Discrimination of gas-phase emissions from building material samples by combining two gas-sensor arrays

Abstract

International audienceAs part of the European project SYSPAQ, aiming at the conception of sensor systems to measure perceived air quality, experiments have been performed to assess the discrimination power of two gas-sensor systems as regards typical building material emissions. The first is based on individual metal oxide sensors and the second more compact constituted by a segmented sputtered layer of Pt-doped tin oxide differentiated by a temperature gradient and a thickness variation of a gas permeable SiO2 coating. The 2 systems are intended to be integrated in a larger system in the framework of the project. The objective of the preliminary experiments presented here is to check the discrimination performance of the merged system to emissions of 20 building materials