Application of fiber Bragg grating sensing technology in long-distance detection of temperature in weapon depots

2010 ◽  
Author(s):  
Jianguo Xu ◽  
ZhiLi Zhang ◽  
Bing Zhao ◽  
Zhulin Fu
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Long Distance ◽  
Sensing Technology

scholarly journals Application of Multiscale Fiber Optical Sensing Network Based on Brillouin and Fiber Bragg Grating Sensing Techniques on Concrete Structures

2012 ◽  
Vol 8 (10) ◽  
pp. 310797 ◽  
Author(s):  
Xuefeng Zhao ◽  
Jie Lu ◽  
Ruicong Han ◽  
Xianglong Kong ◽  
Yanhong Wang ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Fiber Bragg Grating ◽  
High Sensitivity ◽  
Bragg Grating ◽  
Accurate Information ◽  
Long Distance ◽  
Fiber Sensing ◽  
Sensing Technology ◽  
Optical Fiber Sensing ◽  
Distributed Optical Fiber

The paper reports the application of the distributed optical fiber sensing technology and the FBG sensing technology in bridge strain monitoring; the overall changeable characteristics of the whole structure can be obtained through the distributed optical fiber sensing technology (BOTDA), meanwhile the accurate information of local important parts of the structure can be obtained through the optical fiber Bragg grating sensor (FBG), which can improve the accuracy of the monitoring. FBG sensor has a high sensitivity, but it can only realize the measurement of local discrete points for the quasidistributed sensing. BOTDA can realize the long distance and distributed measurement, but its spatial resolution is not high. FBG and BOTDA were applied together in bridge monitoring in this test, taking full advantage of the distributed BOTDA on the overall strain measurements of the structure, as well as monitoring the key parts by the arrangement of FBG. The combined application of BOTDA and FBG can achieve the overall monitoring from point to line and then to the surface and, therefore, obtain more comprehensive information on the strain of the test structure.

scholarly journals Slope monitoring and stability analysis of open pit mine based on fiber Bragg grating sensing technology

2018 ◽  
Vol 1065 ◽  
pp. 252002 ◽  
Author(s):  
Ligang Wang ◽  
Lewen Yu ◽  
Yuansheng Zhang ◽  
Da Zhang ◽  
Zhigang Tao ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Fiber Bragg Grating ◽  
Open Pit Mine ◽  
Open Pit ◽  
Bragg Grating ◽  
Sensing Technology ◽  
Slope Monitoring

Longdistance Fiber Bragg Grating Sensor System Based on Time Division Multiplexing and Narrow Wavelength Swept Laser

2010 ◽  
Vol 39 (11) ◽  
pp. 2004-2007
Author(s):  
刘川 LIU Chuan ◽  
饶云江 RAO Yunjiang ◽  
冉曾令 RAN Zengling ◽  
封莎 FENG Sha
Keyword(s):  
Fiber Bragg Grating ◽  
Fiber Bragg Grating Sensor ◽  
Sensor System ◽  
Bragg Grating ◽  
Long Distance ◽  
Time Division Multiplexing ◽  
Time Division ◽  
Bragg Grating Sensor
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