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为了分析评价航空发动机燃烧状态,采用拉曼散射技术在线测量了航空涡轮发动机燃烧流场主要组分。基于发动机实验现场条件,建立了用于发动机燃烧场主要组分测量的拉曼散射实验系统,测量了发动机试验过程中流场主要组分的拉曼光谱;通过光谱计算获得了流场主要组分含量信息。实验结果表明:采用自发拉曼散射技术可以较好地完成航空涡轮发动机燃烧场主要组分摩尔分数的测量工作。
In order to analyze and evaluate the aeroengine combustion state, Raman scattering technique was used to measure the main components of the aero-turbine engine’s combustion flow field on-line. Based on the experimental conditions of the engine, a Raman scattering experiment system for the measurement of the main components of the engine combustion field was established. The Raman spectra of the main components of the flow field during the engine test were measured. The main components of the flow field Content information. The experimental results show that the measurement of the mole fraction of the main components in the combustion field of an aero-turbine engine can be accomplished satisfactorily by using spontaneous Raman scattering.