NDLI: Surface Acoustic Wave Resonators as Passive Buried Sensors

Content Provider	IEEE Xplore Digital Library
Author	Friedt, J.-M. Rétornaz, T. Martin, G. Laroche, T. Alzuaga, S. Baron, T. Carry, E. Ballandras, S. Simonnet, J.-P.
Copyright Year	2010
Abstract	Acoustic wave devices are well known passive transducers for probing through a wireless link a physical quantity. Amongst the two main classes of designs - resonators and delay lines - the former have the advantage of providing informations in a narrow band signal and are hence compatible with an interrogation strategy compliant with radiofrequency (RF) emission regulations, while the latter are probed by a short RF pulse with larger instantaneous energy and shorter response time. We here demonstrate the measurement of temperature using the two configurations, and more specifically for sensors buried in soil. While we demonstrate long term stability and ruggedness of packaged resonators, and signal to noise ratio compatible with the envisioned application, the interrogation range in insufficient for most purposes and we focus towards the use of delay lines. Indeed, the interrogation method of the latter is similar to that used by Ground Penetrating RADAR (GPR) which displays interrogation ranges in the meter to tens of meters in the lower RF range, depending on soil water content, permittivity and conductivity. Thus, we demonstrate here both the temperature mesurement capability of a delay buried delay line and the limit of detection of its signal.
Starting Page	183
Ending Page	189
File Size	1699444
Page Count	7
File Format	PDF
ISBN	9781424474745
e-ISBN	9781424474738
DOI	10.1109/SENSORDEVICES.2010.41
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-18
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Radio frequency Ground Penetrating RADAR Ground penetrating radar Surface Acoustic Wave Delay lines Soil Delay line Electromagnetics
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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