Numerical Analysis of Multi-Functional Surface Acoustic Wave Sensor

<p>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.</p>

Name thesis:degree_name

Master of Science in Aerospace Engineering

Level thesis:degree_level

Thesis - Open Access

Discipline thesis:degree_discipline

Aerospace Engineering

Year

2020

Author dc:creator

• Xu, Xin

• numerical analysis
• surface acoustic waves
• Aerodynamics and Fluid Mechanics
• Aerospace Engineering

Repository record dc:identifier

https://commons.erau.edu/edt/559

OAI identifier oai:identifier

oai:commons.erau.edu:edt-1562