Improving the operational bandwidth of a 1-3 piezoelectric composite transducer using Sierpinski Gasket fractal geometry

Fang, Haoyu and Qiu, Zhen and O'Leary, Richard and Gachagan, Anthony and Mulholland, Anthony; (2016) Improving the operational bandwidth of a 1-3 piezoelectric composite transducer using Sierpinski Gasket fractal geometry. In: Ultrasonics Symposium (IUS), 2016 IEEE International. IEEE, FRA.

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Abstract

Wider operational bandwidth is an important requirement of an ultrasound transducer across many applications. It has been reported mathematically that by having elements with varying length scales in the piezoelectric transducer design, the device may possess a wider operational bandwidth or a higher sensitivity compared to a conventional device. In this paper, the potential for extending the operational bandwidth of a 1-3 piezoelectric composite transducer configured in a fractal geometry, known as the Sierpinski Gasket (SG), will be investigated using finite element analysis package PZFlex (Thornton Tomasetti). Two equivalent piezocomposite designs will be simulated: a conventional 1-3 piezocomposite structure and the novel SG fractal geometry arrangement. The transmit voltage response and open circuit voltage extracted from the simulations are used to illustrate the improved bandwidth predicted from the fractal composite design.

ORCID iDs

Fang, Haoyu ORCID: https://orcid.org/0000-0002-6531-0486

Qiu, Zhen ORCID: https://orcid.org/0000-0002-6219-7158

O'Leary, Richard ORCID: https://orcid.org/0000-0002-4092-2101

Gachagan, Anthony ORCID: https://orcid.org/0000-0002-9728-4120

Mulholland, Anthony ORCID: https://orcid.org/0000-0002-3626-4556

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  Item type:	Book Section
  ID code:	58100
  Dates:	Date Event 18 September 2016 Published 2 September 2016 Accepted
  Notes:	© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering Technology and Innovation Centre > Sensors and Asset Management Faculty of Science > Mathematics and Statistics
  Depositing user:	Pure Administrator
  Date deposited:	10 Oct 2016 08:45
  Last modified:	17 Dec 2024 01:03
  Related URLs:	Event Journal or Publication
  URI:	https://strathprints.strath.ac.uk/id/eprint/58100