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

Volume

4

fYear

2011

Firstpage

38

Lastpage

41

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement & Instruments (ICEMI), 2011 10th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-8158-3

Type

conf

DOI

10.1109/ICEMI.2011.6037942

Filename

6037942