用FTIR光谱仪测量排气系统中红外光谱辐射强度的方法  

Research on measurement method of mid-IR spectral radiant intensity of exhaust system with FTIR spectrometer

作　　者：罗明东[1] 吉洪湖[1] 黄伟[1] 蔡旭[1] 高潮[1] 

机构地区：[1]南京航空航天大学能源与动力学院,南京210016

出　　处：《航空动力学报》2007年第9期1423-1429,共7页Journal of Aerospace Power

摘　　要：通过理论分析及实验研究讨论了傅立叶变换红外(FTIR)光谱仪测量排气系统中红外光谱辐射强度过程中误差产生的原因,设计了一套简易有效的测量方法.用此方法测量了黑体和热喷流的光谱辐射强度.结果表明:该测量方法能够有效地获得排气系统的中红外光谱辐射强度,具有工程实用价值.The reasons of error occurred in measuring Mid-IR spectral radiant intensity of exhaust system with Fourier transform infrared （FTIR） spectrometer was discussed through theoretical analysis and experimental research. A simple and efficient measurement method was also planned to measure the spectral radiant intensity of a blackbody and a hot plume. The results show that MidIR spectral radiant intensity of exhaust system could be measured effectively by this method,thus offering a high value of engineering practicability.

关 键 词：航空、航天推进系统 傅立叶变换红外光(FTIR)谱仪 排气系统 光谱辐射强度 

分 类 号：V231.1[航空宇航科学与技术—航空宇航推进理论与工程]