Modeling of surface acoustic wave strain sensors using coupling-of-modes analysis |
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Authors: | Mc Cormack Brian Geraghty Dermot O'Mahony Margaret |
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Affiliation: | Department of Mechanical and Manufacturing Engineering, Trinity College, Dublin, Ireland. mccormb@tcd.ie |
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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. |
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