An opto-chemical CO2 sensor system based on new Sol-Gel Films

Auteurs

A. T. Winzer, N. Thronicke, S. Nieland, T. Ortlepp, G. Voirin, E. Scolan, and S. Welsch

Référence

in International Conference and Exhibition on Integration Issues of Miniaturized Systems, SSI 2017, 8-9 March, Ireland, pp. 328-335, 2017

Description

We propose an advanced chemo-optoelectronic sensor for gaseous CO2 measurement to be used in the building automation. The measurement principle is based on the optical monitoring of the color change of a dye. The sensor is accurate, reliable, and producible at low cost. It consists of a hierarchically structured CO2 sensing active layer, a micro-optical sensor receiver unit, a lock-in based and a microprocessor based electronics. The system is modular for easy adaption to different measurement ranges or accuracy levels.