Results 21 to 30 of about 60,127 (297)
Fiber Bragg Grating-Based Sensors and Systems [PDF]
Sensors, 2021 Today, no one doubts that fiber Bragg gratings (FBGs) have become the most used tool for measuring various physical parameters, the structural integrity of engineering systems, and the biological activity of living systems [...]
openaire +3 more sources
Sensors, 2020 This article proposes and demonstrates a robust microstructure-based fiber-to-chip coupling scheme for planar Bragg grating devices. A polymer planar Bragg grating substrate is manufactured and microstructured by means of a micromilling process, while ...
Stefan Kefer +4 more
doaj +1 more source
Multimode optical fiber strain monitoring for smart infrastructures
Ain Shams Engineering Journal, 2023 The in-service monitoring of civil infrastructures is an important task required to achieve their smart operation. This task requires the installation of sensors to continuously check and control the structures’ status in order to fulfil the demanded ...
Ahmed Hisham E. Morshed, Raghied M. Atta
doaj +1 more source
Optical Bend Sensor Based on Eccentrically Micro-Structured Multimode Polymer Optical Fibers
IEEE Photonics Journal, 2021 We report on a novel bend sensor with high flexibility and elasticity based on Bragg grating structures in polymer optical fibers to detect bending for the measurement of movement.
Lennart Leffers +4 more
doaj +1 more source
Ultrafast femtosecond-laser-induced fiber Bragg gratings in air-hole microstructured fibers for high-temperature pressure sensing [PDF]
, 2010 We present fiber Bragg grating pressure sensors in air-hole microstructured fibers for high-temperature operation above 800°C. An ultrafast laser was used to inscribe Type II grating in two-hole optical fibers.
Canning, J +5 more
core +1 more source
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.
Natalia Aleksandrovna Kosheleva +3 more
doaj +3 more sources
Optics Express, 2019 In this paper, an effective wavelength detection approach based on long short-term memory (LSTM) network is proposed for fiber Bragg grating (FBG) sensor networks.
Hao Jiang +6 more
semanticscholar +1 more source
Advances in Mechanical Engineering, 2015 A novel fiber Bragg grating direct current sensor with intrinsic temperature compensation is presented in this article. The operating principle of the sensor is based on the deflection of a cantilever beam due to the electromagnetic force between a ...
Yuan Yao +4 more
doaj +1 more source
Bragg gratings inscription in weakly-doped fibers
Results in Physics, 2019 The results of an investigation of the Bragg gratings inscription processes in weakly-doped fibers with different dopants without preliminary hydrogen-loading are presented in this work.
Oleg V. Butov
doaj +1 more source
Strain and temperature sensors using multimode optical fiber Bragg gratings and correlation signal processing [PDF]
, 2002 Multimode fiber optic Bragg grating sensors for strain and temperature measurements using correlation signal processing methods have been developed. Two multimode Bragg grating sensors were fabricated in 62/125 m graded-index silica multimode fiber ...
Jackson, PR, Jones, BE, Lim, J, Yang, QP
core +1 more source