Selecting and implementing atmospheric monitoring devices to detect specific dangerous gases requires careful consideration of several criteria to ensure accurate and reliable detection. The first and most crucial criterion is the target gas or gases. Different gases require different sensing technologies. For example, carbon monoxide (CO) is commonly detected using electrochemical sensors, while methane (CH4) is typically detected using catalytic or infrared sensors. Electrochemical sensors measure the current produced by a chemical reaction between the gas and an electrode. Catalytic sensors measure the heat generated by the combustion of the gas on a catalytic surface. Infrared sensors measure the absorption of infrared light by the gas. The selection of the sensor technology must be appropriate for the specific gas being monitored. The detection range and resolution are also important criteria. The detection range refers to the concentration range that the device can accurately measure. The resolution refer....
Log in to view the answer
