Ray trace modeling of multipath in ultrasound power measurement system

Auteurs-es

  • Lixue Wu Institute for National Measurement Standards, National Research Council Canada, 1200 Montreal Rd., Ottawa, Ont. K1A 0R6, Canada

Mots-clés :

Acoustic variables measurement, Speed control, Ultrasonics, Multipath, Reflecting surfaces, Ultrasound sources

Résumé

A ray tracing ultrasound model that calculates the ultrasound pressure at some point in a water tank remote from an ultrasound source is described. The method parallels the process of geometric optics and assumes constant ultrasound speed in water. The discussion of an experiment results shows the validation of the ray trace modeling method, and an algorithm is also presented that finds the optimal measurement settings for an existing ultrasound power measurement system to minimize the effect of multipath. The formation of multiple images of an ultrasound source due to the reflecting surfaces can further simplify the calculation. A tone-burst signal was fed to the transducer so that the direct waves and reflections can be distinguished by their different arrival times at the hydrophone. Experimental data showed that the measured beam shapes are within ?5 mm of those calculated by the ray trace model.

Fichiers supplémentaires

Publié-e

2007-09-01

Comment citer

1.
Wu L. Ray trace modeling of multipath in ultrasound power measurement system. Canadian Acoustics [Internet]. 1 sept. 2007 [cité 1 mai 2026];35(3):152-3. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1946

Numéro

Vol. 35 No. 3 (2007)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

Licence

Author Licensing Addendum

This Licensing Addendum ("Addendum") is entered into between the undersigned Author(s) and Canadian Acoustics journal published by the Canadian Acoustical Association (hereinafter referred to as the "Publisher"). The Author(s) and the Publisher agree as follows:

  1. Retained Rights: The Author(s) retain(s) the following rights:

    • The right to reproduce, distribute, and publicly display the Work on the Author's personal website or the website of the Author's institution.
    • The right to use the Work in the Author's teaching activities and presentations.
    • The right to include the Work in a compilation for the Author's personal use, not for sale.

  2. Grant of License: The Author(s) grant(s) to the Publisher a worldwide exclusive license to publish, reproduce, distribute, and display the Work in Canadian Acoustics and any other formats and media deemed appropriate by the Publisher.

  3. Attribution: The Publisher agrees to include proper attribution to the Author(s) in all publications and reproductions of the Work.

  4. No Conflict: This Addendum is intended to be in harmony with, and not in conflict with, the terms and conditions of the original agreement entered into between the Author(s) and the Publisher.

  5. Copyright Clause: Copyright on articles is held by the Author(s). The corresponding Author has the right to grant on behalf of all Authors and does grant on behalf of all Authors, a worldwide exclusive license to the Publisher and its licensees in perpetuity, in all forms, formats, and media (whether known now or created in the future), including but not limited to the rights to publish, reproduce, distribute, display, store, translate, create adaptations, reprints, include within collections, and create summaries, extracts, and/or abstracts of the Contribution.