On January 18th, the National Science and Technology Award Conference was held in Beijing. The scientific and technological achievements of the "New Distributed Optical Fiber Temperature Sensing Technology and Engineering Safety Monitoring Application Based on Raman Scattering" recommended by the General Administration won the second prize of the 2012 National Science and Technology Invention Award.
Recommend by the General Administration of Quality Supervision, Inspection and Quarantine, Professor Zhang Zaixuan, led by the China Institute of Metrology, led the project "New Raman Scattering Based Distributed Optical Fiber Temperature Sensing Technology and Engineering Safety Monitoring Application". The three key issues of distributed temperature measurement accuracy, measurement speed, and location alarm reliability are mainly invented: new distributed optical fiber Raman scattering temperature sensing system and demodulation and calibration technology; new temperature sensing pulse encoding and decoding, etc. Signal processing technology; dual-wavelength self-correction and integrated Raman amplification technology; distributed fiber Raman temperature measurement application new technology. The results of the project widely support the scientific research, production and engineering of more than 50 units such as the Public Security Fire Station and the Coal Science Institute; and have been successfully used in the safety monitoring of more than 600 major projects in more than 20 provinces, municipalities and autonomous regions including the Shanghai Yangtze River Tunnel Bridge. The direct economic benefits and socio-economic benefits are very significant.
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