Quantitative and Spatially Resolved Measurement of Atomic Potassium in Combustion Using Diode Laser
Qiang Gao1 , Wu-Bin Weng2 , Bo Li1** , Zhong-Shan Li1,2
1 State Key Laboratory of Engines, Tianjin University, Tianjin 3000722 Division of Combustion Physics, Lund University, Lund SE-22100, Sweden
Abstract ：A compact optical setup for quantitative and spatially resolved measurement of atomic alkali concentration in combustion is demonstrated. Tunable diode laser absorption spectroscopy and laser-induced fluorescence are combined using a single continuous wave diode laser to measure the line-integration concentration and the relative distribution simultaneously, thereby obtaining the absolute concentration distribution along the laser beam. The results indicate the good performance of this method for one-dimensional quantitative measurement.
收稿日期: 2017-10-10
出版日期: 2018-01-23
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2018, Vol. 35 
