RESEARCH OF DISTRIBUTED OPTICAL FIBER TEMPERATURE SENSOR (DTS) SYSTEM WITH OPTICAL SWITCH
Jianfeng Wang, Yongxing Jin, Zaixuan Zhang, Changyu Shen, Yanqing Qiu
Abstract:
Working principle, engineering application and development trends of distributed optical fiber temperature sensor (DTS) system is introduced briefly in his paper. Factors determining length of sensing optical fiber is researched in particularly. In distributed optical fiber temperature sensor system, length of sensing optical fiber is determined by power of laser pulse, loss coefficient and signal to noise ratio (SNR) of the system. Using optical switch can extend sensing length of the system. A driver interface based on MCU chip for a multi-mode prism 1×2 optical switch is designed. DTS system controls the optical switch by sending instruction to RS232 serial interface. Test results shows that the sensing length can be extended to double by embedding 1 × 2 optical switch.
Keywords:
Spontaneous Raman scattering, Distributed optical fiber temperature sensor, Driver interface, Optical switch
Download:
IMEKO-TC2-2010-26.doc
DOI:
-
Event details
IMEKO TC:
TC2
Event name:
TC2 Symposium 2010
Title:
19th Symposium on Photonic Measurements
Place:
Hangzhou, CHINA
Time:
11 September 2010 - 13 September 2010
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