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Proceedings Paper

Autonomous remote sensing with SAW devices
Author(s): Ovidiu Iancu; Paul Schiopu; Adrian Manea; Ionica Cristea; Neculai Grosu
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Paper Abstract

In so rapidly growing sensing technology, Autonomous Surface Acoustic Waves (SAW) based sensors, offer high flexibility for modern identification/sensing systems, and represent a new perspective for remote monitoring and control. This paper gives a presentation of operating principles of wireless SAW sensors with separation in frequency (frequency domain division-FDD) and separation in time (time domain division-TDD). The design of interdigitated transducers (IDT), and reflectors on the different types of substrate materials as piezo crystals LiNbO3, LiTaO3 or quartz in connection with application domains is presented. A comparison between Time Domain Sampling-TDS and Frequency Domain Sampling-FDS principles of transmitter and receiver, gives evidence of their advantages and disadvantages. A part of the paper dealt with the measurement results.

Paper Details

Date Published: 8 May 2007
PDF: 8 pages
Proc. SPIE 6635, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III, 66350X (8 May 2007); doi: 10.1117/12.742073
Show Author Affiliations
Ovidiu Iancu, Politehnica Univ. of Bucuresti (Romania)
Paul Schiopu, Politehnica Univ. of Bucuresti (Romania)
Adrian Manea, Politehnica Univ. of Bucuresti (Romania)
Ionica Cristea, Politehnica Univ. of Bucuresti (Romania)
Neculai Grosu, Politehnica Univ. of Bucuresti (Romania)

Published in SPIE Proceedings Vol. 6635:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies III
Ovidiu Iancu; Adrian Manea; Paul Schiopu, Editor(s)

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