Radio-requestable passive SAW water-content sensor

A new passive sensor for remote measurement of water content in sandy soil was designed, using a surface acoustic wave (SAW) reflective delay line. Information from this sensor can be obtained by an interrogation device via a radio link operating in the European 434-MHz industrial-scientific-medical...

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Bibliographische Detailangaben

Veröffentlicht in:	IEEE transactions on microwave theory and techniques 2001-04, Vol.49 (4), p.803-808
Hauptverfasser:	Reindl, L., Ruppel, C.C.W., Kirmayr, A., Stockhausen, N., Hilhorst, M.A., Balendonck, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic measurements Acoustic sensors Acoustic transducers Acoustic waves Delay lines Electric power lines Institute of Agricultural and Environmental Engineering Instituut voor Mechanisatie, Arbeid en Gebouwen Permittivity Questioning Radio frequency Radios Soil measurements Surface acoustic wave devices Surface acoustic waves
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