ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The wireless passive surface acoustic wave (SAW) impedance-loaded sensors offer new andexciting perspectives for remote monitoring and controlling of moving parts, even in harsh environments.However, the classical simulation models such as equivalent circuit model (ECM) and coupling of modes(COM) model are not rigorous enough for these sensors since these sensors usually work in the RF band.We try to make it more accurate by using FEM/BEM (combined finite element method and boundaryelement method) model to determine some key parameters used in the COM model of impedance-loadedSAW sensors. In this paper, we use periodic Green function which is the basis of FEM/BEM model todetermine the key parameters. The result of measurements on real SAW is nearly in accordance with thatof simulations
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.198.pdf
