Experimental Investigation of the Effect of Subdicing on an Ultrasound Matrix Transducer

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Abstract

Over the past decades, real-time three-dimensional (3D) medical ultrasound has attracted much attention since it enables clinicians to diagnose more accurately. This calls for ultrasound matrix transducers with a large number of elements, which can be interfaced with an application-specific integrated circuit (ASIC) for data reduction. An important aspect of the design of such a transducer is the geometry of each element, since it affects the mode of vibration and, consequently, the efficiency of the transducer. In this paper, we experimentally investigate the effect of subdicing on a piezoelectric (PZT) transducer. We fabricate and acoustically characterize a prototype PZT matrix transducer built on top of ASICs. The prototype transducer contains subdiced and non-subdiced elements, whose performance can be directly compared under the same conditions. Measurement results show that subdiced elements have a better performance compared to non-subdiced ones. Subdicing increases the peak pressure by 25%, raises the bandwidth by 10% and reduces the ringing time by 25%.
Original languageEnglish
Title of host publication2021 IEEE International Ultrasonics Symposium (IUS)
Subtitle of host publicationProceedings
Place of PublicationPiscataway
PublisherIEEE
Pages1-3
ISBN (Electronic)978-1-6654-0355-9
ISBN (Print)978-1-6654-4777-5
DOIs
Publication statusPublished - 2021
Event2021 IEEE International Ultrasonics Symposium (IUS) - Virtual at Xi'an, China
Duration: 11 Sep 202116 Sep 2021

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719

Conference

Conference2021 IEEE International Ultrasonics Symposium (IUS)
Abbreviated titleIUS 2021
Country/TerritoryChina
CityVirtual at Xi'an
Period11/09/2116/09/21

Bibliographical note

Accepted Author Manuscript

Keywords

  • ASIC
  • PZT
  • matrix
  • subdicing
  • ultrasound transducer

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