12 May 2016 Simultaneous temperature and tension monitoring of a multi-layer composite film with embedded Hi-Bi optical fiber Bragg gratings
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Abstract
Hi-Bi FBGs were employed and embedded in multi-layer composite films (Tedlar + Dacron +Mylar) to monitor temperature and tension. The temperature and tension characteristics of those embedded FBGs were demonstrated quantitatively. The Bragg wavelengths of embedded FBGs shift linearly with the temperature and tension loading on the multi-layer composite films. The slow-axis mode and the fast-axis mode of the Hi-Bi FBGs have different temperature sensitivity and tension sensitivity. The Hi-Bi FBGs have higher temperature sensitivity at low temperature than that at high temperature. Compared with non-embedded, the tension sensitivity of the embedded Hi-Bi FBG increased from 0.01424nm/N and 0.01439nm/N to 0.01516nm/N and 0.01532nm/N, respectively corresponding to the slow-axis mode and the fast-axis mode.
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Guanghui Chen, Guanghui Chen, Jianbo Sha, Jianbo Sha, Ming Zhao, Ming Zhao, Kan Gao, Kan Gao, Ping Xue, Ping Xue, Lianqing Zhu, Lianqing Zhu, } "Simultaneous temperature and tension monitoring of a multi-layer composite film with embedded Hi-Bi optical fiber Bragg gratings", Proc. SPIE 9852, Fiber Optic Sensors and Applications XIII, 98520N (12 May 2016); doi: 10.1117/12.2222155; https://doi.org/10.1117/12.2222155
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