Results 11 to 20 of about 58,600 (289)

The Proper Use of Fibre-Optic Sensors to Monitor the Condition of the Steam Boiler Hanger Rods [PDF]

open access: yesSensors, 2023
Fibre optic sensors with integrated Bragg gratings are widely used in the diagnostics of machinery and equipment. They achieved their popularity thanks to their relatively simple operating principles.
Magdalena Palacz   +4 more
doaj   +2 more sources

Temperature and Humidity Sensitivity of Polymer Optical Fibre Sensors Tuned by Pre-Strain [PDF]

open access: yesSensors, 2022
Polymer optical fibre Bragg grating (POFBG) sensors are of high interest due to their enhanced fracture toughness, flexibility in bending, and sensitivity in stress and pressure monitoring applications compared to silica-based sensors.
Andreas Pospori   +2 more
doaj   +2 more sources

Fibre Bragg Gratings for the Monitoring of Wooden Structures. [PDF]

open access: yesMaterials (Basel), 2017
The aim of this work was to develop and validate an experimental methodology suitable for analysing on-site the behaviour of fibre-reinforced wooden structures.
Marsili R, Rossi G, Speranzini E.
europepmc   +2 more sources

Functional mimicry of Ruffini receptors with fibre Bragg gratings and deep neural networks enables a bio-inspired large-area tactile-sensitive skin [PDF]

open access: yesNature Machine Intelligence, 2022
Collaborative robots are expected to physically interact with humans in daily living and the workplace, including industrial and healthcare settings.
Luca Massari   +11 more
semanticscholar   +1 more source

Optical solitons in fibre Bragg gratings with third- and fourth-order dispersive reflectivities

open access: yesUkrainian Journal of Physical Optics, 2021
. For the first time in the field of nonlinear optics, we address cubic–quartic solitons appearing in the fibre Bragg gratings with dispersive reflectivity for four different cases of nonlinear refractive-index structures.
Y. Yıldırım   +5 more
semanticscholar   +1 more source

Rotation and twist measurement using tilted fibre bragg gratings

open access: yesMetrology and Measurement Systems, 2023
The paper presents a method of measuring the angle of rotation and twist using a tilted fibre Bragg grating (TFBG) periodic structure with a tilt angle of 6◦, written into a single-mode optical fibre.
P. Kisała   +4 more
semanticscholar   +1 more source

Inscription methods for co‐located fibre Bragg gratings using small spot direct UV writing

open access: yesElectronics Letters, 2021
Two methods to inscribe co‐located fibre Bragg gratings using the small spot direct UV writing technique are described and compared, namely: superimposed gratings, which are written one over the other at the same spatial location, and superstructured ...
S. L. Jantzen   +6 more
doaj   +1 more source

Laser nano-filament explosion for enabling open-grating sensing in optical fibre

open access: yesNature Communications, 2021
Engineered stop bands to sense an ambient environment can enable many applications. Here, the authors demonstrate well-controlled processes to open high-aspect ratio nanoholes through optical fibre for Bragg gratings in the telecomm spectrum and to ...
Keivan Mahmoud Aghdami   +3 more
doaj   +1 more source

Design of a new method for detection of occupancy in the smart home using an FBG sensor [PDF]

open access: yes, 2020
This article introduces a new way of using a fibre Bragg grating (FBG) sensor for detecting the presence and number of occupants in the monitored space in a smart home (SH).
Fajkus, Marcel   +3 more
core   +1 more source

Analysis of the inadequacy of determining the spectral characteristics of optical fibre periodic structures by way of numerical modelling

open access: yesMetrology and Measurement Systems, 2020
As part of the work, the error level of simulations of uniform optical-fibre Bragg gratings was determined using the transitionmatrixmethod. The errorswere established by comparing the transmission characteristics of the structures obtained by simulation
Stępniak Piotr, Kisała Piotr
doaj   +1 more source

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