Multiphysics Modeling of Printed Surface Acoustic Wave Thermometer

Alejandro Draper; Zhangxian Deng

Multiphysics Modeling of Printed Surface Acoustic Wave Thermometer

Alejandro Draper, Zhangxian Deng

Mechanical and Biomedical Engineering Department

Boise State University

Research output: Chapter in Book/Report/Conference proceeding › Chapter

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 frequencydomain. 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.

Original language	American English
Title of host publication	Proceedings of SPIE
State	Published - 1 Jan 2022

Keywords

COMSOL Multiphysics
lithium niobate
piezoelectric materials
surface acoustic wave

EGS Disciplines

Biomedical Engineering and Bioengineering
Mechanical Engineering

Access to Document

https://doi.org/10.1117/12.2613141

Cite this

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title = "Multiphysics Modeling of Printed Surface Acoustic Wave Thermometer",

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 frequencydomain. 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 = "Draper, Alejandro and Deng, Zhangxian. (2022). {"}Multiphysics Modeling of Printed Surface Acoustic Wave Thermometer{"}. In Proceedings of SPIE (Volume 12046, no. 1204608). SPIE: Society of Photo-Optical Instrumentation Engineers. https://doi.org/10.1117/12.2613141",

year = "2022",

month = jan,

day = "1",

language = "American English",

booktitle = "Proceedings of SPIE",

}

TY - CHAP

T1 - Multiphysics Modeling of Printed Surface Acoustic Wave Thermometer

AU - Draper, Alejandro

AU - Deng, Zhangxian

N1 - Draper, Alejandro and Deng, Zhangxian. (2022). "Multiphysics Modeling of Printed Surface Acoustic Wave Thermometer". In Proceedings of SPIE (Volume 12046, no. 1204608). SPIE: Society of Photo-Optical Instrumentation Engineers. https://doi.org/10.1117/12.2613141

PY - 2022/1/1

Y1 - 2022/1/1

N2 - 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 frequencydomain. 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.

AB - 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 frequencydomain. 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.

KW - COMSOL Multiphysics

KW - lithium niobate

KW - piezoelectric materials

KW - surface acoustic wave

UR - https://scholarworks.boisestate.edu/mecheng_facpubs/196

UR - https://doi.org/10.1117/12.2613141

M3 - Chapter

BT - Proceedings of SPIE

ER -

Multiphysics Modeling of Printed Surface Acoustic Wave Thermometer

Abstract

Keywords

EGS Disciplines

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