dc.contributor.author |
Thasankithan, VS |
|
dc.contributor.author |
Gamage, UV |
|
dc.contributor.author |
Adikary, SU |
|
dc.contributor.editor |
Abeygunawardana, AAGA |
|
dc.date.accessioned |
2022-03-08T09:27:57Z |
|
dc.date.available |
2022-03-08T09:27:57Z |
|
dc.date.issued |
2021-12 |
|
dc.identifier.citation |
Thasankithan, V.S., Gamage, U.V., & Adikary, S.U. (2021). Modelling of micro size ultrasonic generator and receiver characteristics of lead zirconate titanate and polyvinylidene fluoride using finite element analysis [Abstract]. In A.A.G.A. Abeygunawardane (Ed.), Innovative materials through mathematical modeling and simulations (p. 16). Department of Materials Science and Engineering, University of Moratuwa. |
en_US |
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/17201 |
|
dc.description.abstract |
Ultrasonic devices (sensors, generators and transducers) using piezoelectric materials are more
prominent due to its accuracy, efficiency and ease handling. In this research, modelling and
simulation of ultrasonic generator and receiver characteristics were performed using finite element
analysis (FEA). PZT is the most popular piezoelectric ceramic in ultrasonic applications due to its
higher coupling factors, which is the main reason why PZT-5H was chosen for FEA analysis over
other piezoceramic materials. PVDF was chosen for FEA analysis over other piezopolymer
materials, due to its high piezoelectric voltage coefficient. Then piezoelectric constitutive
equations for direct effect and indirect were used for mathematical calculation in thickness mode
to determine the generated voltage and displacement along the z direction. The dimensions of the
design were selected in micro scale. Using the FEA simulation, disc shape ultrasonic generator
and receiver were designed. To identify the resonant frequency of the model wizard, 3D model
was created using COMSOL Multiphysics software. The FEA simulation was implemented via 4
different cases, for instance using PZT-5H as generator material with PVDF and PZT-5H as two
separate ultrasonic receiver materials and PVDF as generator material with PVDF and PZT-5H as
two separate ultrasonic receiver materials. Initially the resonant frequency of the piezoelectric disc
was determined as 13 MHz from the simulation and electric potential of 10V with 13MHz was
used to generate the ultrasound wave. This ultrasonic wave was then directed to hit the ultrasonic
receiver to generate electric potential. When PVDF worked as receiver it generated higher electric
potential than PZT. On the other hand, when PZT worked as an ultrasonic generator the high
amount of ultrasonic pressure was generated. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Department of Materials Science and Engineering, University of Moratuwa. |
en_US |
dc.subject |
ultrasonic waves |
en_US |
dc.subject |
ultrasonic sensor |
en_US |
dc.subject |
lead zirconate titanate |
en_US |
dc.subject |
polyvinylidene fluoride |
en_US |
dc.title |
Modelling of micro size ultrasonic generator and receiver characteristics of lead zirconate titanate and polyvinylidene fluoride using finite element analysis |
en_US |
dc.type |
Conference-Abstract |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.department |
Department of Materials Science and Engineering |
en_US |
dc.identifier.year |
2021 |
en_US |
dc.identifier.conference |
Materials Engineering Symposium on Innovations for Industry 2021 |
en_US |
dc.identifier.place |
University of Moratuwa |
en_US |
dc.identifier.pgnos |
p. 16 |
en_US |
dc.identifier.proceeding |
Innovative materials throughout mathematical modeling and simulations |
en_US |
dc.identifier.email |
suadi@uom.lk |
en_US |