Results 11 to 20 of about 3,087,643 (281)

Research on measurement technology of optical fiber angle sensor based on MEA-BP [PDF]

open access: yesScientific Reports
High-voltage disconnectors operate under strong electromagnetic radiation for long periods, making it prone to incomplete opening and closing. Current electronic sensors used to detect their status are susceptible to electromagnetic interference, leading
Wang Lisha   +6 more
doaj   +2 more sources

Fiber-Optic Sensor for Identifying Liquids and Determining Solutions Concentration [PDF]

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники
Fiber-optic sensors for identifying liquids and determining the concentration of solutions have been studied with the possibility of using various types of single-mode optical fibers produced by industry and widely used in optical cables and ...
A. O. Zenevich   +3 more
doaj   +2 more sources

Numerical Analysis of Radiation Effects on Fiber Optic Sensors [PDF]

open access: yesSensors, 2021
Optical fiber sensors (OFS) are a potential candidate for monitoring physical parameters in nuclear environments. However, under an irradiation field the optical response of the OFS is modified via three primary mechanisms: (i) radiation-induced attenuation (RIA), (ii) radiation-induced emission (RIE), and (iii) radiation-induced compaction (RIC).
Sohel Rana   +3 more
openaire   +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

Comparative analysis of the DFB fiber laser and fiber-optic interferometric strain sensors [PDF]

open access: yes, 2007
The DFB fiber laser strain sensor is shown to provide an improvement in the minimum detectable length change by a factor of 275 at 2 kHz for an applied strain when compared with an interferometric sensor interrogated by at equivalent DFB laser.
Kirkendall, C. K.   +2 more
core   +4 more sources

Online optical refractive index measurement in research reactor core [PDF]

open access: yesEPJ Web of Conferences, 2021
There is a growing interest in fiber optic measurements for applications in radiation environments. Optical fiber sensors and diagnostics can monitor many parameters of interest inside a research reactor core.
Fourneau Gary   +8 more
doaj   +1 more source

EXPERIMENTAL STUDY OF OPTICAL POWER EFFECT ON THE STRUCTURE OF FIBER-OPTICAL DIFFUSER OBTAINED BY FIBER CORE MELTING [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents experimental findings of a fiber-optic diffuser structure formed by optical fiber melting. Method. An optical scheme of ytterbium fiber laser is demonstrated consisting of such main components as: a laser pump ...
Ianina D. Tokareva   +5 more
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

Organic phosphor based fiber-optic sensor for detection of UV radiation [PDF]

open access: yesJournal of Physics: Conference Series, 2021
Abstract The paper presents a simple and low-cost fiber-optic sensor for detection of UV radiation. A sensor construction consists of a silica capillary with a photoactive composition based on an organic phosphor, organic solvent and epoxyacrylate inside and a multimode optical fiber in contact with each other.
A S Matrosova   +7 more
openaire   +1 more source

New multiplexing scheme for monitoring fiber optic Bragg grating sensors in the coherence domain

open access: yes, 1997
A new multiplexing scheme for monitoring fiber optic Bragg gratings in the coherence domain has been developed. Grating pairs with different grating distances are distributed along a fiber line, and interference between their reflections is monitored ...
Usbeck, K.   +11 more
core   +3 more sources

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