Linear array transducers for vibro-acoustography

Glauber T. Silva, Mostafa Fatemi

Research output: Contribution to journalConference article

5 Scopus citations

Abstract

In this work, we present computational simulations of the beamforming in transducers with two linear arrays for vibro-acoustography. The simulation will be used as the basis of linear array design for vibro-acoustography imaging. The point spread function (PSF) of the system, defined as the stress field at the focal zone, is obtained as the product of the spatial impulse functions of the arrays. Grating lobe effects in the stress field are analyzed. Results show that a transverse resolution of about (2 × 3) mm, with proper grating lobe suppression, can be achieved by using two 32-element arrays. Furthermore, the variations on the PSF of the vibro-acoustography system based on linear arrays are reasonably acceptable for medical imaging applications.

Original languageEnglish (US)
Pages (from-to)629-632
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
Volume1
StatePublished - Dec 1 2002
Event2002 IEEE Ultrasonics Symposium - Munich, Germany
Duration: Oct 8 2002Oct 11 2002

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ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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