说明：  红外探测器是能将红外辐射能转换成电能的一种光敏器件，是红外探测系统的关键部分，常常也被称为红外传感器。
(The infrared detector is a photosensitive device able to infrared radiant energy into electrical energy is a key part of the infrared detection system, often also known as infrared sensors)