CARS diagnostics of combustion
CARS diagnostics of combustion
复制标题
CARS 燃烧诊断
DOI：
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
J. Taran
中科院分区：
文献类型：
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作者：
B. Attal;M. Péalat;J. Taran
汽车正在开发用于实际的火焰温度和浓度测量。目前的研究工作包括测试高性能的常规汽车光谱仪和研究电子共振增强以提高检测灵敏度。介绍了常规汽车谱仪。它允许进行具有背景消除的BOXCARS测量。光谱分辨率在窄带模式下可调为0.7或0.07 cm ~*，在宽带模式下可调为0.7 cm ~*。文中给出了用该仪器在模拟涡轮发动机燃烧室上得到的典型结果。一般检测灵敏度为100-1000 ppm。利用共振增强汽车，预期增益在100-1000的量级，如最近在I2蒸气中所证明的。
CARS is being developed for practical temperature and concentration measurement in flames. Current research effort includes the testing of a high-performance conventional CARS spectrometer and the study of electronic resonance enhancement for improved detection sensitivities. The conventional CARS spectrometer is described. It allows BOXCARS measurements with background cancellation to be made. The spectral resolution is adjusted at 0.7 or 0.07 cm ~* in the narrow-band mode, and 0.7 cm ~ in the broadband mode with an OMA for single-shot spectroscopy. Typical results obtained with this instrument on a simulated turbomachine combustor are presented. The detectivity is 100-1000 ppm in general. With resonance-enhanced CARS, one expects gains on the order of 100-1000, as demonstrated recently in I2 vapor.