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IDENTIFICATION OF TEMPERATURE SENSITIVITY DETECTOR ON FIBER BRAGG GRATING (FBG) SENSOR
Kontrol'. Diagnostika, 2022The article presents the results of work on the study of the dependence of the results of temperature measurements using fiber Bragg gratings (FBGs). It was found that FBGs not only have different initial sensitivity, but also exhibit nonlinearity even in a narrow temperature range (from –30 to +70 °C).
V. A. Aniskovich +4 more
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Fiber optic acoustic sensor based on Fiber Bragg grating Fabry-Perot(FBG-FP)cavity
2021 19th International Conference on Optical Communications and Networks (ICOCN), 2021An acoustic sensor based on Fiber Bragg grating and Fabry Perot (FBG-FP) cavity is introduced in this paper. In the low frequency (20 Hz) field, the sensitivity reaches 0.43 V/Pa. In the intermediate frequency range of 700 Hz-2 kHz, it has relatively flat frequency response characteristics, and the sensitivity is 28.2 mV/Pa.
Pengfei Zhang +6 more
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Embedding optical Fiber Bragg Grating (FBG) sensors in 3D printed casings
Optical Fiber Technology, 2019Abstract This paper aims to numerical and experimentally study and propose Fiber Bragg Grating (FBG) sensors embedded in 3D printed casings. 3D printed casings offer design freedom, enabling strain measurement of structural systems with complex configuration, and, at low cost due to its easiness to manufacture.
Natalia Reggiani Manzo +3 more
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Fiber Bragg-grating (FBG) resonators for high-sensitivity multi-parameter sensing
2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, 2007In this work, we have devised different ways to interrogate a single-mode FBGFP sensor, based on both the PDH lock and a polarization-spectroscopy scheme, which extends the idea of Hansch et al. and exploits the internal fiber birefringence and the additional birefringence induced by the grating-inscription process.
Gagliardi G. +3 more
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Hydrogen sensors based on palladium electroplated fiber Bragg gratings (FBG)
13th International Conference on Optical Fiber Sensors, 1999The response of a new hydrogen sensor based on palladium electroplated Fiber Bragg Grating (FBG) in 0.6p hydrogen at 95°C is reported. A heat treatment at 150°C in air is critical to fast sensor response.
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Application of the fiber Bragg grating (FBG) sensors in coal mines
SPIE Proceedings, 2013The FBG strain sensors were applied to the Dongtan Mine to monitor the stress variation of the lined wall in the gateway retained along goaf of No. 3203 coal mining face on line. The results showed that the FBG strain sensor with high measuring range could measure the stress variation accurately during the support process of the gateway retained along ...
Jinyu Wang +4 more
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Fiber Bragg grating interrogation using FBG filters and artificial neural network
2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC), 2017Optical fiber sensors have become a popular alternative to traditional electronic sensors due to their numerous advantages. An important challenge in deploying optical sensors is the interrogation of the sensor, that is, recovering the measured value from the sensor output.
Marco Aurelio Juca +1 more
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Resonant Fiber Bragg Grating (FBG) force/strain sensor
European Workshop on Optical Fibre Sensors (EWOFS 2023), 2023Ashkenazy Eli, Slava Krylov, Moshe Tur
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Investigation of fiber laser pulses by a fiber-Bragg-grating (FBG) spectrum analyzer
2003 Conference on Lasers and Electro-Optics Europe (CLEO/Europe 2003) (IEEE Cat. No.03TH8666), 2005We prepared two fiber-Bragg-gratings (FBG)-arrays for the wavelength range 1074 - 1100 nm, both with a spectral width of 0.1 nm and a reflectivity of about 1% of the individual gratings so that pulses are investigated from an Yb fiber laser, Q-switched by an acousto-optical modulator with a repetition rate of 2.6 kHz. Using FBG-array the development of
S. Jetschke +5 more
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