[PDF][PDF] Advances in phase-sensitive optical time-domain reflectometry
Phase-sensitive optical time-domain reflectometry (Φ-OTDR) has attracted numerous
attention due to its superior performance in detecting the weak perturbations along the fiber …
attention due to its superior performance in detecting the weak perturbations along the fiber …
Sensitivity improvement of phi-OTDR by fiber cable coils
KV Stepanov, AA Zhirnov, KI Koshelev, AO Chernutsky… - Sensors, 2021 - mdpi.com
We present a theoretical and experimental study in which we increased the sensitivity of a
phase-sensitive optical time-domain reflectometer (phi-OTDR). This was achieved by …
phase-sensitive optical time-domain reflectometer (phi-OTDR). This was achieved by …
[PDF][PDF] 分布式光纤声波传感及其地震波检测应用
王照勇， 卢斌， 叶蕾， 应康， 孙延光， 程楠… - Laser & …, 2021 - researching.cn
摘要分布式光纤声波传感(DAS) 技术以独特的动态在线监测, 大范围密集测量,
方便布设免维护等优势, 获得了周界安防, 结构健康, 交通运输, 油气勘探, 海洋水声等多领域专家 …
方便布设免维护等优势, 获得了周界安防, 结构健康, 交通运输, 油气勘探, 海洋水声等多领域专家 …
Ultra long single span distributed sensing distance over 200km based on the phase-sensitive OTDR with bidirectional high-order Raman amplification
M Nie, J Xu, J Yu, J Liu, X Zhang, J Wu… - 2021 19th …, 2021 - ieeexplore.ieee.org
An ultra-long phase-sensitive optical time domain reflectometry (Φ-OTDR) that can achieve
sensing distance 205.46 km single fiber with spatial resolution of 15m is presented to solve …
sensing distance 205.46 km single fiber with spatial resolution of 15m is presented to solve …