| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Quantitative and Spatially Resolved Measurement of Atomic Potassium in Combustion Using Diode Laser |
| Qiang Gao1, Wu-Bin Weng2, Bo Li1**, Zhong-Shan Li1,2 |
1State Key Laboratory of Engines, Tianjin University, Tianjin 300072
2Division of Combustion Physics, Lund University, Lund SE-22100, Sweden
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Qiang Gao, Wu-Bin Weng, Bo Li et al 2018 Chin. Phys. Lett. 35 024202 |
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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.
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Received: 10 October 2017
Published: 23 January 2018
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| Fund: Supported by the National Natural Science Foundation of China under Grant Nos 91541119 and 91541203. |
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