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一氧化碳是一种毒性较大的气体。随着工业生产中燃料消耗和废气排放量的增加,一氧化碳对大气和环境造成了日益严重的污染,引起人们的极大关注。为了及时和准确地反映大气和环境中CO的含量,目前已经研制出了多种CO监测仪器,大致有如下几种类型。 (1)光学仪器:激光测定仪、红外测定仪、紫外测定仪等仪器。其中非色散红外法目前已趋成熟,其灵敏度可达0.1ppm。 (2)气体传感器(气敏元件):这类仪器大多制成小型便携式报警仪,不适宜作连续
Carbon monoxide is a more toxic gas. With the increase of fuel consumption and exhaust emissions in industrial production, carbon monoxide has caused increasingly serious pollution to the atmosphere and the environment, arousing great concern. In order to timely and accurately reflect the atmospheric and environmental CO content, has developed a variety of CO monitoring instruments, there are roughly the following types. (1) Optical instruments: laser detector, infrared detector, UV detector and other equipment. Non-dispersive infrared method which has matured, its sensitivity up to 0.1ppm. (2) gas sensor (gas sensor): Most of these devices made of small portable alarm, not suitable for continuous