为参与媒介盖住的表面的放射计温的一个温度测量模型被开发。模型基于参与放射高温计的媒介和原则的放射热转移,并且由分离纵标方法的不可分的明确的表达解决了在上光谱 waveband。Raytek MR1SB 一 / 二颜色高温计的显示的温度上的水薄雾的影响被讨论。Mie 理论被用来计算水薄雾的放射的性质。为了验证模型,,一个实验室温度测量实验被执行。放射计温的温度对敏感的结果表演光谱高温计的反应波长,和高温计的模仿的温度与试验性的大小同意合适的波长很好。模仿的温度是比为一个颜色高温计的表面的真实温度低的,并且它能比为有参与媒介的影响的二颜色的高温计的真实的更高或低。关键词参与媒介 - 放射计温 - 表面温度测量 - 分离纵标方法 CLC 数字 O551.2
A temperature measurement model of radiation thermometry for the surface covered by participating media was developed. The model was based on the radiation heat transfer of participating media and principles of radiation pyrometers, and solved by integral formulation of discrete ordinate method on spectral waveband. The influence of water mist on the indicated temperature of Raytek MR1SB one/two color pyrometer was discussed. Mie theory was used to calculate the radiative properties of water mist. In order to verify the model, a laboratory temperature measurement experiment was executed. The result shows that temperature of radiation thermometry is sensitive to the spectral response wavelength of pyrometer, and the simulated temperature of pyrometer agrees well with the experimental measurements on a suitable wavelength. The simulated temperature was lower than the real temperature of surface for one-color pyrometer, and it could be higher or lower than the real one for two-color pyrometer with the influence of participating media.