红外物理中热辐射体的光谱“蓝移”及与之有关的问题(下)  

Spectral Blue Shift of Thermal Radiator and Some Problems Related to it in Infrared Physics

作　　者：冯炽焘[1] 王忆锋[1] 

机构地区：[1]昆明物理研究所

出　　处：《红外技术》1999年第1期1-5,共5页Infrared Technology

摘　　要：对红外物理、红外技术中传统的“灰体”概念提出新的看法，发现全发射率εｈ＜１的实际发热体的热辐射，其光谱分布相对于绝对黑体，必定要向短波方向移动，亦即有“蓝移”的出现。对所提出的论断，已从多种途径作了物理和数学上的论证。最后，还对红外技术中与此有关的一些问题，提出建议与评述。The traditional concept of graybody in infrared technology is investigated and viewpoints are proposed. It appeared that the spectral distribution of thermal radiation of a real body with emissivity ε<1 , compared with that of absolute blackbody, will shift to shortwave region, i.e., the blue shift phenomena will occur. This conclusion is deduced entirely from studies on the analyses and research of radiation characteristic of snow in visible and infrared regions, the physical and mathematical analyses of thermal radiation of pure metals, and the concept study of rediation temperature, luminace temperature and color temperature. Some reviews and suggestions are given to related problem in infrared technology.

关 键 词：热辐射 灰体 发射率 光谱蓝移 红外物理 

分 类 号：TN211[电子电信—物理电子学]