Truly distributed coaxial cable sensing based on random inhomogeneities

Chen Zhu; Jie Huang

doi:10.1117/12.2518792

14 May 2019 Truly distributed coaxial cable sensing based on random inhomogeneities

Chen Zhu, Jie Huang

Proceedings Volume 11000, Fiber Optic Sensors and Applications XVI; 110000N (2019) https://doi.org/10.1117/12.2518792
Event: SPIE Defense + Commercial Sensing, 2019, Baltimore, MD, United States

Abstract

Inspired by Rayleigh backscattering based sensing methodology on an optical fiber, we present a novel sensing concept based on the random inhomogeneities on a coaxial cable. As an analogy of Rayleigh backscattering along an optical fiber length, “backscattering” also exists from a commercial cable due to its inherent defects along a cable length which induce a local variation. The accumulated back-scattered signals along the cable can be obtained using frequency domain reflectometry. By analyzing the shift in the local back-scattered signal, the local perturbations can be determined, so that truly distributed sensing capability using a coaxial cable can be achieved.

Citation Download Citation

Chen Zhu and Jie Huang "Truly distributed coaxial cable sensing based on random inhomogeneities", Proc. SPIE 11000, Fiber Optic Sensors and Applications XVI, 110000N (14 May 2019); https://doi.org/10.1117/12.2518792

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