Broadband piezocrystal transducer array for non-destructive evaluation imaging applications

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

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Abstract

A 32-element, 5MHz linear array, incorporating PMN-PT 1-3 piezo-polymer composite, has been designed using finite element (FE) modelling. The Elasto-Electric material properties of the PMN-PT samples were characterized and evaluated within the FE model to ensure accurate corroboration. The array configuration and performance were then investigated, including array microstructure, and steering and focusing ability. The matching and backing material selection, array sensitivity and bandwidth were assessed using pulse echo responses. Imaging performance was then undertaken, employing full matrix capture and total focusing method. For performance comparison, a reference array comprising of conventional PZT5H ceramic was also investigated, following the same design criteria. The piezocrystal device provides a bandwidth of 87% and a sensitivity-bandwidth product improvement of 160% when compared to the reference PZT5H based array.
Original languageEnglish
Title of host publicationProceeding 2018 IEEE International Ultrasonics Symposium
Place of PublicationNew York
PublisherIEEE
Number of pages4
ISBN (Electronic)978-1-5386-3425-7
ISBN (Print)978-1-5386-3426-4
DOIs
Publication statusPublished - 20 Dec 2018
Event2018 IEEE International Ultrasonics Symposium - Portopia Hotel, Kobe, Japan
Duration: 22 Oct 201825 Oct 2018

Conference

Conference2018 IEEE International Ultrasonics Symposium
Abbreviated titleIUS 2018
CountryJapan
CityKobe
Period22/10/1825/10/18

Keywords

  • piezocrystal
  • broadband
  • ultrasound linear array
  • non destructive testing

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