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Braided Fabrication of a Fiber Bragg Grating Sensor [PDF]
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
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Self-heated fiber Bragg grating sensors [PDF]
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
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Layered Monitoring of Ground Subsidence Based on Ultra-Weak FBG Sensing Technology: A Case Study in Gaoyang County, China [PDF]
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
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Fiber Optic Sensor of Axial Strain and Dynamic Transverse Force Based on Intensity Demodulation [PDF]
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
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SENSITIVITY VARIATION RESEARCH OF TILTED FIBER BRAGG GRATING DURING CHEMICAL ETCHING [PDF]
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
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Generalized Resonance Sensor Based on Fiber Bragg Grating
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
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Fiber Bragg grating vacuum sensors [PDF]
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
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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
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Fluorinated Polyimide-Film Based Temperature and Humidity Sensor Utilizing Fiber Bragg Grating
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
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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
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