System-level modelling of surface acoustic wave strain sensors

Abstract

-Surface Acoustic Wave (SAW) devices may be configured as strain sensors, providing passive, wireless strain measurement in demanding conditions. A key consideration is the modelling of the sensors, enabling different device designs to be considered. These simulations may then be used in system-level models of complete measurement systems. This paper presents a simulation scheme using Coupling-Of-Modes (COM) analysis. Preliminary results are compared to experimental values from the literature, and good agreement is found.