1.前言用具有热电效应的薄膜作为靶的光导摄象管,即所谓热电视象管,可将对应物体温度的红外辐射转换成图象。在使用上,它比采用冷却型探测器的热象装置简单,在工业上期待着得到广泛应用。热电视象管是将物体发射出来的红外线,用透镜使其成象于靶面产生温度变化的分布,由热电效应产生极 1. Introduction The use of a thin film with a pyroelectric effect as a target photoconductive tube, the so-called thermoelectric tube, converts the infrared radiation corresponding to the object temperature into an image. In use, it is simpler than the thermal imaging device with a cooled detector and is expected to find wide application in industry. Thermoelectric TV tube is the infrared emission from the object, with the lens to image the temperature change in the distribution of the target surface, generated by the pyroelectric effect pole