Two-dimensional distributed strain sensing with an Archimedean spiral arrangement in optical frequency domain reflectometry

Yamei Guo; Zhenyang Ding; Kun Liu; Junfeng Jiang; Chenhuan Wang; Tiegen Liu

Nanotechnology and Precision Engineering (Sep 2018)

Two-dimensional distributed strain sensing with an Archimedean spiral arrangement in optical frequency domain reflectometry

Yamei Guo,
Zhenyang Ding,
Kun Liu,
Junfeng Jiang,
Chenhuan Wang,
Tiegen Liu

Affiliations

Yamei Guo: School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Tianjin 300072, China; Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin 300072, China
Zhenyang Ding: Corresponding author at: School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China.; School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Tianjin 300072, China; Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin 300072, China
Kun Liu: School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Tianjin 300072, China; Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin 300072, China
Junfeng Jiang: School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Tianjin 300072, China; Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin 300072, China
Chenhuan Wang: School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Tianjin 300072, China; Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin 300072, China
Tiegen Liu: School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China; Institute of Optical Fiber Sensing of Tianjin University, Tianjin 300072, China; Tianjin Optical Fiber Sensing Engineering Center, Tianjin 300072, China; Key Laboratory of Opto-Electronics Information Technology, Ministry of Education, Tianjin 300072, China

Journal volume & issue: Vol. 1, no. 3
pp. 187 – 190

Abstract

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We demonstrate a distributed two-dimensional (2D) strain-sensing system in optical frequency domain reflectometry (OFDR) with an Archimedean spiral arrangement of the sensing fiber. The Archimedean spiral describes a simple relationship between the radial radius and polar angle, such that each circle (the polar angle from 0 to 2π) can sense the 2D strain in all directions. The strain between two adjacent circles can also be easily obtained because an Archimedean spiral facilitates sensing of every angle covering the full 2D range. Based on the mathematical relation of Archimedean spirals, we deduce the relationship between the one-dimensional position of the sensing fiber and 2D distribution in polar coordinates. The results of the experiment show that an Archimedean spiral arrangement system can achieve 2D strain sensing with different strain load angles. Keywords: Optical frequency domain reflectometry (OFDR), Archimedean spiral, Distributed optical fiber sensing

Published in Nanotechnology and Precision Engineering

ISSN: 1672-6030 (Print); 2589-5540 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Technology: Engineering (General). Civil engineering (General)
Website: https://aip.scitation.org/journal/npe

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