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热像仪是接收景物的热辐射图像并转换为可见图像的仪器。一切物体,只要它的温度高于绝对零度(零下273摄氏度),都会产生热辐射;温度不同,辐射红外线的波长和能量分布亦不同。由于目标与周围环境不同部位之间热辐射特性的差异,形成景物的热图像,经仪器接收和转换处理后,变为人眼可见的图像。热像仪的工作方式完全是被动的,它是一种新型的夜
An imager is an instrument that receives a thermal radiation image of a scene and converts it into a visible image. All objects, as long as its temperature is higher than absolute zero (minus 273 degrees Celsius), will produce thermal radiation; different temperatures, radiation infrared wavelength and energy distribution are also different. Due to the difference between the thermal radiation characteristics of different parts of the target and the surrounding environment, a thermal image of the scene is formed, which is transformed into a human-visible image after being received and converted by the instrument. The way the camera works is completely passive, it is a new type of night