| Literature DB >> 31389228 |
Carsten Jaeschke1,2, Johannes Glöckler1, Oussama El Azizi3, Oriol Gonzalez2, Marta Padilla2, Jan Mitrovics2, Boris Mizaikoff1.
Abstract
An innovative concept for an electronic nose (eNose) system based on a unique combination of analog and digital sensors for online monitoring is presented. The developed system consists of small sensing arrays of commercially available semiconducting metal oxide (MOX) gas sensors in a compact, modular, low sample volume, temperature-controlled sensing chamber. The sensing chamber comprises three compartments, each of which may contain several analog and/or digital MOX sensors. Additional sensors within the digital compartment allow for pressure, humidity, and temperature measurements. The presented prototype eNose system comprises one compartment with 8 analog MOX sensors and two compartments with 10 digital sensors each and was explicitly tested here for the discrimination between midrange (3-18 ppm) concentrations of ethanol and acetone at dry and moderately humid conditions.Entities:
Keywords: VOC; analog; digital; eNose; electronic nose; low-volume sensing chamber; metal oxide (MOX) sensors; sensing array
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Year: 2019 PMID： 31389228 DOI： 10.1021/acssensors.9b01244
Source DB: PubMed Journal: ACS Sens ISSN： 2379-3694 Impact factor: 7.711