热电探测器是一种比较新的器件,它们开始对红外技术产生相当的影响。它们是兼有在室温下工作和快响应的第一种远红外探测器,因此大大地提高了红外光谱技术和辐射测量技术方面的速度和灵敏度。最近已研制了适用于红外激光系统的热电探测器。其影响刚开始变得明显起来。本文首先简要介绍热电探测器,其次讨论这些器件在激光测量应用中的重要意义。根据下列两个因素来看,在野外应用中用红外探测器要比用可见激光器合意:即用可见激光器会遇到眼睛安全问题,而红外CO_2激光的效率比较高。因此研制一种实用的室 Thermoelectric detectors are newer devices that begin to have a considerable impact on infrared technology. They are both the first far infrared detector to work and respond quickly at room temperature, thereby greatly increasing the speed and sensitivity of infrared spectroscopy and radiometry techniques. Recently, thermoelectric detectors for infrared laser systems have been developed. Its impact has just become noticeable. This article starts with a brief introduction of pyroelectric detectors and secondly discusses the importance of these devices in laser measurement applications. According to the following two factors, the use of infrared detectors in field applications is better than that of visible lasers: that is to say, visible lasers encounter eye safety problems, while infrared CO_2 lasers are more efficient. So develop a practical room