DAS optical cable model
-based distributed acoustic sensing (DAS) systems use fiber optic cables to provide distributed strain sensing. Such a system allows acoustic frequency strain signals to be detected over large distances and in harsh environments. Our method represents cable geometries using splines, enabling efficient exploration of layouts while respecting physical. Using techniques from algebraic topology, we know that there is a mathematical foundation for deforming a helically wound fibre into a straight fibre for a DAS system. This study proposed a dynamic model of the interaction between the optical cable and the soil, analyzed the impact of the dynamic parameters of the optical cable and soil on the sensitivity of the DAS system, and validated the theoretical analysis through experiments.
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