Results 101 to 110 of about 15,020 (231)
All-optical differential current detection technique for unit protection applications [PDF]
, 2013 In this paper we demonstrate a novel, all-optical differential current protection scheme. By monitoring the optical power reflected from two matched hybrid fiber Bragg grating current sensors and using a simple optoelectronic threshold detector, an ...
Fusiek, Grzegorz +3 more
core +1 more source
Advanced NanoBiomed Research, Volume 6, Issue 2, February 2026.A novel self‐adhesive hydrogel matrix is engineered to embed a fiber Bragg grating sensor for real‐time monitoring of physiological strain signals. The developed system conforms to the skin without external supports and, thanks to the fiber–matrix mechanical coupling, captures both subtle and large‐scale deformations.
Ilaria Condò +4 more
wiley +1 more source
Study on Dynamic Response Measurement of the Submarine Pipeline by Full-Term FBG Sensors
The Scientific World Journal, 2014 The field of structural health monitoring is concerned with accurately and reliably assessing the integrity of a given structure to reduce ownership costs, increase operational lifetime, and improve safety.
Jinghai Zhou, Li Sun, Hongnan Li
doaj +1 more source
Mechanical strength of silica fiber splices after exposure to extreme temperatures [PDF]
, 2012 By using a combination of type-I and regenerated gratings, the mechanical strength of optical fiber splices after exposure to temperatures over 1300 C was characterized. Splice strength was found to decrease with temperature with a secondorder polynomial
Canning, John +4 more
core +1 more source
Phase-Shifted Fiber Bragg Grating by Selective Pitch Slicing
SensorsThis paper presents a new type of phase-shifted Fiber Bragg Grating (FBG): the sliced-FBG (SFBG). The fabrication process involves cutting a standard FBG inside its grating region. As a result, the last grating pitch is shorter than the others.
Paulo Robalinho +6 more
doaj +1 more source
Research on the surface subsidence monitoring technology based on fiber Bragg grating sensing
Photonic Sensors, 2016 In order to monitor the process of surface subsidence caused by mining in real time, we reported two types of fiber Bragg grating (FBG) based sensors.
Jinyu Wang +8 more
doaj +1 more source
The Fundamental of Fiber Bragg Grating (FBG) Sensor
International Journal for Research in Applied Science and Engineering TechnologyAn optical sensor known as an FBG is produced by laterally exposing a single mode fiber core to a strong UV laser light pattern on a regular basis. The exposure causes a sustained increase in the refractive index (ncore) of the fiber's core, resulting in fixed index modulation called grating (λ).
openaire +1 more source
Air Gap Fiber Bragg Grating for Simultaneous Strain and Temperature Measurement
MicromachinesWe propose an air gap fiber Bragg grating (g-FBG) sensor that can measure strain and temperature simultaneously. The sensor is made by aligning two fiber Bragg gratings (FBGs), and an air gap exists between these two sub-gratings.
Fuling Yang +6 more
doaj +1 more source
Analysis and Optimization of Thermodiffusion of an FBG Sensor in the Gas Nitriding Process
Micromachines, 2016 In this paper, we report the numerical calculations for a thermo-optical model and the temperature sensitivity of a fiber Bragg grating (FBG) sensor.
Tso-Sheng Hsieh +2 more
doaj +1 more source
Brillouin lasing in single-mode tapered optical fiber with inscribed fiber Bragg grating array
Results in Physics, 2018 A tapered optical fiber has been manufactured with an array of fiber Bragg gratings (FBG) inscribed during the drawing process. The total fiber peak reflectivity is 5% and the reflection bandwidth is ∼3.5 nm. A coherent frequency domain reflectometry has
S.M. Popov +12 more
doaj +1 more source