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简述了计算红外辐射大气中透射比常用的方法,利用实验数据计算得到了大气中水汽(H2O)、CO2的光谱吸收系数,给出了水汽吸收系数与温度、相对湿度之间的关系。给出了计算高空红外辐射透射比的方法。对于斜程的透射比,将路程按照一定的精度分成小段,各小段透射比相乘可以得到总的透射比,根据高度、压强、透射比之间的关系,通过推导得到了计算斜程红外辐射透射比的简易公式,可以简化斜程透射率的计算。本方法在工程应用中具有一定的参考价值。
The common method of calculating the transmittance in the infrared radiation atmosphere is briefly described. The spectral absorption coefficients of water vapor (H2O) and CO2 in the atmosphere are calculated by experimental data. The relationship between the water vapor absorption coefficient and temperature and relative humidity is given. The method of calculating the transmittance of infrared radiation at high altitude is given. According to the relationship between height, pressure, and transmittance, we can get the formula to calculate the slope infrared radiation Simple formula of transmittance, can simplify the calculation of the slope transmittance. The method has certain reference value in engineering application.