Share Email Print
cover

Proceedings Paper • new

Multipoint strain sensing system based on fiber loop ringdown and frequency-shifted interferometry
Author(s): Zehao Chen; Chunfu Cheng; Yiwen Ou; Zhangyong Yang; Jiaxuan Chen; Hui Lv
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

We proposed a novel multipoint sensing method for large strain measurement combined fiber loop ringdown (FLRD) and frequency-shifted interferometry (FSI). Using this method, a biconical tapered multimode fiber was used as a sensor head for large strain measurement and a serial dual-point strain sensing system was experimentally validated. By measuring the ringdown distance of each FSI-FLRD strain sensor, the strain and position of each sensor can be simultaneously obtained. Using such strain sensors, the strain sensitivities of 0.51337 km-1·mε-1 and 0.8667 km-1·mε-1 within a large measurement range of up to 6 mε were achieved.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11338, AOPC 2019: Optical Sensing and Imaging Technology, 113380O (18 December 2019); doi: 10.1117/12.2541914
Show Author Affiliations
Zehao Chen, Hubei Univ. of Technology (China)
Chunfu Cheng, Hubei Univ. of Technology (China)
Yiwen Ou, Hubei Univ. of Technology (China)
Zhangyong Yang, Hubei Univ. of Technology (China)
Jiaxuan Chen, Hubei Univ. of Technology (China)
Hui Lv, Hubei Univ. of Technology (China)


Published in SPIE Proceedings Vol. 11338:
AOPC 2019: Optical Sensing and Imaging Technology
John E. Greivenkamp; Jun Tanida; Yadong Jiang; HaiMei Gong; Jin Lu; Dong Liu, Editor(s)

© SPIE. Terms of Use
Back to Top