Results 21 to 30 of about 297,701 (361)

Intraluminal Monitoring of Micro Vessels. A Surgical Feasibility Study

open access: yesFrontiers in Surgery, 2021
Objective: Monitoring of vessel perfusion is of high clinical importance in vascular anastomosis of free flaps. Current sensor systems are based on different principles and show limitations in validity and accuracy.
Leonard Walle   +3 more
doaj   +1 more source

Novel Fiber-Optic Ring Acoustic Emission Sensor

open access: yesSensors, 2018
Acoustic emission technology has been applied to many fields for many years. However, the conventional piezoelectric acoustic emission sensors cannot be used in extreme environments, such as those with heavy electromagnetic interference, high pressure ...
Peng Wei   +4 more
doaj   +1 more source

Photocatalytic synergistic biofilms enhance tetracycline degradation and conversion

open access: yesEnvironmental Science and Ecotechnology, 2023
Tetracyclines are refractory pollutants that cause persistent harm to the environment and human health. Therefore, it is urgently necessary to develop methods to promote the efficient degradation and conversion of tetracyclines in wastewater. This report
Chuanbao Xiao   +9 more
doaj  

Research on the estimation method of the point-of-interest (POI) displacement for ultra-precision flexible motion system based on functional optical fiber sensor

open access: yesMechanics & Industry, 2021
This paper proposes a POI displacement estimation method based on the functional optical fiber sensor and the phase modulation principle to improve the POI displacement estimation accuracy. First, the relation between the object deformation and the optic
Li Yujie, Zhang Ming, Zhu Yu
doaj   +1 more source

High Sensitivity Hot-wire based Wind Velocity Sensor using Co-doped Fiber and Fiber Bragg Grating for use in mining applications [PDF]

open access: yes, 2018
In this paper, a mathematical model of the temperature distribution in a fiber-optic version of the familiar 'hot-wire' wind velocity sensor has been established and a practical sensor device realized and investigated for use in coal mining applications.
Dong, G.   +8 more
core   +1 more source

Guided Wave and Damage Detection in Composite Laminates Using Different Fiber Optic Sensors

open access: yesSensors, 2009
Guided wave detection using different fiber optic sensors and their applications in damage detection for composite laminates were systematically investigated and compared in this paper.
Fucai Li   +3 more
doaj   +1 more source

Simulation of Adhesive Bonding of a Fiber-Optic Rayleigh Sensor with Composite Material as Part of the Design of a Monitoring System [PDF]

open access: yesE3S Web of Conferences, 2023
Using fiber optic sensors in the aviation industry is a relevant and promising technology that can significantly improve the safety and efficiency of air travel.
Shramko Konstantin   +3 more
doaj   +1 more source

Optical Lossy-mode-resonance Relative Humidity Sensor on a Fiber Tip [PDF]

open access: yesarXiv, 2023
Real-time measurement of relative humidity (RH) is important to many physical, chemical, and biological processes. However, in processes that involve harsh conditions such as high temperatures, strong electromagnetic interferences, and complex spatial constraints, conventional electrical sensors often fall short due to their intrinsic limitations. Here,
arxiv  

Improving the Sensitivity of Fiber Surface Plasmon Resonance Sensor by Filling Liquid in a Hollow Core Photonic Crystal Fiber [PDF]

open access: yesPlasmonics, February 2014, 9(1):167-173, 2018
Inspired by the classic theory, we suggest that the performance of a D-shaped fiber optical surface plasmon resonance (SPR) sensor can be improved by manipulating the fiber core mode. To demonstrate this, we propose a novel fiber SPR sensor based on a hollow core photonic crystal fiber with liquid mixture filled in the core.
arxiv   +1 more source

Optical fiber sensor review [PDF]

open access: yes, 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   +3 more
core  

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