推进剂火焰烟尘对CARS测温精确度的影响  

The Influence of Propellant Flame Soot on the Precision of CARS Thermometry Measurement

作　　者：郝海霞[1] 李春喜[1] 王江宁[1] 赵凤起[1] 

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《火炸药学报》2005年第2期23-25,共3页Chinese Journal of Explosives & Propellants

摘　　要：采用透过率(激光透过率、可见光透过率)表征推进剂火焰烟尘的量,以理论计算温度作为CARS(CoherentAnti-StokesRamanSpectrometry)测温的相对标准温度,并将测得的CARS温度与热电偶温度进行了对比。通过研究CARS温度和理论计算温度的差值与透过率的相关性得到烟尘对CARS测温的影响规律:CARS测温的偏差随着推进剂火焰中烟尘量的增加而增大;推进剂火焰烟尘对CARS测温精度的影响规律基本呈线性关系。The quantity of propellant flame soot was characterized with the light transmission including the laser transmission and the visible light transmission, the computed temperature in theory was chosen as the relative standard temperature of CARS temperature, and the value of CARS temperautre was compared with that measured by a thermocouple technique. Studying the correlation between the light transmission and the difference of CARS temperature and the theoretical temperature, the conclusions were obtained that the variation of CARS temperature is augmented with the soot increase in propellant flame and that the relationship between propellant flame soot and the precision of CARS temperature measurement is basically linear.

关 键 词：应用物理学 固体推进剂 火焰烟尘 CARS测温 精确度 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]