Distributed strain sensor with wide dynamic-range and high resolution

Dexin Ba, Qi Chu, Ying Wang, Li Li, Can Li, Yongkang Dong

Research output: Contribution to conferencePaperpeer-review

Abstract

A large-range and high-resolution optical fiber sensor based on Brillouin and Rayleigh scattering is proposed, which merges frequency-scanning phase-sensitive optical time-domain reflectometry (ϕ-OTDR) and Brillouin optical time domain analysis (BOTDA) via an adaptive signal corrector (ASC). Its measure range is determined by BOTDA, which could reach the limitation of optical fiber, while the resolution is as high as ϕ-OTDR. In the concept-proof experiments, a maximum strain variation up to 302.9 µϵ is measured with a resolution of 5.5 nϵ.

Original languageEnglish
DOIs
StatePublished - 2023
Externally publishedYes
Event28th International Conference on Optical Fiber Sensors, OFS 2023 - Naka-ku, Hamamatsu-shi, Japan
Duration: 20 Nov 202324 Nov 2023

Conference

Conference28th International Conference on Optical Fiber Sensors, OFS 2023
Country/TerritoryJapan
CityNaka-ku, Hamamatsu-shi
Period20/11/2324/11/23

Bibliographical note

Publisher Copyright:
© Optica Publishing Group 2023, © 2023 The Author(s)

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