Principles and application of distributed optical fiber temperature sensor (DTS) are introduced. Applications of DTS in
power system in Shanghai World Expo project and Shanghai Caojing thermal power plant are studied as examples.
Problems and solutions are researched. Test results of the two examples engineering project are listed.
A distributed temperature sensor (DTS) system with a sensing distance of 4 km was developed for applications
in tunnel temperature measurement and fire alarm. Characteristics of DTS and experiment results are introduced. The results show that DTS system can play an important role in tunnel fire alarm.
Distributed optical fiber temperature sensor (DTS) for underground coal gasification (UCG) system using is studied in
this paper. By measuring temperature of reacting mine gasification process can be controlled. Calibration of DTS and
experiment result are introduced. The results show that, DTS can play an important role in UCG systems.
KEYWORDS: Optical fibers, Optical sensing, Raman scattering, Photons, Temperature metrology, Raman spectroscopy, Safety, Signal processing, Temperature sensors, Sensing systems
Distributed optical fiber temperature sensor (DTS) system is widely used in temperature measuring projects. In this
paper, applications of DTS system in temperature measuring and leakage detecting of dam are studied. Problems and solutions of using DTS system in dam are researched. Two typical engineering applications in the Three Gorges dam and Xin'anjiang hydropower station are studied. Test results are listed in the end.
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