Results 41 to 50 of about 307,556 (373)

Multiple-Octave-Spanning Vibration Sensing Based on Simultaneous Vector Demodulation of 499 Fizeau Interference Signals from Identical Ultra-Weak Fiber Bragg Gratings Over 2.5 km

Sensors, 2018
Multi-point vibration sensing at the low frequency range of 0.5–100 Hz is of vital importance for applications such as seismic monitoring and underwater acoustic imaging.
Yi Li, Li Qian, Ciming Zhou, Dian Fan, Qiannan Xu, Yandong Pang, Xi Chen, Jianguan Tang   +7 more
doaj   +1 more source

Distributed fiber optic interferometric geophone system based on draw tower gratings

Photonic Sensors, 2017
A distributed fiber optic interferometric geophone array based on draw tower grating (DTG) array is proposed. The DTG geophone array is made by the DTG array fabricated based on a near-contact exposure through a phase mask during the fiber drawing ...
Ruquan Xu, Huiyong Guo, Lei Liang
doaj   +1 more source

Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry [PDF]

, 2019
The coal industry plays an important role in the economic development of China. With the increase of coal mining year by year, coal mine accidents caused by gas explosion also occur frequently, which poses a serious threat to the life safety of ...
Chang, J., Gong, W., Grattan, K. T. V., Li, Y., Liu, T., Wang, Z., Wei, Y., Zhang, T.   +7 more
core   +1 more source

Distributed Weak Fiber Bragg Grating Vibration Sensing System Based on 3 × 3 Fiber Coupler

Photonic Sensors, 2018
A novel distributed weak fiber Bragg gratings (FBGs) vibration sensing system has been designed to overcome the disadvantages of the conventional methods for optical fiber sensing networking, which are: low signal intensity in the usually adopted time ...
Wei Li, Jian Zhang
doaj   +1 more source

Optical fiber sensor review [PDF]

, 2020
Technology of fiber optic are widely used for its applications which mostly known for carrying information over long distances for the best efficiency.
Abdul Manaf, Muhammad Shukri, Abdul Rahim, Ruzairi, Durasad, Akmal Dzuhairi, Md. Yunos, Yusri   +3 more
core  

A Survey Paper of Optical Fiber Sensor [PDF]

, 2014
As the technology changes use of instruments and accuracy also increases. Besides the advantages of fiber optic sensor, t he cost is reduces and evaluation will be increase day by day.
, Parikh Meera J., Prof.Gharge Anuradha P.
core   +2 more sources

Optical Fiber Grating Hydrogen Sensors: A Review

Sensors, 2017
In terms of hydrogen sensing and detection, optical fiber hydrogen sensors have been a research issue due to their intrinsic safety and good anti-electromagnetic interference.
Jixiang Dai, Li Zhu, Gaopeng Wang, Feng Xiang, Yuhuan Qin, Min Wang, Minghong Yang   +6 more
doaj   +1 more source

Broadband in Rhode Island [PDF]

, 2021
Broadband is the 21st century fiber-optic highway in our technology and information economy. The need for high-speed fiber-optic connectivity is critical for economic development, education, business, e-learning, and ...
Ruggiero, Deborah
core   +1 more source

Sapphire Fiber Fabry-Perot Sensors With High Fringe Visibility

IEEE Photonics Journal, 2022
It is difficult for sapphire fiber Fabry-Perot (FP) sensors to generate high quality interference fringes because their highly multimode property. In this paper, we report a sapphire fiber FP strain sensing system with high fringe visibility, realized by
Jiawei Zhang, Dongsheng Zhang, Chao Pan, Minghong Yang   +3 more
doaj   +1 more source

Fabry-Perot Interferometric High-Temperature Sensing Up to 1200 °C Based on a Silica Glass Photonic Crystal Fiber

Sensors, 2018
A Fabry-Perot interferometric sensor for temperature measurement was fabricated based on a silica glass solid-core photonic crystal fiber with a central air-bore.
Haihu Yu, Ying Wang, Jian Ma, Zhou Zheng, Zhuozhao Luo, Yu Zheng   +5 more
doaj   +1 more source