典型文献
Fiber optic strain rate sensor based on a differentiating interferometer
文献摘要：
Strain rate is an important basic physical parameter in the fields of deformation observation,geodetic measurement,and geophysical monitoring.This paper proposes a novel fiber optic strain rate sensor(FOSRS)that can directly measure the strain rate through a differentiating interferometer that converts the strain rate to the optical phase.The sensing principle,sensitivity,resolution,and dynamic range of the proposed FOSRS are theoretically analyzed and verified by experiment.The experimental results show that the developed FOSRS with a 12.1 m sensing fiber has a flat sensitivity of 69.50 dB,a nanostrain rate(nε/s)resolution,and a dynamic range of better than 95 dB.An ultrahigh static resolution of 17.07 pε/s can be achieved by using a 25.277 km sensing fiber for long baseline measurements.The proposed method significantly outperforms existing indirect measurement methods and has potential applications in geophysical monitoring and crustal deformation observation.
文献关键词：
中图分类号：
作者姓名：
HUICONG Li;WENZHU HUANG;WENTAO ZHANG;JIANXIANG ZHANG
作者机构：
State Key Laboratory of Transducer Technology,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China;Shenzhen Academy of Disaster Prevention and Reduction,Shenzhen 518003,China
文献出处：
引用格式：
[1]HUICONG Li;WENZHU HUANG;WENTAO ZHANG;JIANXIANG ZHANG-.Fiber optic strain rate sensor based on a differentiating interferometer)[J].光子学研究（英文）,2022(11):2599-2606
A类：
FOSRS,nanostrain
B类：
Fiber,rate,sensor,differentiating,interferometer,Strain,important,basic,parameter,fields,deformation,observation,geodetic,geophysical,monitoring,This,paper,proposes,novel,fiber,that,directly,through,converts,optical,phase,sensing,principle,sensitivity,resolution,dynamic,range,proposed,are,theoretically,analyzed,verified,by,experimental,results,show,developed,flat,dB,better,than,An,ultrahigh,static,achieved,using,long,baseline,measurements,significantly,outperforms,existing,indirect,methods,potential,applications,crustal
AB值：
0.494923
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