Bitte benutzen Sie diese Referenz, um auf diese Ressource zu verweisen:
Volltext verfügbar? / Dokumentlieferung
doi:10.22028/D291-37445
Titel: | Characterization and calibration of gas sensor systems at ppb level—a versatile test gas generation system |
VerfasserIn: | Leidinger, Martin Schultealbert, Caroline Neu, Julian Schütze, Andreas Sauerwald, Tilman |
Sprache: | Englisch |
Titel: | Measurement science and technology |
Bandnummer: | 29 |
Heft: | 1 |
Verlag/Plattform: | IOP Publishing |
Erscheinungsjahr: | 2017 |
DDC-Sachgruppe: | 600 Technik |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | This article presents a test gas generation system designed to generate ppb level gas concentrations from gas cylinders. The focus is on permanent gases and volatile organic compounds (VOCs) for applications like indoor and outdoor air quality monitoring or breath analysis. In the design and the setup of the system, several issues regarding handling of trace gas concentrations have been considered, addressed and tested. This concerns not only the active fluidic components (flow controllers, valves), which have been chosen specifically for the task, but also the design of the fluidic tubing regarding dead volumes and delay times, which have been simulated for the chosen setup. Different tubing materials have been tested for their adsorption/desorption characteristics regarding naphthalene, a highly relevant gas for indoor air quality monitoring, which has generated high gas exchange times in a previous gas mixing system due to long time adsorption/desorption effects. Residual gas contaminations of the system and the selected carrier air supply have been detected and quantified using both an analytical method (GC-MS analysis according to ISO 16000-6) and a metal oxide semiconductor gas sensor, which detected a maximum contamination equivalent to 28 ppb of carbon monoxide. A measurement strategy for suppressing even this contamination has been devised, which allows the system to be used for gas sensor and gas sensor system characterization and calibration in the low ppb concentration range. |
DOI der Erstveröffentlichung: | 10.1088/1361-6501/aa91da |
URL der Erstveröffentlichung: | https://iopscience.iop.org/article/10.1088/1361-6501/aa91da |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-374457 hdl:20.500.11880/33868 http://dx.doi.org/10.22028/D291-37445 |
ISSN: | 1361-6501 0957-0233 |
Datum des Eintrags: | 29-Sep-2022 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Systems Engineering |
Professur: | NT - Prof. Dr. Andreas Schütze |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Es gibt keine Dateien zu dieser Ressource.
Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt.