Results 21 to 30 of about 5,305 (281)

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

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

UV Sensor Based on Fiber Bragg Grating Covered with Graphene Oxide Embedded in Composite Materials

open access: yesSensors, 2020
Polymer–matrix composites degrade under the influence of UV radiation in the range of the 290–400 nm band. The degradation of polymer–matrix composites exposed to UV radiation is characterized by extensive aging of the epoxy matrix, resulting in ...
Piotr Lesiak   +12 more
doaj   +1 more source

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   +1 more source

Modified POF Sensor for Gaseous Hydrogen Fluoride Monitoring in the Presence of Ionizing Radiations [PDF]

open access: yes, 2012
This paper describes the development of a sensor designed to detect low concentrations of hydrogen fluoride (HF) in gas mixtures. The sensor employs a plastic optical fiber (POF) covered with a thin layer of glass- like material. HF attacks the glass and
Piccolo D.   +17 more
core   +1 more source

Temperature-compensated fiber-optic gas flow speed sensor based on the 'Hot-wire' principle [PDF]

open access: yes, 2021
Compared with the use of other types of sensors, there are significant advantages in making measurements of low speed gas flows by using a fiber-optic ‘hot-wire’ sensor.
Ning, Y.   +10 more
core   +1 more source

Few-sensory microwave photonic address measuring system for esophageal manometry

open access: yesФизика волновых процессов и радиотехнические системы, 2019
In the modern development of high-resolution manometry, the catheter and its elements are used at various levels of examination and treatment of the patient, both in operative and long-term follow-up systems. Therefore, the approach to the catheter as an
A.F. Agliullin   +9 more
doaj   +1 more source

Fabrication and Characterization of a Fiber-optic Radiation Sensor for Detection of Tritium [PDF]

open access: yesKorean Journal of Optics and Photonics, 2009
: Ce, and CsI : Tl to select the most effective sensor tip. In addition, we have measured the scintillating lights using a photomultiplier tube as a function of distance between sensor tips to the source with the different activities of hydride tritium. The final results are compared with those which are obtained using a surface activity monitor.
Kyoung-Won Jang   +7 more
openaire   +1 more source

Use of scanned detection in optical position encoders [PDF]

open access: yes, 2004
Published ...
Kushner, PJ, Yeatman, EM, Roberts, DA
core   +1 more source

Home - About - Disclaimer - Privacy