Transducer field imaging using acoustography

Jaswinder S. Sandhu, Robert W. Schoonover, Joshua I. Weber, J. Tawiah, Vitaliy Kunin, Mark A. Anastasio

Research output: Contribution to journalArticlepeer-review

Abstract

A common current practice for transducer field mapping is to scan, point-by-point, a hydrophone element in a 2D raster at various distances from the transducer radiating surface. This approach is tedious, requiring hours of scanning time to generate full cross-sectional and/or axial field distributions. Moreover, the lateral resolution of the field distribution image is dependent on the indexing steps between data points. Acoustography is an imaging process in which an acousto-optical (AO) area sensor is employed to record the intensity of an ultrasound wavefield on a two-dimensional plane. This paper reports on the application of acoustography as a simple but practical method for assessing transducer field characteristics. A case study performed on a commercial transducer is reported, where the radiated fields are imaged using acoustography and compared to the corresponding quantities that are predicted numerically.

Original languageEnglish (US)
Article number275858
JournalAdvances in Acoustics and Vibration
DOIs
StatePublished - Jul 16 2012
Externally publishedYes

ASJC Scopus subject areas

  • Building and Construction
  • Mechanics of Materials
  • Acoustics and Ultrasonics

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