Date of Award
12-2020
Access Type
Thesis - Open Access
Degree Name
Master of Science in Aerospace Engineering
Department
Aerospace Engineering
Committee Chair
Dr. Daewon Kim
First Committee Member
Dr. Eduardo Rojas
Second Committee Member
Dr. Mandar Kulkarni
Abstract
A surface acoustic wave (SAW) sensor can have broad industrial applications due to its compact size, low cost-effectiveness, and versatility of sensible measurands, as well as the wireless capabilities. In this study, a theoretical modeling approach accompanied by a MATLAB-based algorithm of the SAW device is first presented. With the designed dimensional parameters and selected material properties, numerical analyses are performed using COMSOL Multiphysics to validate the theoretical results. Various postprocessing responses of the propagated SAWs in both time and frequency domains, such as time delay, insertion loss, and frequency shift, are examined to evaluate the device performances. Also, the sensing mechanisms of multiple sensing measurands, such as mechanical strain and temperature, are investigated by scrutinizing the changes of the wave characteristics.
Scholarly Commons Citation
Xu, Xin, "Numerical Analysis of Multi-Functional Surface Acoustic Wave Sensor" (2020). Doctoral Dissertations and Master's Theses. 559.
https://commons.erau.edu/edt/559
