Title :
Wireless acoustic wave sensors and systems for harsh environment applications
Author :
Da Cunha, M. Pereira ; Lad, R.J. ; Davulis, P. ; Canabal, A. ; Moonlight, T. ; Moulzolf, S. ; Frankel, D.J. ; Pollard, T. ; Cann, D. Mc ; Dudzik, E. ; Abedi, A. ; Hummels, D. ; Bernhardt, G.
Author_Institution :
Lab. for Surface Sci. & Technol., Univ. of Maine, Orono, ME, USA
Abstract :
This paper reviews current progress in the area of wireless microwave acoustic sensor technology, and discusses advances in wireless interrogation systems that can operate in harsh environments. The use of wireless, battery-free, low maintenance surface acoustic wave (SAW) sensors has been successfully demonstrated in applications including high temperature turbine engines and inflatable aerospace structures. Wireless interrogation of multiple sensors up to 910°C has been established and sensor tests in gas turbine engine are reported. This paper elaborates on several aspects of the technology, including: high-temperature thin-film electrode and sensor development, temperature cycling, thermal-shock behavior, testing in turbine engine environments, sensor packaging and attachment, wireless operation, and adaptation to energy and industrial applications.
Keywords :
engines; gas turbines; sensor fusion; surface acoustic wave sensors; wireless sensor networks; harsh environment applications; high temperature turbine engines; high-temperature thin-film electrode; inflatable aerospace structures; sensor packaging; temperature 910 C; thermal-shock behavior; wireless acoustic wave sensors; wireless acoustic wave systems; wireless interrogation; Films; Surface acoustic waves; Temperature measurement; Temperature sensors; Wireless communication; Wireless sensor networks; SAW devices; Wireless sensors; high temperature; piezoelectric materials; thin film electrodes;
Conference_Titel :
Wireless Sensors and Sensor Networks (WiSNet), 2011 IEEE Topical Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
978-1-4244-8414-0
Electronic_ISBN :
978-1-4244-8413-3
DOI :
10.1109/WISNET.2011.5725021
