Open AccessSimultaneous monitoring of temperature, pressure, and strain through Brillouin sensors and a hybrid BOTDA/FBG for disasters detection systems
Author(s) -
Zrelli Amira
Publication year - 2019
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2018.5260
Subject(s) - brillouin scattering , fiber bragg grating , pressure sensor , brillouin zone , materials science , optical fiber , acoustics , optics , computer science , environmental science , physics , mechanical engineering , engineering
In this study, the authors deal with the problem of simultaneous measurement of temperature, pressure, and strain using novel technologies of optical fibre (OF) sensors. Indeed, they address the problem of early surveillance systems to detect disasters in real‐time. Through these sensors, they try to predict prospective and possible disasters (landslides, fire, earthquake etc.). Temperature, pressure, and strain should be simultaneously monitored to prevent betimes any damages. They propose a novel design of disaster system, which is able to measure the variation of temperature, pressure, and strain using optical sensors based on Brillouin scattering, two types of these sensors are discussed Brillouin optical time division reflectometers and Brillouin optical time division analysis (BOTDA). Thus, they indicate the performance of BOTDA sensors on disaster detection systems. However, these sensors cannot measure pressure variation, so they introduce the application of hybrid BOTDA/fibre Bragg grating (FBG) system in order to predict disasters caused by pressure.