分布式光纤声波传感技术研究进展

doi:10.3969/j.issn.0255-8297.2018.01.003

Abstract

Abstract:

Distributed fiber acoustic sensing (DAS) has wide application prospects, including security monitoring for important places and critical infrastructure, large-scale structure health monitoring,oil and gas resource exploration, etc. This is due to its capability of quantitative measurement for distributed dynamic strain over a long distance in real time. Recently, this technology attracts much attention from scientists and industries all over the world. In this paper, the development progress of distributed fiber acoustic sensing is reviewed and commented. Moreover, the relevant research in the author's group, represented by phase-sensitive optical time domain reflectometry (Φ-OTDR), are highlighted. Three parts of the research are summarized:high-fidelity signal restoration,system performance improvement, and engineering applications.

Key words: distributed acoustic sensing, Rayleigh scattering, fiber-optic sensor, phase-sensitive optical time domain reflectometry (Φ-OTDR)

CLC Number:

TN29

CAI Hai-wen, YE Qing, WANG Zhao-yong, LU Bin, CAO Yu-long. Progress in Research of Distributed Fiber Acoustic Sensing Techniques[J]. Journal of Applied Sciences, 2018, 36(1): 41-58.

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Progress in Research of Distributed Fiber Acoustic Sensing Techniques

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