本文报导松下公司在红外热电探测器研制工作上的一些进展。在研究过的几种材料中,PbTiO_3元件的探测度D~*(500°K、20赫、1赫)达到了1.7×10~9厘米·赫~(1/2)/瓦。但在高频下使用,要稍微低些。由于这个数值主要是以前置放大回路的噪声分析中推论出来的,因此,若降低场效应晶体管噪声,探测器的性能还可提高些。 This article reports Panasonic's progress in the development of infrared thermoelectric detectors. Among the several materials studied, the detection of PbTiO_3 has reached 1.7 × 10 ~ 9cmH ~ (1/2) / W at D ~ * (500 ° K, 20 Hz, 1 Hz). However, use at high frequencies, to be slightly lower. Since this value is mainly deduced from the noise analysis of the preamplifier circuit, the performance of the detector can be improved if the FET noise is reduced.