Journal cover Journal topic
Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
J. Sens. Sens. Syst., 6, 87-96, 2017
http://www.j-sens-sens-syst.net/6/87/2017/
doi:10.5194/jsss-6-87-2017
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Regular research article
13 Feb 2017
The concept of thin film bulk acoustic resonators as selective CO2 gas sensors
Romy Hoffmann et al.

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Short summary
Carbon dioxide is a main greenhouse gas and a gas that well-represents air quality. Therefore, it is important to monitor the CO2 concentration in air. Creating an affordable and reliable CO2 sensor is the purpose of this paper. Using a mass-sensitive acoustic sensor (FBAR) we can detect increasing CO2 concentration by a mass increase on the sensor surface. As humidity changes often interfere with these signals the selection of CO2 over humidity changes is another topic addressed in this paper.
Carbon dioxide is a main greenhouse gas and a gas that well-represents air quality. Therefore,...
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