ＣＯ_２激光空气污染检测器最近美国威斯汀豪斯科技中心研制成一台用于空气污染物浓度遥测的有源／无源监测系统。其基本概念是吸收光谱学，采用声光可调谐滤光片的中红外和远红外激光器对大气污染物进行遥感测量。其优点是测量速度快（测量１２０种气体仅需２ｍｉｎ），... CO_2 Laser Air Pollution Detector Recently, the Westin House Technology Center in the United States has developed an active / passive monitoring system for air pollutant concentration telemetry. Its basic concept is absorption spectroscopy, remote sensing of atmospheric pollutants using mid-infrared and far-infrared lasers with acousto-optic tunable filters. The advantage is the measurement speed (measuring 120 kinds of gases only 2min), ...