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A novel SAW strain sensor with in-built temperature measurement capability

Title data

Fischerauer, Alice ; Fischerauer, Gerhard:
A novel SAW strain sensor with in-built temperature measurement capability.
In: Institute of Electrical and Electronics Engineers (IEEE) (ed.): Proceedings of the IEEE International Ultrasonics Symposium (IUS). - Red Hook, NY : Curran Associates, Inc. , 2013 . - pp. 2094-2097
ISBN 978-1-4673-4561-3
DOI: https://doi.org/10.1109/ULTSYM.2012.0523

Abstract in another language

In this contribution, we describe a novel temperature-compensated SAW strain sensor for remote sensing. Temperature is the most important disturbance variable in SAW sensors, and this motivates the search for methods to suppress the temperature influence. The sensor design proposed consists of two SAW structures each comparable to a delay line and exploits electrical loading and multiple-transit signals. The interdigital transducers (IDTs) are connected in a way that leads to a sensor signal with a frequency spectrum showing a certain number of minima depending on the distances between the IDTs. The frequencies of these minima are influenced by both strain and temperature. Their evaluation allows to extract a temperature compensated strain signal with a resolution of about 10 ppm.

Further data

Item Type: Article in a book
Refereed: No
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology > Chair Measurement and Control Technology - Univ.-Prof. Dr.-Ing. Gerhard Fischerauer
Faculties
Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Measurement and Control Technology
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 09 Mar 2016 09:44
Last Modified: 09 Mar 2016 09:44
URI: https://eref.uni-bayreuth.de/id/eprint/31654