Title :
Development of optical fiber strain monitoring system based on BOTDR
Author :
Xiaofei, Zhang ; Wenjie, Hao ; Qing, Zhang ; Yanxin, Shi ; Xianwei, Meng ; Yongwen, Han
Author_Institution :
Centre for Hydrogeology & Environ. Geol., CGS, Baoding, China
Abstract :
In order to develop an optical fiber strain monitoring instrument which can be used in geological disaster monitoring, we studied strain measurement principle of BOTDR, then designed the hardware using microwave electro-optical modulation technology and optical coherence monitoring method and wrote the software, finally, we have successfully developed the distributed optical fiber strain monitoring system. Then we made a simulation experiment and a field application experiment and the results indicate that the monitoring system can be applied to the actual geological disaster monitoring.
Keywords :
electro-optical modulation; fibre optic sensors; strain measurement; strain sensors; time-domain reflectometry; BOTDR; Brillouin optical time-domain reflectometer; geological disaster monitoring; microwave electro-optical modulation technology; optical coherence monitoring method; optical fiber strain monitoring instrument system; Integrated optics; Monitoring; Optical buffering; Optical fibers; Optical modulation; Optical variables measurement; BOTDR; distributed; strain monitoring;
Conference_Titel :
Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8158-3
DOI :
10.1109/ICEMI.2011.6037942
