On April 21, a department seminar was held. The presentation was given by dr inż. Grzegorz Jasiński. During the presentation, the state of research on the influence of temperature on the operation of gas sensors was presented. The temperature dependence of gas sensors’ responses is one of the factors limiting their wider use. Two solutions to this problem have been proposed. The first one, concerning semiconductor gas sensors, is based on the use of the heater properties of these sensors to stabilize the operating temperature of the sensors. Another solution using an artificial neural network has been proposed for amperometric gas sensors. The presented results are one of the stages of the research related to the initiation of the habilitation procedure.
The project is focused on the development of an inexpensive and reliable gas analyzer designed to measure the concentration of air pollutants. The proposed solution allows long-term operation without need of calibration, high accuracy and insensitivity to influencing factors. The proposed system consists of a matrix of sensors, electronic measuring and controlling modules and pattern recognition algorithms, all appropriately selected for the application of the system. The proposed solution is universal. The analyzer can work as a mobile air pollution analyzer, but also in food freshness, quality, ripeness or shelf-life monitoring and to diagnose human diseases or to identify many different pathogenic microorganisms.