四色高温测量中最佳化参数的选择

Optimum Parameters of Four-Color High Temperature Measurement

本文从黑体辐射定律出发 ,计算了物体辐射谱在四个不同波长处辐射强度的比率。结果表明 ,适当选取四个测量点的波长、四波长之差值及测量点波长带宽 ,该比率与被测辐射体温度之间有良好的单值关系 ,并可一定程度上消除物体单色辐射率对测温的影响。根据结果用图示出了各参数对四色高温测量的影响。

The ratio of the intensity of black body radiation at four wavelengths was calculated by the blackbody radiation law.The result shows that there is a good single valued relationship between the ratio and the temperature of an emission body under some given conditions,and the impact of radiant emittance on the measurement of temperature was reduced to some extent.The optimum conditions,such as measured wavelengths,wavelength distance and integrating width at every measured point were deduced.The results were diagrammed and discussed.