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Conferences > OFS > 2022 > Th4 > Th4.26

Towards ultra-stable DAS measurements

Pedro J. Vidal-Moreno, Etienne Rochat, María R. Fernández-Ruiz, Hugo Martins, Sonia Martin-Lopez, Manuel Ocaña, and Miguel Gonzalez-Herraez

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Abstract

Distributed acoustic sensors cumulatively measure fiber variations, introducing a 1/f noise that makes long-term measurements impossible. We present an “absolute” measurement method that allows accurate single-shot measurements at frequencies from <0.1 μHz to acoustic frequencies.

© 2022 The Author(s)

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