Title :
Wirelessly interrogable acoustic sensors
Author :
Seifert, F. ; Pohl, A. ; Steindl, R. ; Reindl, L. ; Vellekoop, M.J. ; Jakoby, B.
Author_Institution :
Tech. Univ. Wien, Austria
Abstract :
A survey is given on wirelessly interrogable passive surface acoustic wave (SAW) sensors. Three types of SAW devices are discussed and classified as to their function in remote sensing of measurands (e.g. temperature, mechanical strain, stress ec.): Type I: transit time sensors, type II: SAW delay lines for wireless evaluation of remote conventional sensors and type III: SAW resonators. Efficient and successfully proven methods of wireless interrogation and evaluation are presented and some applications briefly mentioned
Keywords :
surface acoustic wave delay lines; surface acoustic wave resonators; surface acoustic wave sensors; SAW delay lines; SAW resonators; passive surface acoustic wave sensors; remote conventional sensors; remote sensing; transit time sensors; wirelessly interrogable acoustic sensors; Acoustic measurements; Acoustic sensors; Acoustic waves; Mechanical sensors; Remote sensing; Strain measurement; Surface acoustic wave devices; Surface acoustic waves; Temperature sensors; Wireless sensor networks;
Conference_Titel :
Frequency and Time Forum, 1999 and the IEEE International Frequency Control Symposium, 1999., Proceedings of the 1999 Joint Meeting of the European
Conference_Location :
Besancon
Print_ISBN :
0-7803-5400-1
DOI :
10.1109/FREQ.1999.841477
