Andreas Mangler Director Strategic Marketing After graduating in electrical engineering from Karlsruhe University of Applied Sciences in 1988, Andreas Mangler first worked in applied research on autonomous battery-powered robotic vehicles. His career path then led him to a leading semiconductor manufacturer in the application laboratory and in technical product marketing, among other things with the task of defining new basic architectures for analog / mixed signal ICs for the industrial market. This was followed by a move into component distribution at Rutronik, where he held various management positions in product marketing. Today, as an authorized signatory and member of the extended management board, he is responsible for strategic marketing and technical communication within Rutronik. He represents Rutronik in various trade associations and committees such as FBDI, DMASS, COG, ECIA etc. and is also entrusted with market research and prepares all relevant market figures for this purpose together with his team. Furthermore, he coordinates all research projects with the universities and the patent system within Rutronik. To date, he has helped around 50 students to achieve their academic qualifications within the framework of project, diploma, bachelor's and master's theses. His personal hobbyhorse is new research approaches in battery management systems for e-mobility for the analysis and monitoring of the health status (State-of-Health SoH) of batteries in cooperation with the Chemnitz University of Technology at the Chair of Measurement and Sensor Technology MST.

VOC Sensing With AI Signal Processing Based On Sensor Fusion

VOC sensors are used to measure the increase in concentration of volatile organic compounds. These work in part on the photoacoustic sensor principle. Here, a plate coated with substrate is heated by the use of a heat plate in the sensor. Through this process, the molecules in the air are made sensitive and react with the plate. This results in sound waves generated by thermal expansion. These measure the changes in the gases (molecules) in the air and a change in resistance results. This change in resistance allows conclusions to be drawn about individual compounds. If additional sensors are used, such as temperature, CO2 and humidity sensors, it is possible to obtain more precise measurement results. This is often referred to as sensor fusion. 

The method developed here uses the properties of the sensors used to obtain an overall sensor system. The combination of the individual sensor values results in clearly recognizable measurement patterns that can be assigned to the individual connections. With the help of these unambiguous assignments, individual compounds can be distinguished from one another. In the applied method, three different alcohols were distinguished from each other. 

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