Results 11 to 20 of about 1,612,939 (283)

Interferometric Fiber Optic Sensors [PDF]

open access: yesSensors, 2012
Fiber optic interferometers to sense various physical parameters including temperature, strain, pressure, and refractive index have been widely investigated. They can be categorized into four types: Fabry-Perot, Mach-Zehnder, Michelson, and Sagnac.
Hae Young Choi   +6 more
doaj   +4 more sources

Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]

open access: yes, 2006
Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Flockhart, G M H   +2 more
core   +4 more sources

A Combined Positioning Method Used for Identification of Concrete Cracks

open access: yesMicromachines, 2021
Fully distributed fiber optic sensors are characteristically used for the measurement of long distances and continuous distribution of space. However, due to the different fiber type, fiber length, ambient temperature and strain, fully distributed fiber ...
Jianzhi Li, Bohao Shen, Junjie Wang
doaj   +1 more source

Efficient large-scale multiplexing of fiber Bragg grating and fiber Fabry-Perot sensors for structural health monitoring applications [PDF]

open access: yes, 2006
Fiber Bragg gratings have been demonstrated as a versatile sensor for structural health monitoring. We present an efficient and cost effective multiplexing method for fiber Bragg grating and fiber Fabry-Perot sensors based on a broadband mode-locked ...
Kirkendall, C. K.   +2 more
core   +4 more sources

Optical Fiber Sensors for High-Temperature Monitoring: A Review

open access: yesSensors, 2022
High-temperature measurements above 1000 °C are critical in harsh environments such as aerospace, metallurgy, fossil fuel, and power production. Fiber-optic high-temperature sensors are gradually replacing traditional electronic sensors due to their ...
Shaonian Ma   +8 more
doaj   +1 more source

Efficient fiber Bragg grating and fiber Fabry-Pe'rot sensor multiplexing scheme using a broadband pulsed mode-locked laser [PDF]

open access: yes, 2005
A pulsed broadband mode-locked laser (MLL) combined with interferometric interrogation is shown to yield an efficient means of multiplexing a large number of fiber Bragg grating (FBG) or fiber Fabry-Perot (FFP) strain sensors with high performance ...
Flockhart, G M H   +2 more
core   +4 more sources

Development of sensitive elements based on photochromic bacteriorhodopsin for fibre optic sensors [PDF]

open access: yes, 2007
This work focuses on the development of sensitive elements incorporating bacteriorhodopsin thin films for fibre optic sensors. The sensing principle is based on monitoring optical properties of the bacteriorhodopsin thin films during changes of ...
Korposh, Serhiy O.
core   +7 more sources

Recent Advancements of LSPR Fiber-Optic Biosensing: Combination Methods, Structure, and Prospects

open access: yesBiosensors, 2023
Fiber-optic biosensors based on localized surface plasmon resonance (LSPR) have the advantages of great biocompatibility, label-free, strong stability, and real-time monitoring of various analytes.
Hongxin Zhang   +5 more
doaj   +1 more source

Optical Fiber Networks for Remote Fiber Optic Sensors [PDF]

open access: yesSensors, 2012
This paper presents an overview of optical fiber sensor networks for remote sensing. Firstly, the state of the art of remote fiber sensor systems has been considered. We have summarized the great evolution of these systems in recent years; this progress confirms that fiber-optic remote sensing is a promising technology with a wide field of practical ...
Montserrat Fernandez-Vallejo   +1 more
openaire   +5 more sources

Advances in Tapered Optical Fiber Sensor Structures: From Conventional to Novel and Emerging

open access: yesBiosensors, 2023
Optical fiber sensors based on tapered optical fiber (TOF) structure have attracted a considerable amount of attention from researchers due to the advantages of simple fabrication, high stability, and diverse structures, and have great potential for ...
Wen Zhang   +6 more
doaj   +1 more source

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