Context Presentation
The measurement of indoor air quality is important for health protection against chemical and gaseous pollutants ... The indoor air can contain many pollutants such as CO, CO2, NO2 and VOCs. These pollutants exist in differents materials and products that can be used in housing (furniture, cleaners ...), but can be also comming from human activities or outside source. In this case, the detection, measurement and monitoring of these gazeuse contaminants is necessary.In view of its high performance and low cost, the innovative gas multi-sensor based on metal oxides semiconductors for analyzing and controlling indoor air quality is a good alternative to electrochemical and infrared sensors. This project is currently in progress in LAAS in collaboration with the LCC and Laplace and as part of a thesis funded by neOCampus and the Occitanie region. This thesis focuses on the characterization of multiple MOX-based gas sensors and integrates these multi-sensors in electronic card to achieve a connected object to control the indoor air quality in offices and classrooms in University Paul Sabatier in Toulouse
Figure 1 : « MOX gas Multi-sensors»
Scientific Goals
The gas multi-sensor is a microsystem composed by four sensors on a microchip, realized to detect target gases. The scientific objective of this thesis is to characterize new nanomaterials (SnO2, CuO, ZnO, WO3 ...) designed by the LCC by using an exprimental set-up and to define an operating protocol by trying differents operationg modes.
Keywords
Multi-sensors, MOS, Indoor Air Quality, Smart building, neOCampus
Contacts
aymen.sendi@laas.fr
menini@laas.fr
pierre.fau@lcc-toulouse.fr
katia.fajerwerg@univ-tlse3.fr
vincent.bley@laplace.univ-tlse.fr
