Evaluation of fiber optic Raman scattering distributed temperature sensor between–196 and 400° C

MSP e Silva, THC de Barros, HP Alves… - IEEE Sensors …, 2020 - ieeexplore.ieee.org
Distributed temperature sensors have been proposed for a wide variety of scientific and
industrial applications and represent an important technology for modern infrastructures …

Raman DTS based on OTDR improved by using gain-controlled EDFA and pre-shaped simplex code

JB Rosolem, FR Bassan, DE de Freitas… - IEEE Sensors …, 2017 - ieeexplore.ieee.org
This paper described a distributed temperature sensing (DTS) system based on Raman
scattering using pre-shaped simplex code (S code) with erbium-doped fiber amplifiers …

Temperature, refractive index, and corrosion simultaneous monitoring using Raman anti-Stokes reflectometric optical fiber sensor

MSP e Silva, HP Alves, HJB de Oliveira… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
An optical sensor that can measure multiple parameters is a promising area of research.
This can also be attributed to the fact that monitoring two or more measurands at the same …

Impact of pulse width on the sensitivity and range of a Raman-based distributed fiberoptic temperature sensor

MSP Silva, HP Alves, JF Nascimento… - Journal of Microwaves …, 2018 - SciELO Brasil
This work presents the operation of a spontaneous Raman scattering-based distributed fiber-
optic temperature sensor using a commercial OTDR and a standard EDFA optical …

Research on RP-EDF amplification characteristics based on φ-OTDR system

L Du, Y Shen, S Yang, Y Liang - Optik, 2022 - Elsevier
Extending the sensing distance is of great significance for expanding the application of
phase-sensitive optical time-domain reflectometry (φ-OTDR) in remote perimeter monitoring …

[PDF][PDF] Estimação de Parâmetros de Tráfego em Rodovias Usando Redes Neurais Convolucionais e Traços Simulados de ϕ-OTDR

RA Colares - 2022 - repositorio.unicamp.br
As redes ópticas encontram aplicações não só em sistemas de comunicações, mas também
em sensoriamento, por exemplo utilizando o reflectômetro óptico no domínio do tempo …