Estimator for reflective delay line-type SAW sensors

This correspondence presents an estimator for reflective delay line-type surface acoustic wave (SAW) sensors. The estimator is derived from an analytical model and its range of validity is discussed. The proposed estimator enables simultaneous access to several SAW sensors with time-orthogonal respo...

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Veröffentlicht in:	IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2009-06, Vol.56 (6), p.1277-1281
Hauptverfasser:	Viikari, V., Kokkonen, K., Meltaus, J., Seppa, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic sensors Acoustic wave devices, piezoelectric and piezoresistive devices Acoustic waves Acoustics Acoustics - instrumentation Analytical models Applied sciences Computational efficiency Computer-Aided Design Delay Delay estimation Delay lines Electronics Equipment Design Equipment Failure Analysis Estimators Exact sciences and technology Fast Fourier transforms Ferroelectric materials Fourier transforms Fundamental areas of phenomenology (including applications) Mathematical analysis Physics Propagation delay Reproducibility of Results Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Sensitivity and Specificity Sensors Surface acoustic waves Time Factors Transducers Transduction acoustical devices for the generation and reproduction of sound
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Beschreibung
Zusammenfassung:	This correspondence presents an estimator for reflective delay line-type surface acoustic wave (SAW) sensors. The estimator is derived from an analytical model and its range of validity is discussed. The proposed estimator enables simultaneous access to several SAW sensors with time-orthogonal responses and it can be implemented in a computationally efficient way utilizing the fast Fourier transform algorithm. The estimator is experimentally verified and its performance is compared with that of a reference estimator.
ISSN:	0885-3010 1525-8955
DOI:	10.1109/TUFFC.2009.1170