TY - GEN
T1 - Wireless surface acoustic wave radio frequency identification (SAW-RFID) sensor system for temperature and strain measurements
AU - Li, Fang
AU - Xiang, Dan
AU - Chiang, Shan
AU - Tittmann, Bernhard R.
AU - Searfass, Cliff
PY - 2011
Y1 - 2011
N2 - The testing, validation, and monitoring of aerostructural design and health conditions require a non-intrusive and in-situ means to provide real time strain/stress and vibration data of turbine engine structures. However, taking such a measurement is difficult due to the extremely harsh environment in turbine engines. The SAW-RFID sensor provides a promising tool to operate in such a harsh environment, because it takes advantage of being passive, wireless and tolerant for high temperatures. These characteristics give it the ability to measure the strain/stress and temperature on engine blades in real time. In this paper, we present our work on the design, fabrication and testing of SAW-RFID devices as wireless temperature and strain sensors. The SAW-RFID sensors were first designed based upon the Finite Element Modeling (FEM). These sensors are then fabricated with micro-fabrication techniques. The antennas of the SAW sensor and RFID reader were also developed. The fabricated sensors were tested. Finally, we demonstrate the capability of our SAW sensor for the temperature and strain measurements, which show the consistence with the simulation values.
AB - The testing, validation, and monitoring of aerostructural design and health conditions require a non-intrusive and in-situ means to provide real time strain/stress and vibration data of turbine engine structures. However, taking such a measurement is difficult due to the extremely harsh environment in turbine engines. The SAW-RFID sensor provides a promising tool to operate in such a harsh environment, because it takes advantage of being passive, wireless and tolerant for high temperatures. These characteristics give it the ability to measure the strain/stress and temperature on engine blades in real time. In this paper, we present our work on the design, fabrication and testing of SAW-RFID devices as wireless temperature and strain sensors. The SAW-RFID sensors were first designed based upon the Finite Element Modeling (FEM). These sensors are then fabricated with micro-fabrication techniques. The antennas of the SAW sensor and RFID reader were also developed. The fabricated sensors were tested. Finally, we demonstrate the capability of our SAW sensor for the temperature and strain measurements, which show the consistence with the simulation values.
UR - http://www.scopus.com/inward/record.url?scp=84869029640&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869029640&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2011.0201
DO - 10.1109/ULTSYM.2011.0201
M3 - Conference contribution
AN - SCOPUS:84869029640
SN - 9781457712531
T3 - IEEE International Ultrasonics Symposium, IUS
SP - 822
EP - 825
BT - 2011 IEEE International Ultrasonics Symposium, IUS 2011
T2 - 2011 IEEE International Ultrasonics Symposium, IUS 2011
Y2 - 18 October 2011 through 21 October 2011
ER -