Visual Display of Sound Waves in Two-Dimensional Models

Authors

  • W. M. Barss Department of Physics, University of Victoria
  • J. E. Bernard Department of Physics, University of Victoria
  • I. S. Graham Department of Physics, University of Victoria

Abstract

At the British Acoustical Society meeting in Loughborough, England, in 1972, there was a demonstration in which the passage of an ultrasonic pulse through water was made visible by a schlieren system using Ronchi grids. That system was used to display the effect of submerged sections of pipes or other shapes on the reflection and transmission of underwater sound. The present project was devised to apply the same principles to display the reflection of sound from the surfaces of an auditorium, using either air or water as the propagation medium in the model. Such a display, which can illustrate focussing effects and excessive delays between arrivals of direct and reflected sound waves, was desired for demonstrations in connection with a proposed course in architectural acoustics and for testing models of halls designed by local architects for the University or other clients.

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Published

1977-01-01

How to Cite

1.
Barss WM, Bernard JE, Graham IS. Visual Display of Sound Waves in Two-Dimensional Models. Canadian Acoustics [Internet]. 1977 Jan. 1 [cited 2021 Oct. 27];5(1):15-9. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/400

Issue

Section

Technical Articles