Theoretical study on cross sensitivity of fiber Bragg grating sensor affected by double and triple external variables

Bin-bin Luo; Ming-fu Zhao; Shao-fei Wang; Xiao-jun Zhou; De-yi Huang; Xue-mei Cao

doi:10.1007/s11801-011-0178-9

Optoelectronics Letters ›› 2011, Vol. 7 ›› Issue (5) : 358-362. DOI: 10.1007/s11801-011-0178-9

Article

Theoretical study on cross sensitivity of fiber Bragg grating sensor affected by double and triple external variables

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Abstract

In this work, the theoretical model of FBG when it is affected by double external variables (temperature and transverse pressure) and triple external variables (temperature, axial strain and transverse pressure) is deduced, respectively. The simulated results show that the properties of cross sensitivity would change in a certain regulation with the external effects and fiber parameters. At the same time, some valuable suggestions about how to improve the measurement accuracy are put forward as well.

Keywords

Axial Strain / Fiber Bragg Grating / Fiber Material / Effective Refractive Index / External Variable

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Bin-bin Luo, Ming-fu Zhao, Shao-fei Wang, Xiao-jun Zhou, De-yi Huang, Xue-mei Cao. Theoretical study on cross sensitivity of fiber Bragg grating sensor affected by double and triple external variables. Optoelectronics Letters, 2011, 7(5): 358‒362 https://doi.org/10.1007/s11801-011-0178-9

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This work has been supported by the National Natural Science Foundation of China (No.50876120), and the Natural Science Foundation Project of Chongqing, China (No.2010BB2298).