摘要
设计了一个测量热辐射多个基本特性的综合实验平台,定量研究了辐射反平方定律、斯特藩-玻尔兹曼辐射定律、兰贝特余弦定律,且得到的数据与理论符合得较好,同时利用该平台还定性研究了基尔霍夫定律,揭示了物体的辐射能力与吸收能力的正相关性.该平台具有功能多、成本低、操作简便等优点,可引入大学物理实验教学中.
An experimental platform about thermal radiation is designed in this paper. Three basic principles of thermal radiation, including inverse square law of radiation, Stefan-Boltzmann radiation law and Lambert cosine law, are studied quantitatively. The results obtained agree with the theory well. The Kirchhoffs law is also studied qualitatively and it demonstrates the positive relativity between radiating capacity and absorbing capacity.
出处
《大学物理》
北大核心
2012年第9期57-60,共4页
College Physics
基金
国家自然科学基金资助项目(10975014)
关键词
热辐射
出射度
辐射定律
红外测温
thermal radiation
radiant exit
radiation law
infrared temperature measurement
