OTDR

作品数:720被引量:1347H指数:18
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相关机构:电子科技大学北京邮电大学北京交通大学华北电力大学更多>>
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Distributed Fiber Birefringence Measurement Using Pulse-CompressionФ-OTDR被引量:1
《Photonic Sensors》2021年第4期402-410,共9页Yongxiang CHEN Yun FU Ji XIONG Zinan WANG 
In this paper,a novel birefringence measurement method through the Rayleigh backscattered lightwave within single-mode fiber is proposed,using a single chirped-pulse with arbitrary state of polarization.Numerical anal...
关键词:BIREFRINGENCE Rayleigh scattering PULSE-COMPRESSION phase-sensitive optical time-domain reflectometiy coherent detection polarization-diverse receiver 
Erratum to: Distributed Fiber Birefringence Measurement Using Pulse-Compression Ф-OTDR
《Photonic Sensors》2021年第4期472-472,共1页Yongxiang CHEN Yun FU Ji XIONG Zinan WANG 
Erratum to:Distributed Fiber Birefringence Measurement Using Pulse-Compression Ф-OTDR The original article unfortunately contained a mistake.Figures 4 and 8 are not clear.The figures in original article and in correc...
关键词:OTDR PULSE FIBER 
Curvature Sensor Based on a Long-Period Grating in a Fiber Ring Resonator Interrogated by an OTDR被引量:1
《Photonic Sensors》2020年第1期1-6,共6页Regina MAGALHAES Susana SILVA Orlando FRAZAO 
This work is financed by National Funds through the Portuguese funding agency,FCT-“Fundação para a Ciência e a Tecnologia”under Grant No.UID/EEA/50014/2019.
The proposed technique demonstrates a fiber ring resonator interrogated by an optical time domain reflectometer(OTDR),for intensity sensing.By using this methodology,a cavity round trip time of 2.85ms was obtained.For...
关键词:Cavity ring-down CURVATURE fiber ring resonator long period grating optical fiber sensors OTDR 
High-Speed Mach-Zehnder-OTDR Distributed Optical Fiber Vibration Sensor Using Medium-Coherence Laser被引量:5
《Photonic Sensors》2018年第3期203-212,共10页Yuheng TONG Zhengying LI Jiaqi WANG Honghai WANG Haihu YU 
This work was supported in part by the National Natural Science Foundation of China (Gram No. 61735031), Natural Science Foundation of Hubei Province of China (Grant No. 2018CFA056), and the Excellent Dissertation Cultivation Funds of Wuhan University of Technology (Grant No. 2017-YS-057).
This article presents a high-speed distributed vibration sensing based on Mach-Zehnder-OTDR (optical time-domain reflectometry). Ultra-weak fiber Bragg gratings (UWFBG), whose backward light intensity is 2-4 order...
关键词:HIGH-SPEED Mach-Zehnder-OTDR ultra-weak fiber Bragg grating array medium-coherence laser optical fiber vibration sensing 
Feature Extraction and Identification in Distributed Optical-Fiber Vibration Sensing System for Oil Pipeline Safety Monitoring被引量:21
《Photonic Sensors》2017年第4期305-310,共6页Huijuan WU Ya QIAN Wei ZHANG Chenghao TANG 
The authors gratefully acknowledge the supports provided for this research by Youth Foundation (Grant No. 61301275), Major Instrument Special Program (Grant No. 41527805), the Major Program (Grant No. 61290312) of the National Science Foundation of China (NSFC), and the fund of State Grid Corporation of China: Research on distributed multi-parameter sensing and measurement control technology for electric power optical fiber communication networks (Grant No. 5455HT160014). This work is also supported by Program for Changjiang Scholars and Innovative Research Team in University (PCSIRT, IRT1218) and the 111 Project (B14039).
High sensitivity of a distributed optical-fiber vibration sensing (DOVS) system based on the phase-sensitivity optical time domain reflectometry (Ф-OTDR) technology also brings in high nuisance alarm rates (NARs...
关键词:Distributed optical-fiber vibration sensing Ф-OTDR pattem recognition multi-scale analysis 
Study of Ф-OTDR Stability for Dynamic Strain Measurement in Piezoelectric Vibration
《Photonic Sensors》2016年第3期199-208,共10页Meiqi REN Ping LU Liang CHEN Xiaoyi BAO 
In a phase-sensitive optical-time domain reflectometry (Ф-OTDR) system, the challenge for dynamic strain measurement lies in large intensity fluctuations from trace to trace. The intensity fluctuation caused by sto...
关键词:Optical fiber sensors phase-sensitive optical time domain reflectometry (OTDR) VIBRATION 
A Hybrid φ/B-OTDR for Simultaneous Vibration and Strain Measurement被引量:5
《Photonic Sensors》2016年第2期121-126,共6页Fei PENG Xuli CAO 
This work is supported by the National Nature Science Foundation of China (NSFC) under grants (61290312 and 61205048), the PCSIRT (IRT1218), and the 111 Project (B14039).
A hybrid phase-sensitive optical time domain reflectometry (φ-OTDR) and Brillouin optical time domain reflectometry (B-OTDR) system which can realize simultaneous measurement of both dynamic vibration and static ...
关键词:Optical fiber sensor Rayleigh scattering Brillouin scattering VIBRATION STRAIN 
Long-Range Displacement Sensor Based on SMS Fiber Structure and OTDR被引量:6
《Photonic Sensors》2015年第2期166-171,共6页A. ARIFIN A. M. HATTA SEKARTEDJO M. S. MUNTINI A. RUBIYANTO 
This paper presents a long-range displacement measurement method by using a single- multi-single mode (SMS) fiber structure, attached to a flexible plate between two permanent poles and the optical time domain refle...
关键词:Displacement sensor SMS fiber structure OTDR 
Fiber Cavity Ring-Down Using an Optical Time-Domain Reflectometer
《Photonic Sensors》2014年第4期295-299,共5页D. J. PASSOS S. O. SILVA J. R. A. FERNANDES M. B. MARQUES O. FRAZAO 
This work presented a demonstration of the potential for a fiber based cavity ring-down (CRD) using an optical time-domain reflectometer (OTDR). The OTDR was used to send the impulses down into about 20km of a sta...
关键词:Optical fiber sensors cavity ring-down OTDR 
A Fresnel Reflection-Based Optical Fiber Sensor System for Remote Refractive Index Measurement Using an OTDR被引量:4
《Photonic Sensors》2014年第1期48-52,共5页Jianying Yuan Chunliu Zhao Manping Ye Juan Kang Zaixuan Zhang Shangzhong Jin 
In this paper, we propose a Fresnel reflection-based optical fiber sensor system for remote refractive index measurement using the optical time domain reflectometry technique as an interrogation method. The surroundin...
关键词:Fresnel reflection optical fiber sensor remote measurement OTDR 
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