Optoelectronic devices for controlling the concentration of hydrocarbons in air with exponential scan

The actual problem of controlling the concentration of hydrocarbons in the air is highlighted. Structural diagrams and timing diagrams are given that explain the principle of operation of an optoelectronic device for monitoring the concentration of hydrocarbons in the air. The principle of operation of an optoelectronic device for monitoring the concentration of hydrocarbons in air with an exponential sweep is stated. A technique for calculating the optimal LED current for optoelectronic gas analysis methods is presented. It has been established that the use of a pulsed mode with an intermittent exponential sweep period in optoelectronic devices for monitoring the concentration of hydrocarbons in the air makes it possible to increase the sensitivity of gas analysis.