Results 21 to 30 of about 36,174 (312)

Research on multi-component gas optical detection system based on conjugated interferometer

open access: yesPhotonic Sensors, 2017
An optical multi-component gas detection system based on the conjugated interferometer (CI) is proposed and experimentally demonstrated. It can realize the concentration detection of mixture gas in the environment.
Xin Gui   +4 more
doaj   +1 more source

An Enhanced Distributed Acoustic Sensor With Large Temperature Tolerance Based on Ultra-Weak Fiber Bragg Grating Array

open access: yesIEEE Photonics Journal, 2020
An enhanced distributed optical fiber sensor based on broadband ultra-weak fiber Bragg grating array (UWFBG) for dynamic strain measurement with large temperature tolerance range was proposed and experimentally demonstrated.
Chengli Li   +5 more
doaj   +1 more source

Optical Fiber Technology [PDF]

open access: yesOptik & Photonik, 2008
AbstractOptical fibers have a very broad range of applications, where they serve many purposes, such as simply transporting light from a source to some other device, transmitting optically encoded data, sensing temperature or strain in some environment, or generating and amplifying laser light.
openaire   +2 more sources

Fiber-Optic Sensing Technology [PDF]

open access: yes, 1996
This article offers a basic review of fiber-optic sensing technology, or more specifically, fiber-optic sensing technology as applied to the qualitative or quantitative identification of a chemical sample, and how it works,
Milnes, M., Baylor, L.C., Bave, S.
openaire   +3 more sources

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

open access: yesPhotonic 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   +3 more
doaj   +1 more source

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

open access: yesSensors, 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   +4 more
doaj   +1 more source

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

open access: yesNanomaterials, 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   +8 more
doaj   +1 more source

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

open access: yesPhotonic 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

Sapphire Fiber Fabry-Perot Sensors With High Fringe Visibility

open access: yesIEEE 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   +3 more
doaj   +1 more source

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

open access: yesSensors, 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   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy