L. Rossi, L. Cheng, W. De Jong, R. Jansen, G. Bolognini
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引用次数: 0
Abstract
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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