热喷流红外辐射特性的测试实验研究

以模型实验方法对热喷流的红外辐射特性进行了测试实验研究．着重介绍了以通用红外仪器组成的红外探测系统，对热喷流的红外辐射进行实验的测试方法和实测结果。得出了热喷流的红外辐射能的空间分布，热喷流的红外辐射光谱，热喷流辐射能按波段分布比例以及二元喷管与圆喷管的热喷流辐射特征比较等一系列测试结果。测试实验结果表明，测试系统和测试方法是有效的，由实测数据进行综合分析，得出了有意义的结果，并与理论分析相吻合。本文为热喷流的红外辐射特性测试，提供了一种可供借鉴的探测系统和测试技术。

The Experimental Study on the Infrared Radiation Characteristics from Hot Jet

The experimental study on infrared radiation from the hot jet by means of model test is presented. The infrared detection system of the universal infrared instruments, the testins method and experdriental results of infrared radiation from the hot jet are introduced. The space distribution of infrared radiant energy, the spectrum of infrared radiation from the hot jet, the distribution of the radiant energy of the hot jet against the wavebands and the characteristic difference of the hot jet radiation between the 2-D jet tube and the circular jet tube are obtained. It is indicated that the testing system and the method are valid and the results are in accord with the theoretical analysis. Thus the method may be provided as kind of detection system and testing technology for measurement of infrared radiation characteristic from hot jet.