Keyword(s):  
Optical Fiber ◽  
Phase Modulation ◽  
Closed Loop ◽  
Fiber Optic ◽  
Single Mode ◽  
Fiber Optic Gyroscope ◽  
Simulation Tools ◽  
Theoretical Design ◽  
Industrial Grade ◽  
Feedback Phase

Closed-loop fiber-optic gyroscope

1991 ◽  
Author(s):  
Zhen-he Fang ◽  
Zhaoming Huang ◽  
Yu-qing Shen
Keyword(s):  
Closed Loop ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope

Automated Fiber-Optic System for Monitoring the Stability of the Pit Quarry Mass and Dumps

2021 ◽  
pp. 19-26
Author(s):  
А.D. Меkhtiyev ◽  
◽  
E.G. Neshina ◽  
P.Sh. Madi ◽  
D.A. Gorokhov ◽  
...  
Keyword(s):  
Rock Mass ◽  
Optical Fiber ◽  
Optical Fibers ◽  
Fiber Optic ◽  
Light Wave ◽  
Single Mode ◽  
Fiber Optic Sensors ◽  
Fiber Optic Sensor ◽  
Laboratory Sample ◽  
Single Mode Optical Fiber

This article ls with the issues related to the development of a system for monitoring the deformation and displacement of the rock mass leading to the collapse of the quarry sides. Monitoring system uses point-to-point fiber-optic sensors. Fiber-optic sensors and control cables of the communication line are made based on the single mode optical fibers, which allows to measure with high accuracy the deformations and displacements of the rock mass at a distance of 30-50 km. To create fiber-optic pressure sensors, an optical fiber of the ITU-T G. 652.D standard is used. Laboratory sample is developed concerning the point fiber-optic sensor made based on the two-arm Mach-Zender interferometer using a single mode optical fiber for monitoring strain (displacements) with a change in the sensitivity and a reduced influence of temperature interference leading to zero drift. The article presents a mathematical apparatus for calculating the intensity of radiation of a light wave passing through an optical fiber with and without mechanical stress. A laboratory sample of single mode optical fibers based on the Mach-Zender interferometer showed a fairly high linearity and accuracy in the measurement and can be used to control the strain of the mass after appropriate refinement of its design. Mathematical expressions are also given for determining the intensity of the light wave when the distance between the fixing points of a single mode optical fiber changes depending on the change in the external temperature. A diagram for measuring strain using a point fiber-optic strain sensor is developed. Hardware and software package is developed, which can be used to perform a number of settings of measuring channels. The work is aimed at solving the production problems of the Kenzhem quarry of AK Altynalmas JSC.

Research on Dynamic Model of Digital Closed-Loop Fiber Optic Gyroscope

2013 ◽  
Vol 40 (2) ◽  
pp. 0205002
Author(s):  
王夏霄 Wang Xiaxiao ◽  
张猛 Zhang Meng ◽  
李传生 Li Chuansheng ◽  
王爱民 Wang Aimin ◽  
彭志强 Peng Zhiqiang
Keyword(s):  
Dynamic Model ◽  
Closed Loop ◽  
Fiber Optic ◽  
Fiber Optic Gyroscope

Study on the Axial Magnetic Field Sensitivity in Optical Fiber Coil of Fiber Optic Gyroscope

2015 ◽  
Vol 42 (8) ◽  
pp. 0805005
Author(s):  
王夏霄 Wang Xiaxiao ◽  
冯志芳 Feng Zhifang ◽  
秦祎 Qin Yi ◽  
于佳 Yu Jia ◽  
吕江涛 Lü Jiangtao
Keyword(s):  
Magnetic Field ◽  
Optical Fiber ◽  
Fiber Optic ◽  
Axial Magnetic Field ◽  
Fiber Optic Gyroscope ◽  
Field Sensitivity ◽  
Fiber Coil

Influence of single mode fiber bending on fiber optic gyroscope scale factor stability

2016 ◽  
Vol 45 (1) ◽  
pp. 0122001
Author(s):  
谢良平 Xie Liangping ◽  
李 瑞 Li Rui ◽  
张 斌 Zhang Bin ◽  
王京献 Wang Jingxian ◽  
张春熹 Zhang Chunxi
Keyword(s):  
Fiber Optic ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Scale Factor ◽  
Fiber Optic Gyroscope
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