Results 1 to 10 of about 60,127 (297)

Braided Fabrication of a Fiber Bragg Grating Sensor [PDF]

open access: yesSensors, 2020
Our objective was to construct textile braiding manufacturing methods to facilitate high precision and accurate measurements using optical fiber Bragg grating sensors for various structures.
Songbi Lee, Joohyeon Lee
doaj   +2 more sources

Self-heated fiber Bragg grating sensors [PDF]

open access: yesApplied Physics Letters, 2005
This letter demonstrates an approach for tuning fiber Bragg grating sensors with optical energy carried in the same optical fiber. Optical energy carried in the optical fiber was used to heat in-fiber Bragg gratings in order to alter the grating’s optical response to surrounding media.
Chen, KP   +4 more
openaire   +3 more sources

Layered Monitoring of Ground Subsidence Based on Ultra-Weak FBG Sensing Technology: A Case Study in Gaoyang County, China [PDF]

open access: yesMicromachines
The primary objective of layered settlement monitoring of deep soil is to obtain settlement data for both the soil and superstructure, enabling appropriate measures to be taken to ensure the structure’s safety and stability.
Haigang Wang   +6 more
doaj   +2 more sources

Fiber Optic Sensor of Axial Strain and Dynamic Transverse Force Based on Intensity Demodulation [PDF]

open access: yesSensors
This paper presents a fiber-optic sensor with intensity demodulation for simultaneous measurement of dynamic transverse force and axial strain. The sensor uses a Sagnac loop filter with a polarization-maintaining photonic crystal fiber (PM-PCF) that is ...
Cezary Kaczmarek, Malgorzata Detka
doaj   +2 more sources

SENSITIVITY VARIATION RESEARCH OF TILTED FIBER BRAGG GRATING DURING CHEMICAL ETCHING [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The paper presents experimental results of the chemical etching duration impact on the tilted fiber Bragg grating transmission spectrum.
Diana O. Gagarinova   +5 more
doaj   +1 more source

Generalized Resonance Sensor Based on Fiber Bragg Grating

open access: yesPhotonics, 2021
In response to the difficulty of weak detection of early bearing damage, resonance demodulation technology and the principle of fiber Bragg grating sensing strain were combined to design a fiber Bragg grating generalized resonance sensor, which can ...
Xinxin Chen   +6 more
doaj   +1 more source

Fiber Bragg grating vacuum sensors [PDF]

open access: yesApplied Physics Letters, 2005
This letter demonstrates functional enhancements of fiber Bragg grating sensors powered by in-fiber light. High-power laser light transmitted in double-clad optical fiber was extracted from the fiber core to heat an on-fiber metal coating. When the power-laser is turned off, the fiber Bragg grating is used as a passive component for temperature sensing.
McMillen, B   +5 more
openaire   +1 more source

In-Fiber Thermally Diffused Coupler and Fiber Bragg Grating Inscribed in Twin-Core Fiber for Sensitivity-Enhanced Vector Bending Sensing

open access: yesPhotonic Sensors, 2023
A vector bending fiber sensor based on core-by-core inscribed fiber Bragg gratings in a twin-core fiber has been proposed and experimentally demonstrated.
Lingzhi Meng   +5 more
doaj   +1 more source

Fluorinated Polyimide-Film Based Temperature and Humidity Sensor Utilizing Fiber Bragg Grating

open access: yesSensors, 2020
We propose and demonstrate a temperature and humidity sensor based on a fluorinated polyimide film and fiber Bragg grating. Moisture-induced film expansion or contraction causes an extra strain, which is transferred to the fiber Bragg grating and leads ...
Xiuxiu Xu   +3 more
doaj   +1 more source

Fiber-Optic Bragg Gratings for Temperature and Pressure Measurements in Isotope Production Targets for Nuclear Medicine

open access: yesApplied Sciences, 2020
A Bragg grating inscribed into an inorganic optical fiber was tested in proton and neutron fields up to doses of 472 Gy. Observation showed that radiation had no effect on the performance of the Fiber Bragg Grating (FBG) used as a gauge measuring ...
Michael Bakaic   +6 more
doaj   +1 more source

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