Results 21 to 30 of about 307,556 (373)

CDs-Peroxyfluor Conjugation for Ratiometric Fluorescence Detection of Glucose and Shortening Its Detection Time from Reaction Dynamic Perspective

open access: yesBiosensors, 2023
A ratiometric fluorescence probe based on the conjugation of peroxyfluor-NHS (PF) and carbon dots (CDs) was designed for selective and rapid detection of glucose.
Yangjie Li   +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

Opto-Mechatronics System for Train-Track Micro Deformation Sensing

open access: yesSensors, 2021
In this paper, we proposed and experimentally demonstrated an opto-mechatronics system to detect the micro-deformation of tracks caused by running trains.
Weibing Gan   +5 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

High-Speed Mach-Zehnder-OTDR Distributed Optical Fiber Vibration Sensor Using Medium-Coherence Laser

open access: yesPhotonic Sensors, 2018
This article presents a high-speed distributed vibration sensing based on Mach-Zehnder-OTDR (optical time-domain reflectometry). Ultra-weak fiber Bragg gratings (UWFBG), whose backward light intensity is 2-4 orders of magnitude higher than that of ...
Yuheng Tong   +4 more
doaj   +1 more source

A High-Sensitivity Dual-Axis Accelerometer with Two FP Cavities Assembled on Single Optical Fiber

open access: yesSensors, 2022
In this paper, a dual-axis Fabry–Pérot (FP) accelerometer assembled on single optical fiber is proposed. The sensor is equipped with a special beam-splitting prism to split the light into two perpendicular directions (the X- and Y-axes); the prism ...
Bolun Zheng   +5 more
doaj   +1 more source

Drawing Tower In-Line Fabrication and the Spectrum Analysis of Sampled Fiber Grating

open access: yesPhotonic Sensors, 2019
Sampled fiber grating is a special superstructure fiber Bragg grating with a wide range of applications in many fields. In this work, based on drawing tower in-line fabrication system, a new preparation method of the sampled fiber grating is proposed and
Yu Zheng   +5 more
doaj   +1 more source

Design and Measurement of a Dual FBG High-Precision Shape Sensor for Wing Shape Reconstruction

open access: yesSensors, 2021
FBG shape sensors based on soft substrates are currently one of the research focuses of wing shape reconstruction, where soft substrates and torque are two important factors affecting the performance of shape sensors, but the related analysis is not ...
Huifeng Wu   +5 more
doaj   +1 more source

Optical Fiber Technology 2012

open access: yesInternational Journal of Electronics and Telecommunications, 2013
Abstract The Conference on Optical Fibers and Their Applications, Nałȩczów 2012, in its 14th edition, which has been organized since more than 35 years, has summarized the achievements of the local optical fiber technology community, for the last year and a half.
Romaniuk, Ryszard S., Wójcik, Waldemar
openaire   +4 more sources

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

Home - About - Disclaimer - Privacy