Results 41 to 50 of about 187,915 (349)

Reviews on Corrugated Diaphragms in Miniature Fiber-Optic Pressure Sensors

open access: yesApplied Sciences, 2019
Corrugated diaphragms (CDs) have been widely used in many fields because of their higher pressure sensitivity and wider linear range compared to flat diaphragms (FDs) in the same circumstances.
Honglin Li   +5 more
doaj   +1 more source

Multi-channel fiber-optic temperature sensor system using an optical time-domain reflectometer

open access: yesResults in Physics, 2018
In this study, we developed a multi-channel fiber-optic temperature sensor system (FTSS) using an optical time-domain reflectometer (OTDR). The developed FTSS consists of fiber-optic temperature-sensing probes, a fiber-optic coupler, a transmitting ...
H.J. Kim   +6 more
doaj   +1 more source

Review of Seawater Fiber Optic Salinity Sensors Based on the Refractive Index Detection Principle

open access: yesItalian National Conference on Sensors, 2023
This paper presents a systematic review of the research available on salinity optic fiber sensors (OFSs) for seawater based on the refractive index (RI) measurement principle for the actual measurement demand of seawater salinity in marine environmental ...
Gaochao Li   +4 more
semanticscholar   +1 more source

Hollow-Core Fiber-Tip Interferometric High-Temperature Sensor Operating at 1100 °C with High Linearity

open access: yesMicromachines, 2021
Over decades, fiber-optic temperature sensors based on conventional single-mode fibers (SMF) have been demonstrated with either high linearity and stability in a limited temperature region or poor linearity and thermal hysteresis in a high-temperature ...
Zhe Zhang   +7 more
doaj   +1 more source

Overview of Fiber Optic Sensor Technologies for Strain/Temperature Sensing Applications in Composite Materials

open access: yesItalian National Conference on Sensors, 2016
This paper provides an overview of the different types of fiber optic sensors (FOS) that can be used with composite materials and also their compatibility with and suitability for embedding inside a composite material.
M. Ramakrishnan   +3 more
semanticscholar   +1 more source

Ultrasensitive strain sensor based on Vernier- effect improved parallel structured fiber-optic Fabry-Perot interferometer.

open access: yesOptics Express, 2019
A novel parallel structured fiber-optic Fabry-Perot interferometer (FPI) based on Vernier-effect is theoretically proposed and experimentally demonstrated for ultrasensitive strain measurement.
Tong Nan   +7 more
semanticscholar   +1 more source

Smart Adhesive Joint with High-Definition Fiber-Optic Sensing for Automotive Applications

open access: yesSensors, 2020
Structural health monitoring of fiber-reinforced composite-based joints for automotive applications during their manufacturing and on-demand assessment for its durability in working environments is critically needed.
Stephen Young   +8 more
doaj   +1 more source

Theoretical Analysis of the Optical Propagation Characteristics in a Fiber-Optic Surface Plasmon Resonance Sensor

open access: yesSensors, 2013
Surface plasmon resonance (SPR) sensor is widely used for its high precision and real-time analysis. Fiber-optic SPR sensor is easy for miniaturization, so it is commonly used in the development of portable detection equipment.
Xiaolin Zheng   +5 more
doaj   +1 more source

Soil total suction sensing using fiber-optic technology

open access: yesGeoderma, 2023
Measurement of the soil water suction is important for investigating geotechnical problems and mitigating associated risks; however, conventional high-range suction measurement techniques have some limitations for accurate, long-term, and quasi ...
Jun-Yi Guo   +7 more
doaj   +1 more source

A Phonocardiographic-Based Fiber-Optic Sensor and Adaptive Filtering System for Noninvasive Continuous Fetal Heart Rate Monitoring

open access: yesItalian National Conference on Sensors, 2017
This paper focuses on the design, realization, and verification of a novel phonocardiographic- based fiber-optic sensor and adaptive signal processing system for noninvasive continuous fetal heart rate (fHR) monitoring.
R. Martínek   +8 more
semanticscholar   +1 more source

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