Ultrasound fields from triangular apertures

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    The pulsed field from a triangular aperture mounted in an infinite, rigidbaffle is calculated. The approach of spatial impulse responses,as developed by Tupholme and Stepanishen, is used. By this both the emitted and received pulsed ultrasound field can be found for any transducerexcitation and electro-mechanical impulse response. The continuous wavefield is also readily obtainable through a simple Fourier transform. Thespatial impulse response is calculated without approximation, and thesolution is valid in the half space in front of the aperture for ahomogeneous, non-attenuating medium. The solution can be used in finiteelements programs for calculating fields from arbitrary transducergeometries.
    Original languageEnglish
    JournalAcoustical Society of America. Journal
    Issue number4
    Pages (from-to)2049-2056
    Publication statusPublished - 1996

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    Copyright (1996) Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.

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