Considers the reasons for the operational use of equipment in a continuous or kvazybezperervnomu mode to control the gas environment and determine its physical parameters (temperature, pressure, velocity of circulation, dust content, etc.). The essence and characteristics of the gas composition sensors and electrochemical sensors based on solid electrolytes. The characteristic species and the principle of gas analyzers. The basic models and methods of assessment of their selectivity.
p'yezorezonansni sensors, sensor, gas composition, gas analyzer