Results 61 to 70 of about 3,050 (226)

Development of Optical Fiber Sensor for Water Salinity Detection

open access: yesInternational Journal of Technology, 2023
This project addresses the lack of a real-time, low-cost sensor to detect salt levels in water. The authors aim to develop an optical fiber sensor for water salinity detection.
Muhammad Safwan Mohammed Nor   +3 more
doaj   +1 more source

Use of a novel fiber optical strain sensor for monitoring the vertical deflection of an aircraft flap [PDF]

open access: yes, 2009
The present paper reports the use of a plastic optical fiber-based sensor for elongation measurements in an aircraft flap subjected to different types of flexural loading conditions.
Durana, Gaizka   +6 more
core   +2 more sources

Optical Fiber‐Based Versatile Wearable Force Myography System: Application to Human–Robot Interaction

open access: yesAdvanced Intelligent Systems, EarlyView.
A compact and flexible wearable force myography sensor based on optical fiber technology detects muscle activity through pressure‐induced light loss. The sensor offers high sensitivity for detecting subtle force and finger motion changes, along with excellent signal stability under dynamic and sweating conditions.
Chongyoung Chung   +3 more
wiley   +1 more source

Variable numerical-aperture temporal-coherence measurement of resonant-cavity LEDs [PDF]

open access: yes, 2003
The first interferometric measurements of temporal-coherence length variation with numerical aperture (NA) are described for 650 nm, resonant-cavity light-emitting diodes (LEDs) agreeing with spectrally derived results.
Coutinho, RC   +6 more
core   +1 more source

A Textile‐Based Optical Force Myography (oFMG) Human‐Machine Interface for Gesture Recognition

open access: yesAdvanced Sensor Research, Volume 5, Issue 1, January 2026.
This study presents a textile‐based optical force myography (oFMG) sensor for human‐machine interface applications. The textile oFMG sensor is designed for a thin, compact, and comfortable profile based on textile structures and soft optical waveguides.
Trung Thien Hoang   +5 more
wiley   +1 more source

Ethanol Gas Sensitivity Sensor Based on Roughened POF Taper of Modified Polypyrrole Films

open access: yesSensors, 2020
The three polypyrrole (PPy) films with different mixture ratios, namely PPy1, PPy2, and PPy3, were synthesized by chemical oxidation with pyrrole and ferric chloride (FeCl3).
Wenyi Liu, Yanjun Hu, Yulong Hou
doaj   +1 more source

Efficient Multiplexer/Demultiplexer for Visible WDM Transmission over SI-POF Technology [PDF]

open access: yes, 2015
A five channel step index plastic optical fiber proposal for a multiplexer/demultiplexer having insertion losses (IL) of 2.9-4 dB, pass bandwidths at -3 dB > 30 nm, crosstalk attenuation >30 dB and size of similar to ~65 mm x 55 mm, is demonstrated.
Pinzón Castillo, Plinio Jesús   +2 more
core   +2 more sources

Instrumented Office Chair With Low-Cost Plastic Optical Fiber Sensors for Posture Control and Work Conditions Optimization

open access: yesIEEE Access, 2022
People spend more and more time sitting and this habit has been shown to cause spine pathologies. Thus, the scientific community and the industry have become interested in instrumented chairs development to detect incorrect user postures. In this work we
Catia Tavares   +8 more
doaj   +1 more source

In‐House Production of POFs Using Electrospinning, Melt‐Electrospinning and Melt‐Spinning for Cell‐Level Resolution Radiation Detectors

open access: yesJournal of Applied Polymer Science, Volume 142, Issue 48, December 20, 2025.
Optical transmission along a melt‐spun polystyrene microfiber with a diemeter of 80 um. ABSTRACT Since their discovery in 1965, scintillating plastic optical fibers have been used as radiation detectors in nuclear and high‐energy physics research.
Cristiana M. C. Rodrigues   +6 more
wiley   +1 more source

GaN-Based Cyan Light-Emitting Diode with up to 1-GHz Bandwidth for High-Speed Transmission Over SI-POF

open access: yesIEEE Photonics Journal, 2017
We demonstrate the performance of a novel cyan light-emitting diode (LED) on a patterned sapphire substrate for use as a light source for plastic optical fiber (POF) communications with the central wavelength at 500 nm.
Juri Vinogradov   +7 more
doaj   +1 more source

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