低发射率材料红外隐身效果研究

Study on Infrared Stealth Effect of Low Emissivity Materials

阐述目标红外辐射产生机理,论述低发射率材料红外隐身原理,从低发射率材料具有较高反射率与目标表面与外部辐射换热两个角度对其红外隐身效果进行分析和研究。结果表明,低发射率材料能够减小目标表面昼夜温度差值,8~14μm波段内太阳辐射减弱,低发射率材料抑制红外辐射效果显著,由于低发射率材料不具备存储热量的功能,夜间目标红外辐射高于周围环境。

The mechanism of infrared radiation generation of the target is elaborated,and the principle of infrared stealth of low-emissivity materials is discussed.The infrared stealth effect of low-emissivity materials is analyzed and researched from the perspectives of high reflectivity of low-emissivity materials and heat exchange between the target surface and external radiation.The results show that Low-emissivity materials can reduce the temperature difference between day and night on the target surface.Solar radiation is weakened in the 8μm-14μm band,and low-emissivity materials have a significant effect on inhibiting infrared radiation;because low-emissivity materials do not have the function of storing heat,the target’s infrared radiation at night Higher than the surrounding environment.