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????????????????????? ? ?, ? ?, ? ? ?????????????????? ????????????????????????????????????????????????????????????????????????????????????(FBG)????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????FBG???????????????????0.999??????-2.11pm/mm?????FBG?????????????????????????????????????????????????????????????????????????? ???????????(FBG)??????????????? Designing and Testing of the Sensors in the System of fibreoptic Settlement Monitoring Xiao Song, Deng Zhong, Yao Yao (School of Communication and Information Engineering, UESTC) Abstract: The engineering science of fiber-optic sensing has its unique advantages like anti-electromagnetic interference, corrosion resistance, tidy insulation, high sensitivity, passive, and may constitute a large-scale lucre of sensing elements, consequently make it a more than and more important theatrical role in the field of security monitoring suc h as geology health monitoring.

In this paper, we proposed a structure of settlement sensor based on FBG jut and the elastic metal plosive speech sound exploitation the sensing principle of Fiber Bragg Gratings. We built a research laboratory test platform and conducted comprehensive experiments on the sensors performance including sensing range, linearity, repeatability, sensitivity, long-term stability and so on. By analyzing the test results we found the factors that decided the performance of sensors and made improvements on the structure. by and by the test results showed that the linearity of central wavelength shifting to urine jimmy difference is higher than 0.999 and ! the sensitivity reached -2.11pm/mm. We also study the cross-sensitivity of arrive at and temperature, and by testing the temperature compensation method we preclude the influence of temperature. Finally we packaged the sensors in the consideration of a pattern of practical applications and installed the sensors on a high-speed groom basis near Deyang. Key words: Fiber...If you want to bugger sullen a full essay, order it on our website: BestEssayCheap.com

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