High-performance vector bending and orientation distinguishing curvature sensor based on asymmetric coupled multi-core fibre

被引：34

作者：

Arrizabalaga, Oskar ^{[1
]}

Sun, Qi ^{[2
]}

Beresna, Martynas ^{[2
]}

Lee, Timothy ^{[2
]}

Zubia, Joseba ^{[1
]}

Velasco Pascual, Javier ^{[3
]}

Saez de Ocariz, Idurre ^{[3
]}

Schulzgen, Axel ^{[4
]}

Enrique Antonio-Lopez, Jose ^{[4
]}

Amezcua-Correa, Rodrigo ^{[4
]}

Villatoro, Joel ^{[1
,5
]}

Brambilla, Gilberto ^{[2
]}

机构：

[1] Univ Basque Country, Dept Commun Engn, UPV EHU, Ingeniero Torres Quevedo S-N, Bilbao 48013, Spain

[2] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[3] Fdn Ctr Tecnol Aeronaut CTA, Minano, Spain

[4] Univ Cent Florida, CREOL, Coll Opt & Photon, Orlando, FL 32816 USA

[5] IKERBASQUE Basque Fdn Sci, Bilbao 48011, Spain

来源：

SCIENTIFIC REPORTS | 2020年 / 10卷 / 01期

关键词：

D O I：

10.1038/s41598-020-70999-8

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Fibre optic technology is rapidly evolving, driven mainly by telecommunication and sensing applications. Excellent reliability of the manufacturing processes and low cost have drawn ever increasing attention to fibre-based sensors, e.g. for studying mechanical response/limitations of aerospace composite structures. Here, a vector bending and orientation distinguishing curvature sensor, based on asymmetric coupled multi-core fibre, is proposed and experimentally demonstrated. By optimising the mode coupling effect of a seven core multi- core fibre, we have achieved a sensitivity of -1.4 nm/degrees as a vector bending sensor and -17.5 nm/m(-1) as a curvature sensor. These are the highest sensitivities reported so far, to the best of our knowledge. In addition, our sensor offers several advantages such as repeatability of fabrication, wide operating range and small size and weight which benefit its sensing applications.

引用

页数：10

共 35 条

[11] Structural Health Monitoring in Composite Structures by Fiber-Optic Sensors [J].