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.
Fang_etal_IUS2016_Improving_the_operational_bandwidth_of_a_1_3_piezoelectric_composite.pdf - Accepted Author Manuscript
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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.
|Item type:||Book Section|
|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.|
|Keywords:||fractal, Sierpinski gasket, piezocomposite, operational bandwidth, ultrasound transducer, piezoelectric transducer, transmit voltage response, open circuit voltage, Electrical engineering. Electronics Nuclear engineering, Electrical and Electronic Engineering|
|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:||23 Apr 2017 02:08|