Optical Engineering
光纤分布式声学传感
Fiber-Optic Distributed Acoustic SensingA sensing technology that uses optical fibers to detect acoustic waves along the length of the fiber. It is based on the principle of coherent optical time-domain reflectometry (C-OTDR) and utilizes the phase changes of backscattered light caused by acoustic pressure variations. / 一种利用光纤检测光纤沿线声波的技术。它基于相干光时域反射（C-OTDR）原理，利用声压变化引起背向散射光相位变化来工作。
- Knowledge type
- 工艺技术
- First proposed or discovered
- Proposer
- Turkey Farm member
- Creator
- 农场主
- Last updated
- 2026-11-14 00:05:45
Sub-knowledge points
C-OTDRPhase-Sensitive Optical Time-Domain Reflectometry (Φ-OTDR)Coherent Detection
Higher-order knowledge points
Quantum Sensing and Metrology / 自然理论Distributed Acoustic Sensing (DAS)
Main parameters and performance indicators
Spread-Spectrum Codes: Sequences used to modulate the light to improve signal-to-noise ratio and resolutionFiber Length: The physical length of the sensing fiberSpatial Resolution: The minimum distance between two distinguishable acoustic events
Open problems
No unresolved problem recorded yet
Related literature
ranked by community starsComparative Analysis of Spread-Spectrum Codes for Fibre-Optic Distributed Acoustic SensingOpen source
Related products and links
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Creation and modification trail
1 recordsRecord title: Fiber-Optic Distributed Acoustic Sensing.
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