Modeling of surface acoustic wave strain sensors using coupling-of-modes analysis

Brian Mc Cormack; Dermot Geraghty; Margaret O'Mahony

doi:10.1109/TUFFC.2011.2102

Modeling of surface acoustic wave strain sensors using coupling-of-modes analysis

IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Nov;58(11):2461-8. doi: 10.1109/TUFFC.2011.2102.

Authors

Brian Mc Cormack¹, Dermot Geraghty, Margaret O'Mahony

Affiliation

¹ Department of Mechanical and Manufacturing Engineering, Trinity College, Dublin, Ireland. mccormb@tcd.ie

PMID: 22083778
DOI: 10.1109/TUFFC.2011.2102

Abstract

SAW devices may be configured as strain sensors, providing passive, wireless strain measurement in demanding conditions. A key consideration is the modeling of the sensors, enabling different device designs to be considered. This paper presents a simulation scheme using coupling-of-modes (COM) analysis which allows both the frequency response of a SAW strain sensor and its bias sensitivity to be evaluated. Example applications are presented to demonstrate the use of the model.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acoustics / instrumentation*
Computer Simulation
Computer-Aided Design*
Elastic Modulus
Elasticity Imaging Techniques / instrumentation*
Equipment Design
Equipment Failure Analysis
Materials Testing / instrumentation*
Models, Theoretical*
Scattering, Radiation
Transducers*