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仪器网/ 行业应用/ 解决方案/ 气流中测量局部构成的二维激光诱导等离子谱的应用

气流中测量局部构成的二维激光诱导等离子谱的应用

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In the present investigation, Laser Induced Plasma Spectroscopy (LIPS) is performed with an original two dimensional approach. The spectrometer usually used to record light emission from plasma and compare well-chosen peak intensity is here replaced by two intensified cameras equipped with band pass filters. The ratio of emission intensities recorded with the two cameras at two different wavelengths provides the concentration of identified species in given mixtures. This technique gives information on mixture composition on the whole plasma volume increasing both the spatial resolution and the probe volume of the measurement. Tests are performed on coaxial jets of air and nitrogen showing the ability of the method to catch the mixing layer developed at the nozzle exit. 丹迪粒子图像测速仪 Dantec PIV
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