摘要
从黑体辐射定律出发,计算了黑体辐射谱两个波长处辐射强度的比率。计算结果表明,适当选择测量点波长、两波长之差值以及测量点波长带宽,可使该比率与被测辐射体温度之间有良好的单值关系。根据计算结果用图示出这些参数的选取对双色高温测量的重要影响。
A ratio of the intensities of black-body radiations at two wavelengths has been calculated based on the Planck radiation law.The result shows that there is a good unique function relationship between the ratio and the temperature of an emission body under some given conditions.The optimum conditions such as measured wavelengths,wavelength differences between two measured points and wavelength bandwidth at each measured point have been deduced.The results have been shown in figures and discussed.
出处
《计量学报》
CSCD
1991年第4期275-279,共5页
Acta Metrologica Sinica
