用于ϑ-OTDR分布式声学传感的两级预放大

2023 Photonics & Electromagnetics Research Symposium (PIERS) Pub Date : 2023-07-03 DOI:10.1109/PIERS59004.2023.10221232

L. Rossi, L. Cheng, W. De Jong, R. Jansen, G. Bolognini

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引用次数: 0

摘要

提出了一种ϑ-OTDR干涉传感器，采用非线性预放大方法来抵消信号衰落，并用于表征荷兰测量井应变值的本底噪声。表征表明，该系统能够在0.1-100 Hz频率范围内检测低于1 ne ε的应变噪声电平。

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Two-Stage Preamplification for ϑ-OTDR Distributed Acoustic Sensing

A ϑ-OTDR interferometric sensor employing a nonlinear preamplification approach to couneract signal fading is proposed and used to characterize the noise floor for strain values in a survey well in the Netherlands. The characterization shows the system is capable of detecting strain noise levels below 1 nε in the 0.1-100 Hz frequency range.

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2023 Photonics & Electromagnetics Research Symposium (PIERS)

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