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Adv. Radio Sci., 1, 131-133, 2003
www.adv-radio-sci.net/1/131/2003/
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Telemetric surface acoustic wave sensor for humidity

M. Dierkes and U. Hilleringmann
Faculty for Computer Science, Electrical Engineering and Mathematics, Sensor Technology Department, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany

Abstract. Surface acoustic wave sensors consist of a piezoelectric substrate with metal interdigital transducers (IDT) on top. The acoustic waves are generated on the surface of the substrate by a radio wave, as it is well known in band pass filters. The devices can be used as wireless telemetric sensors for temperature and humidity, transmitting the sensed signal as a shift of the sensor’s resonance frequency.

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Citation: Dierkes, M. and Hilleringmann, U.: Telemetric surface acoustic wave sensor for humidity, Adv. Radio Sci., 1, 131-133, 2003.   Bibtex   EndNote   Reference Manager

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