Specialty fibers have introduced new levels of flexibility and variability in distributed fiber
sensing applications. In particular, distributed acoustic sensing (DAS) systems utilized] the …

摘要基于相位敏感光时域反射技术的分布式声波传感(DAS) 系统可实现大范围分布式的声波
探测, 近年来, 在油气勘探, 地质成像, 管道安全, 周界安防等应用领域受到研究关注 …

Optical fiber distributed acoustic sensing (DAS) based on phase-sensitive optical time
domain reflectometry (φ-OTDR) is in great demand in many long-distance application fields …

Nowadays, early defect detection plays a significant role for the railway safety warning.
However, the existing methods cannot satisfy the requirements of real-time and high …

Distributed acoustic sensing (DAS) is a fiber sensing technology based on Rayleigh
scattering, which transforms optical fiber into a series of sensing units. It has become an …

Fiber optic sensors that utilize backscattered light offer distributed real-time measurements
and have been seen tremendous improvements in sensing distance and spatial resolution …

相位敏感光时域反射(Φ-OTDR) 传感系统具有高动态响应, 高灵敏等特点, 在大型工程结构健康
监测领域具有巨大的应用潜力. 而Φ-OTDR 系统仪器化水平和工程应用很大程度上取决于数字 …

In this paper, a lightweight and fully distributed fiber-optic streamer with small channel
spacing based on the distributed acoustic sensing is developed and demonstrated for the …

摘要我国大型基础设施的建设规模已多年位居世界之首, 分布式光纤传感技术(DOFS)
作为大型基础设施健康状态实时监测最有潜力的技术, 近年来得到了迅速发展. 针对DOFS …

The phase-sensitive optical time-domain reflectometry (Φ-OTDR) sensing system has the
characteristics of high dynamic response and high sensitivity, and has great potential in the …