辐射亮度测量 meaning in Chinese

radiance measurement

Then the temperature and spectral emissivity of material is calculated through processing the information data . this method has been quickly developed in the latest years because of the capability to get true temperature and emissivity without auxiliary instruments or other additional information
多波长辐射测温法是在一个仪器中制成多个光谱通道,利用多个光谱的物体辐射亮度测量信息,经过数据处理得到物体的温度和材料的光谱发射率。