Measurement of Water Temperature using Planer Laser Induced Fluorescence
The technique of planer laser induced fluorescence (PLIF) allows a real-time nonintrusive visualization of the water temperature by using the fluorescence dye, Rhodamine B, as the temperature indicator. Experimental results show that Rhodamine B, dissolved in water and excited by a 532-nm semiconductor laser, yields high temperature sensitive fluorescence whose intensity decreases rapidly due to the increase of temperature. In order to eliminate the effects of fluctuation of illuminating light intensity and dye concentration, the ratio of the total fluorescence intensities at every temperature to that at 293K was calculated respectively. After three-order fitting this relation was used to measure the water temperature from 293K to 363K with an uncertainty of± 1K.
Planer Laser Induced Fluorescence Temperature Measurement Water Rhodamine B
C.Y.Xu X.S.Cai G.L.Liu F.N.Yan
College of Science, University of Shanghai for Science and Technology, China College of Power Engineering, University of Shanghai for Science and Technology, China
国际会议
西安
英文
189-192
2009-07-11（万方平台首次上网日期，不代表论文的发表时间）