Diffraction effects in hydrophone measurements

Albert Goldstein, Darshan R. Gandhi, William D. O'Brien

Research output: Contribution to journalArticlepeer-review


Theoretical and experimental methodology are presented for accurately determining the effective radii of unfocused, circular plane piston transducers as well as using tone burst hydrophone measurements to verify steadystate theoretical calculations. Experiments using two specially fabricated unfocused, composite piezoelectric transducers demonstrate the validity of the methodology. For spherically focused circular transducers, a simple model is used to estimate the transient diffraction encountered in co-axial flat hydrophone measiirements.

Original languageEnglish (US)
Pages (from-to)972-979
Number of pages8
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Issue number4
StatePublished - Dec 1 1998

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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