典型文献
Bend-tolerant fiber sensor based on BOTDR system
文献摘要：
A simple and inexpensive sensing structure,single mode fiber(SMF)alignment fusion to 62.5 μm stepped in-dex-multimode fiber(SI-MMF),combined with Brillouin optical time domain reflectometry(BOTDR)system,is used as a distributed sensor in the field of structural safety and health monitoring(SSHM)of large infrastructures in terms of its prominent bending resistance.The bend loss principle and influencing factors of the fiber are analyzed,and the bending resistances of different fibers are discussed on the basis of theoretical and experimental comparisons.The bend-tolerant capacity and temperature sensing characteristics of the 5 km sensing structure are measured by using the self-developed frequency-shifted local heterodyne BOTDR system.The results show that the proposed sensing struc-ture has excellent bend-tolerant capacity with a minimum bend radius and temperature measurement error of 1.25 mm and 0.69℃,respectively,which indicates that the proposed sensing structure has huge potential in the field of SSHM of large infrastructures.
文献关键词：
中图分类号：
作者姓名：
LI Yongqian;FAN Haijun;WANG Lei;ZHANG Lixin;LIU Ting
作者机构：
Department of Electronic and Communication Engineering,North China Electric Power University,Baoding 071003,China;Hebei Key Laboratory of Power Internet of Things Technology,North China Electric Power University,Baoding 071003,China;Baoding Key Laboratory of Optical Fiber Sensing and Optical Communication Technology,North China Electric Power University,Baoding 071003,China
文献出处：
引用格式：
[1]LI Yongqian;FAN Haijun;WANG Lei;ZHANG Lixin;LIU Ting-.Bend-tolerant fiber sensor based on BOTDR system)[J].光电子快报（英文版）,2022(06):343-348
A类：
Bend,SSHM
B类：
tolerant,sensor,BOTDR,system,simple,inexpensive,sensing,single,SMF,alignment,fusion,stepped,dex,multimode,SI,MMF,combined,Brillouin,optical,domain,reflectometry,used,distributed,field,structural,safety,health,monitoring,large,infrastructures,terms,its,prominent,bending,loss,principle,influencing,factors,are,analyzed,resistances,different,fibers,discussed,basis,theoretical,experimental,comparisons,capacity,temperature,characteristics,measured,by,using,self,developed,frequency,shifted,local,heterodyne,results,show,that,proposed,has,excellent,minimum,radius,measurement,error,respectively,which,indicates,huge,potential
AB值：
0.53407
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