Results 1 to 10 of about 849,567 (246)
Fracture and Structural Integrity, 2019 One of the issues in the strain measurement with the help of fiber-optic sensors based on Bragg gratings is the calculation of the strain based on the information from the sensor and its correspondence to the material strain.
Valerii P. Matveenko +3 more
doaj +3 more sources
Research of Pre-peak Deformation Detection of Rock with Fiber Bragg Grating Sensing
Gong-kuang zidonghua, 2011 In order to obtain more precise test data of deformation and damage of rock, the paper proposed a method which uses fiber bragg grating sensing technology to detect deformation and damage process of rock.
WEI Shi-ming, CHAI Jing, YIN Shi-xian
doaj
MATEC Web of Conferences, 2017 In this paper, the development of loop mirror multi-wavelength Brillouin fiber laser utilizing semiconductor optical amplifier and fiber Bragg grating is successfully demonstrated. A multi-wavelength BFL structure employs a single mode fiber that acts as
Idris N. A. +5 more
doaj +1 more source
A monitoring and warning system for expressway slopes using FBG sensing technology
International Journal of Distributed Sensor Networks, 2018 This article presents a fiber Bragg grating–based monitoring and warning system for expressway slopes. A detailed architecture of the sensing system based on fiber Bragg grating sensors for safety analysis and pre-warning of slopes is described and ...
Yongqiang Hu +3 more
doaj +1 more source
PROTECTIVE COATINGS OF FIBER BRAGG GRATING FOR MINIMIZING OF MECHANICAL IMPACT ON ITS WAVELENGTH CHARACTERISTICS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2015 The paper deals with the scheme for the study of the Bragg wavelength shift dependence on the applied tensile force. Samples of fiber Bragg gratings with different coatings have been studied: the restored acrylate coating, the heatshrinkable fusion ...
A. S. Munko +3 more
doaj +1 more source
Applied Sciences, 2019 We propose and experimentally demonstrate a hybrid grating, in which an excessively tilted fiber grating (Ex-TFG) and a fiber Bragg grating (FBG) were co-inscribed in a reduced-diameter fiber (RDF).
Biqiang Jiang +5 more
doaj +1 more source
Microfiber Bragg grating for temperature and strain sensing applications
Photonic Sensors, 2016 Fiber Bragg grating is inscribed on microfiber with femtosecond laser pulses irradiation. The microfiber is fabricated by stretching a section of single mode fiber over a flame.
Jie Tian +3 more
doaj +1 more source
Fiber Bragg Grating in Biomedical Application
مجلة النهرين للعلوم الهندسية, 2017 The aim of this work is to use Fiber Bragg Grating (FBG) to detect the breast cancer at its earliest stages based on the Photoacoustic (PA) hybrid technique.
Arwa A. Moosa
doaj
Sensors, 2015 Fiber Bragg grating sensors are placed in a fiber-optic Sagnac loop to combine the grating temperature sensors and the fiber-optic mandrel acoustic emission sensors in single optical circuit.
Hyunjin Kim, Umesh Sampath, Minho Song
doaj +1 more source
IEEE Photonics Journal, 2018 We demonstrate a phase-shifted fiber Bragg grating with a taper induced by femtosecond laser micromachining. In this configuration, a fiber taper fabricated by an arc discharge in a fiber splicer was sandwiched between two fiber Bragg grating sections ...
Feng Zhu +9 more
doaj +1 more source