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Diffraction effects in hydrophone measurements.

Authors
  • Goldstein, A
  • Gandhi, D R
  • O'Brien, W R
Type
Published Article
Journal
IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
Publisher
Institute of Electrical and Electronics Engineers
Publication Date
Jan 01, 1998
Volume
45
Issue
4
Pages
972–979
Identifiers
DOI: 10.1109/58.710571
PMID: 18244251
Source
Medline
License
Unknown

Abstract

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 steady-state 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 measurements.

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