A novel fiber sensor study on direct current based on fiber loop ring down spectroscopy

2008 ◽  
Author(s):  
Liqiang Cui ◽  
Shuqiang Chen ◽  
Yishen Qui ◽  
Zhihao Chen
Keyword(s):  
Direct Current ◽  
Fiber Sensor ◽  
Loop Ring ◽  
Fiber Loop

An optic fiber sensor for multiple gases based on fiber loop ring-down spectroscopy and microring resonator arrays

2016 ◽  
Vol 12 (4) ◽  
pp. 312-315
Author(s):  
Xin Zhang ◽  
Jia-wen Jian ◽  
Yan-gong Zheng ◽  
Han Jin ◽  
Jie Zou
Keyword(s):  
Microring Resonator ◽  
Fiber Sensor ◽  
Optic Fiber ◽  
Resonator Arrays ◽  
Loop Ring ◽  
Fiber Loop

scholarly journals Novel gas sensor combined active fiber loop ring-down and dual wavelengths differential absorption method

2014 ◽  
Vol 22 (9) ◽  
pp. 11244 ◽  
Author(s):  
Yanjie Zhao ◽  
Jun Chang ◽  
Jiasheng Ni ◽  
Qingpu Wang ◽  
Tongyu Liu ◽  
...  
Keyword(s):  
Gas Sensor ◽  
Absorption Method ◽  
Differential Absorption ◽  
Active Fiber ◽  
Loop Ring ◽  
Differential Absorption Method ◽  
Fiber Loop

Curvature sensor based on SMF taper in fiber loop ring down system

2019 ◽  
Vol 52 ◽  
pp. 101977
Author(s):  
Wen Wei Chen ◽  
Chun Liu Zhao ◽  
Zhao Kun Wang ◽  
Bang Ning Mao
Keyword(s):  
Loop Ring ◽  
Curvature Sensor ◽  
Fiber Loop

Tentative Measurement Researches on Fiber Loop Ring-Down Cavity Coated with Carbon Nanotubes

2010 ◽  
Vol 37 (6) ◽  
pp. 1450-1455
Author(s):  
姜萌 Jiang Meng ◽  
张伟刚 Zhang Weigang ◽  
颜爱东 Yan Aidong ◽  
陶魁园 Tao Kuiyuan ◽  
尚佳彬 Shang Jiabin ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Loop Ring ◽  
Fiber Loop

scholarly journals Static Ice Pressure Measuring System Based on Fiber Loop Ring-Down Spectroscopy and FPGA

Sensors ◽  
2020 ◽  
Vol 20 (20) ◽  
pp. 5927
Author(s):  
Xiao Deng ◽  
Dingrui Wang ◽  
Lipeng Pan ◽  
Li Zhang ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Optical Fiber Sensor ◽  
Temperature Stability ◽  
Field Application ◽  
Measuring System ◽  
Modulation Scheme ◽  
In Situ Observation ◽  
Pulse Modulation ◽  
Loop Ring ◽  
Ice Pressure ◽  
Fiber Loop

Hydraulic engineering built in the cold region, such as reservoirs and hydropower stations, is often threatened by static ice pressure from nature. Therefore, it is of vital significance to research the pressure variation in the growth and melting processes of the ice layer for the design and protection of hydraulic structures in cold regions. This paper introduces an optical fiber sensor system based on the fiber loop ring-down spectroscopy technology and field-programmable gate array (FPGA) pulse modulation technology. An electro-optic modulation scheme that relied on FPGA to generate optical pulses with adjustable pulse width and period is proposed, which is more suitable for the in-situ observation. In addition, the temperature stability and repeatability of the system are also discussed. This system was applied to the real-time detection of static ice pressure on the sidewall and bottom of the polyvinyl chloride (PVC) pipe during the ice growth and melting processes. The results indicate that the system has favorable stability and sensitivity, and the relationship obtained between the static ice pressure and temperature could provide some references for the field application in the future.

Fiber loop ring down for static ice pressure detection

2017 ◽  
Vol 36 ◽  
pp. 312-316 ◽  
Author(s):  
Yi Yang ◽  
Lingzhen Yang ◽  
Zongwei Zhang ◽  
Jianjun Yang ◽  
Juanfen Wang ◽  
...  
Keyword(s):  
Loop Ring ◽  
Ice Pressure ◽  
Fiber Loop
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