Title :
Multi-sensor wireless interrogation of SAW resonators at high temperatures
Author :
Canabal, A. ; Davulis, P.M. ; Pollard, T. ; Cunha, M. Pereira da
Author_Institution :
Lab. for Surface Sci. & Technol. (LASST), Univ. of Maine, Orono, ME, USA
Abstract :
This paper presents for the first time, to the best of the authors´ knowledge, successful wireless interrogation of a suite of harsh environment SAW temperature sensors and respective antennas operating at temperatures in excess of 900°C. The suite of langasite (LGS) SAW sensors, utilizing high-temperature Pt/Rh/ZrO2 thin-film electrodes, with the respective integrated antennas and the interrogator antenna were designed, fabricated, and verified to operate together in the same harsh environment conditions. The set of resonator based SAW sensors were simultaneously interrogated wirelessly in the frequency domain by a single transceiver. Multiple sensor temperature data has been obtained from the different sensors used.
Keywords :
antennas; electrodes; high-temperature electronics; sensor fusion; surface acoustic wave resonators; surface acoustic wave sensors; temperature sensors; thin film sensors; wireless sensor networks; LGS SAW sensor; SAW resonator; harsh environment SAW temperature sensor; high-temperature thin film electrode; interrogator antenna; langasite SAW sensor; multisensor wireless interrogation; Antennas; Sensor systems; Surface acoustic waves; Temperature measurement; Temperature sensors; Wireless sensor networks; Harsh Environment SAW; High Temperature; LGS; Resonator Sensors; SAW Devices for Wireless Applications;
Conference_Titel :
Ultrasonics Symposium (IUS), 2010 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-0382-9
DOI :
10.1109/ULTSYM.2010.5935789
