二、热像仪的组成和工作原理 1.热像仪成像的物理原理热像仪是一种成像装置。大家熟悉的照相机就是一种可见光成像装置,它的成像原理是基于目标表面的反射和反射比的差异。但热像仪与此不同,它是利用目标与周围环境之间由于温度或发射率的差异所产生的热对比度进行成像。通常,飞机、坦克等军事目标与周围 Second, the composition and working principle of the thermal imaging camera 1. The physical principle of imaging thermal imaging camera is an imaging device. The familiar camera is a visible imaging device whose imaging principle is based on the difference in reflection and reflectance of the target surface. Unlike thermal imaging cameras, however, thermal imaging utilizes the thermal contrast between a target and its surroundings due to differences in temperature or emissivity. Usually, aircraft, tanks and other military targets and around