Articles | Volume 15, issue 9
https://doi.org/10.5194/amt-15-2807-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-2807-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
09 May 2022
Research article |
| 09 May 2022
| 09 May 2022
Metrology for low-cost CO2 sensors applications: the case of a steady-state through-flow (SS-TF) chamber for CO2 fluxes observations
Institut de Tècniques Energètiques (INTE), Universitat Politècnica de Catalunya, Barcelona, Spain
Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, Terrassa, Spain
Josep-Anton Morguí
Evolutionnary Biology, Ecology and Environmental Science Department, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
Armand Kamnang
Evolutionnary Biology, Ecology and Environmental Science Department, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
Lídia Cañas
AIRLAB, Climate and Health Program (CLIMA), ISGlobal, Barcelona, Spain
Arturo Vargas
Institut de Tècniques Energètiques (INTE), Universitat Politècnica de Catalunya, Barcelona, Spain
Claudia Grossi
Institut de Tècniques Energètiques (INTE), Universitat Politècnica de Catalunya, Barcelona, Spain
Departament de Física, Universitat Politècnica de Catalunya, Barcelona, Spain
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Short summary
Low-cost air enquirer kits, including CO2 and environmental parameter sensors, have been designed, built, and tested in a new steady-state through-flow chamber for simultaneous measurements of CO2 fluxes in soil and CO2 concentrations in air. A CO2 calibration and multiparametric fitting reduced the total uncertainty of CO2 concentration by 90 %. This system allows continuous measurement of CO2 fluxes and CO2 ambient air, with low cost (EUR 1200), low energy demand (<5 W), and low maintenance.
Low-cost air enquirer kits, including CO2 and environmental parameter sensors, have been...
