19 October 2016 Theoretical analysis of temperature response of the fiber Bragg grating embedded in composite insulator
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Proceedings Volume 10153, Advanced Laser Manufacturing Technology; 101530X (2016) https://doi.org/10.1117/12.2246827
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
The most important part of composite insulator is the joint of the composite rod and the metal end-fitting because most of mechanical faults take place here. Thus it is necessary to on-line monitoring of the joints. This paper theoretically analyzes the response behavior of the embedded fiber Bragg grating (FBG) in the joint based on our preliminary analysis of the stress distribution of the composite rod. Comprehensive considering the thermal stress and the material thermal coefficient, the reflection spectrum of FBG embedded in three typical locations is simulated. The simulation result shows that the wavelength shift of the FBG embedded in the joint is about 180pm larger than those embedded out of joint when the temperature rises 10°C. This result has the directive significance for the embedding position and the embedded way. It can be used to monitor the mechanical strength changing with temperature, to improve the manufacture technology of the joint, and to detect the change of electrical property.
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Wen Chen, Wen Chen, Xiaopeng Dong, Xiaopeng Dong, Fan Yang, Fan Yang, Xiao Zeng, Xiao Zeng, Jianhui Ma, Jianhui Ma, Xiaonan Wang, Xiaonan Wang, Xiangfang Ma, Xiangfang Ma, } "Theoretical analysis of temperature response of the fiber Bragg grating embedded in composite insulator", Proc. SPIE 10153, Advanced Laser Manufacturing Technology, 101530X (19 October 2016); doi: 10.1117/12.2246827; https://doi.org/10.1117/12.2246827
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