Optical fiber temperature Measurement Technique based on Fluorescence Mechanism
A kind of fluorescence optic-fiber temperature sensor is studied.It used sapphire fiber thermal probe,making use of the method that FFT transformation to carry on a processing to the fluorescence signal.Among the detection range from 0 to 450℃,the thermometer has an average temperature resolution of 0.4℃.The experimental results show that this temperature measuring system can effectively decrease the influence of instability of light source and intensity variation in measuring channel on measurement results.The system has the advantage of high accuracy,very high temperature resolution,good dynamic response and immunity to the electro-magnetic interference.So it may be used in microwave treatment and thermal monitoring of Medium Voltage Substations.
fluorescence thermometer sapphire optical fiber fast Fourier transform
Yutian Wang Xiaoxu Bo Jin Zhao
Yanshan University, Hebei Key Laboratory of Measurement Technology and Instrumentation,Qinhuangdao 066004, China
国际会议
重庆
英文
854-858
2010-12-11（万方平台首次上网日期，不代表论文的发表时间）