近年来,随着热电材料的发展,热电型红外传感器的灵敏度和响应速度有很大提高,并达到了相当高的水平。这种传感器能在常温下使用,与其它热型传感器相比具有高速、高灵敏度的特点。因此,人们还研究了热电型红外传感器在红外领域的激光检测器上的应用。 In recent years, with the development of thermoelectric materials, the sensitivity and response speed of pyroelectric infrared sensors have greatly increased and reached a quite high level. This sensor can be used at room temperature, compared with other thermal sensors with high-speed, high sensitivity features. Therefore, people also studied the pyroelectric infrared sensor in the field of infrared laser detector application.