Development of Distributed Vibration Sensing System Based on Polarization Optical Time Domain Reflectometry

2012 ◽  
Vol 10 (7) ◽  
pp. 1534-1538 ◽  
Author(s):  
Mengmeng Chen ◽  
Xuping Zhang ◽  
Feng Wang ◽  
Xiangchuan Wang
Keyword(s):  
Time Domain ◽  
Time Domain Reflectometry ◽  
Sensing System ◽  
Optical Time Domain Reflectometry ◽  
Vibration Sensing ◽  
Optical Time

scholarly journals Interferometric distributed sensing system with phase optical time-domain reflectometry

2016 ◽  
Vol 7 (2) ◽  
pp. 157-162 ◽  
Author(s):  
Chen Wang ◽  
Ying Shang ◽  
Xiaohui Liu ◽  
Chang Wang ◽  
Hongzhong Wang ◽  
...  
Keyword(s):  
Time Domain ◽  
Time Domain Reflectometry ◽  
Distributed Sensing ◽  
Sensing System ◽  
Optical Time Domain Reflectometry ◽  
Optical Time

scholarly journals Fiber Optic Based Distributed Mechanical Vibration Sensing

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4779
Author(s):  
Vít Novotný ◽  
Petr Sysel ◽  
Aleš Prokeš ◽  
Pavel Hanák ◽  
Karel Slavíček ◽  
...  
Keyword(s):  
Mechanical Vibration ◽  
Single Mode ◽  
Time Domain Reflectometry ◽  
Sensing System ◽  
Optical Time Domain Reflectometry ◽  
Measurement Results ◽  
Vibration Sensing ◽  
Phase Sensitive ◽  
Optical Time ◽  
Initial Measurement

The distributed long-range sensing system, using the standard telecommunication single-mode optical fiber for the distributed sensing of mechanical vibrations, is described. Various events generating vibrations, such as a walking or running person, moving car, train, and many other vibration sources, can be detected, localized, and classified. The sensor is based on phase-sensitive optical time-domain reflectometry (ϕ-OTDR). Related sensing system components were designed and constructed, and the system was tested both in the laboratory and in the real deployment, with an 88 km telecom optical link, and the results are presented in this paper. A two-fiber sensor unit, with a double-sensing range was also designed, and its scheme is described. The unit was constructed and the initial measurement results are presented.

Design of Dual Lasers Driving Circuits in Optical Time Domain Reflectometry-Fiber Bragg Grating Sensing System

2012 ◽  
Vol 39 (4) ◽  
pp. 0405002
Author(s):  
章鹏博 Zhang Pengbo ◽  
胡辽林 Hu Liaolin ◽  
华灯鑫 Hua Dengxin ◽  
巩鑫 Gong Xin
Keyword(s):  
Fiber Bragg Grating ◽  
Time Domain ◽  
Time Domain Reflectometry ◽  
Bragg Grating ◽  
Sensing System ◽  
Optical Time Domain Reflectometry ◽  
Optical Time
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