Model based wireless SAW tag temperature measurement

In this paper, a new algorithm for surface acoustic wave (SAW) sensor based temperature measurement is presented. The used interrogation unit is based on a frequency stepped continuous wave radar (FSCW). The minimum achievable temperature variance is calculated by means of the Cramer Rao lower bound (CRLB). A verification of the results based on measured data is given.

[1]  Andreas Stelzer,et al.  Readout Unit for Wireless SAW Sensors and ID-Tags , 2004 .

[2]  Leonhard Reindl,et al.  High Precision Wireless Measurement of Temperature by Using Surface Acoustic Waves Sensors , 2003 .

[3]  Gerhard Fischerauer,et al.  Surface acoustic wave sensors for high-temperature applications , 1998, Proceedings of the 1998 IEEE International Frequency Control Symposium (Cat. No.98CH36165).

[4]  A. Stelzer,et al.  Performance evaluation of algorithms for SAW-based temperature measurement , 2006, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[5]  K. Hashimoto.  Surface Acoustic Wave Devices in Telecommunications , 2000 .