@inproceedings{cbe07b81af9a430082c1278665b8ee9d,
title = "Multiphysics modeling of printed surface acoustic wave thermometers",
abstract = "Surface acoustic wave (SAW) devices consisting of interdigitated transducers printed on piezoelectric substrates have resulted in low-cost, low-power, and small-footprint thermometers for high temperature and radioactive environments. This study developed temperature-dependent finite element models in both time- and frequency-domain. Modeling accuracy was evaluated using an aerosol-jet printed SAW thermometer measured from room temperature to 200 Celsius. Time-domain simulation results enabled acoustic wave propagation visualization and successfully guided the signal denoising of measured scattering parameters. Frequency-domain simulation accurately predicted the temperature-driven natural frequency drift in SAW transducers while maintaining high computational efficiency. The models developed in this study will facilitate computer-aided design of future SAW transducers and expand their applications in harsh environments.",
keywords = "COMSOL Multiphysics, Lithium Niobate, Piezoelectric materials, surface acoustic wave",
author = "Alejandro Draper and Zhangxian Deng",
note = "Publisher Copyright: {\textcopyright} 2022 SPIE.; Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2022 ; Conference date: 04-04-2022 Through 10-04-2022",
year = "2022",
doi = "10.1117/12.2613141",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
editor = "Daniele Zonta and Daniele Zonta and Branko Glisic and Zhongqing Su",
booktitle = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2022",
}