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Radiofrequency Transceiver for Probing SAW Sensors and Communicating Through a Wireless Sensor Network

Authors:
Christophe Droit
Jean-Michel Friedt
Gwenhael Goavec-Merou
Gilles Martin
Sylvain Ballandras
Karla Breschi
Julien Bernard
Herve Guyennet

Keywords: transceiver; radio communication; 434~MHz ISM band; SAW resonator; temperature sensor.

Abstract:
A radiofrequency transceiver is used for the dual purpose of probing surface acoustic wave resonator sensors and communicating the resulting measurements through a digital wireless link. Thus, the radiofrequency hardware exhibits a complementary use of short range probing of piezoelectric sensors subject to harsh environmental conditions, and long range digital communication through a wireless sensor network. The demonstration is performed in the 434 MHz European Industrial, Scientific and Medical band, yielding half-duplex communication ranges well beyond 100 m.

Pages: 48 to 52

Copyright: Copyright (c) IARIA, 2012

Publication date: August 19, 2012

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-207-3

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012