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An optimized scheme of fiber-optic flexural seismometer with higher sensitivity
PENG Feng * #,LV Yan,TIAN Shuaifei,CHEN Wenjing
Key Laboratory of In-Fiber Integrated Optics, Ministry of Education, College of Science, Harbin Engineering University, Harbin 150001
*Correspondence author
#Submitted by
Subject:
Funding: Specialized Research Fund for the Doctoral Program of Higher Education （No.20132304120024）
Opened online:16 August 2016
Accepted by: none
Citation: PENG Feng,LV Yan,TIAN Shuaifei.An optimized scheme of fiber-optic flexural seismometer with higher sensitivity[OL]. [16 August 2016] http://en.paper.edu.cn/en_releasepaper/content/4702088
 
 
The sensitivity of fiber optical seismometer could be further improved by optimizing the structure and using multilayer fiber coils. In this paper, the strain distribution of fiber coils is analyzed and simulated, the simulated result shows that not only the position, but also the number of the fiber layers have significant effects on the sensitivity. A 7-layer fiber coil that fixed on the optimized position obtain a higher sensitivity than other structures. The optimized structure is useful for designing a more practical disk-type seismometer that with higher sensitivity and lighter weight.
Keywords:fiber optic sensors; seismometer; sensivity
 
 
 

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