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

Gas monitoring in mines and tunnels is the key to ensuring safe production. Nowadays,
optical fiber gas sensors depend on the advantages of nonelectrical signal transmission …

In this paper, we demonstrate a fully distributed hydroacoustic sensing based on the ultra-
highly sensitive and lightweight fiber-optic hydrophone cable assisted with heterodyne …

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 …

Traditional models ignore the temperature gradients caused by anisotropic heat conduction
process in the axial and radial directions of the velocity probe of a thermal mass flowmeter …

Combining fiber Bragg grating (FBG) sensors and finite element simulation analysis, an
online monitoring method for non-invasive distributed flow velocity in pipelines has been …

基于相位敏感光时域反射的光纤分布式声波传感技术(DAS) 具有长距离, 高灵敏, 高空间分辨率,
低成本, 无源, 抗电磁干扰等显著优势, 非常契合石油行业中的地震勘探和管道监测等需求 …

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 …

Pipeline integrity management is of great significance for ensuring the safety of life and
property. Due to the stable running, no pressure drops, and hidden characteristics, the …

In this article, a mechanical wind sensor based on additive manufacturing technology is
demonstrated for the first time. The sensor is composed of a cylindrical sensing structure …