Results 31 to 40 of about 329,923 (395)

A High-Sensitivity and Broad-Range SPR Glucose Sensor Based on Improved Glucose Sensitive Membranes

Photonic Sensors, 2019
An improved glucose sensitive membrane (GSM) is prepared by immobilizing glucose oxidase (GOD) onto a mixture of silica mesocellular foams (SiMCFs) and SiO2 nanoparticles (SiNPs) and then trapping it in a polyvinyl alcohol (PVA) gel.
Yinquan Yuan, Na Yuan, Dejing Gong, Minghong Yang   +3 more
doaj   +1 more source

Fiber Optical Hydrogen Sensor Based on WO₃-Pd₂Pt-Pt Nanocomposite Films

Nanomaterials, 2021
In this paper, WO3-Pd2Pt-Pt nanocomposite films were deposited on a single mode fiber as the hydrogen sensing material, which changes its reflectivity under different hydrogen concentration.
Jixiang Dai, Yi Li, Hongbo Ruan, Zhuang Ye, Nianyao Chai, Xuewen Wang, Shuchang Qiu, Wei Bai, Minghong Yang   +8 more
doaj   +1 more source

Optical fiber sensors for coal mine shaft integrity and equipment condition monitoring [PDF]

, 2019
Shaft is an important structure of mine. Deep mining increases mine pressure, induces shaft deformation and affects mine normal lifting. How to improve the inspection efficiency, reduce the maintenance cost and ensure the normal operation of the shaft is
Fu, J., Grattan, K. T. V., Hu, B., Li, Y., Liu, T., Liu, X., Ma, G., Wang, G., Zhang, H., Zhu, F.   +9 more
core   +1 more source

How the Material Characteristics of Optical Fibers and Soil Influence the Measurement Results of Distributed Acoustic Sensing

Sensors, 2023
Fiber optic distributed acoustic sensing (DAS) technology is widely used in security surveillance and geophysical survey applications. The response of the DAS system to external vibrations varies with different types of fiber optic cable connections. The
Ke Jiang, Lei Liang, Xiaoling Tong, Feiyu Zeng, Xiaolong Hu   +4 more
doaj   +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

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  

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

A Two Fiber Bragg Gratings Sensing System to Monitor the Torque of Rotating Shaft

Sensors, 2016
By fixing two FBGs on the surface of a rotating shaft along the direction of ±45° and using dynamic wavelength demodulation technology, we propose an optical fiber sensing system to monitor the driving torque and torsion angle of the rotating shaft.
Yongjiao Wang, Lei Liang, Yinquan Yuan, Gang Xu, Fang Liu   +4 more
doaj   +1 more source

Research progress on coal mine laser methane sensor [PDF]

, 2019
This paper discusses the research progress of low-power technology of laser methane sensors for coal mine. On the basis of environment of coal mines, such as ultra-long-distance transmission and high stability, a series of studies have been carried out ...
Grattan, K. T. V., Jiang, D., Jin, G., Li, Y., Liu, T., Liu, Z., Meng, H., Shi, Z., Sun, T., Wei, Y., Zhang, H.   +10 more
core   +1 more source

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