Journal ArticleDOI
Combined seebeck and resistive sno2 gas sensors, a new selective device
TLDR
In this article, simultaneous measurements of electrical resistance R and Seebeck e.m.f. Vs of thick film SnO2 gas sensors were performed in air containing different concentrations pi of reducing gas (ethanol vapours, CO, CH4, C2H6 were successively used).Abstract:
Simultaneous measurements of electrical resistance R and Seebeck e.m.f. Vs of thick film SnO2 gas sensors were performed in air containing different concentrations pi of reducing gas (ethanol vapours, CO, CH4, C2H6 were successively used). The graphical representations of the Vs versus ln h values both for the identification of the reducing gas (selectivity) and for the determination of gas concentration.read more
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Micromachined metal oxide gas sensors: opportunities to improve sensor performance
TL;DR: In this article, a review of the design principles and technology involved in the fabrication of micromachined substrates examining thermal and mechanical aspects is presented, and various ways for extracting the information are presented with respect to the improvement of sensor performance brought by this new approach.
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Multivariable Sensors for Ubiquitous Monitoring of Gases in the Era of Internet of Things and Industrial Internet
TL;DR: Analysis of development of new generation of gas sensors based on the multivariable response principles is provided with a perspective for future needs in fundamental and applied aspects of gas sensing and with the 2025 roadmap for ubiquitous gas monitoring.
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Solid State Gas Sensor Research in Germany – a Status Report
TL;DR: This status report overviews activities of the German gas sensor research community and highlights recent progress in the field of potentiometric, amperometric, conductometric, impedimetric, and field effect-based gas sensors.
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Review of recent trends in gas sensing technologies and their miniaturization potential
TL;DR: In this paper, the authors give an overview about the state of the art and novel technologies used in gas sensing and discuss the miniaturization potential of some of these technologies in a comparative way.
Journal ArticleDOI
Direct thermoelectric gas sensors: Design aspects and first gas sensors
Frank Rettig,Ralf Moos +1 more
TL;DR: In this article, a direct thermoelectric gas sensor with a sinusoidally varying temperature difference was applied on the sensitive film with a modulation heater to detect accurately the Seebeck coefficient of the material.