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The Physics Teacher

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Ultrasound imaging -- research


The labs presented here build on a simple speed of sound activity and models medical ultrasound imaging by demonstrating how multiple reflections propagate in a closed system. A short sound pulse is emitted into a pipe that is closed at one end and contains one or more partially reflecting surfaces within the pipe. The variety of reflections and transmissions that occur can be measured with a microphone at the pipe entrance.


Creative Commons License Copyright (2019) Author(s). This article is distributed under a Creative Commons Attribution (CC BY) License Creative Commons Attribution 4.0 International License.

This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in (Allen, T., Chally, A., Moser, B., & Widenhorn, R. (2019). Sound Propagation, Reflection, and Its Relevance to Ultrasound Imaging. The Physics Teacher, 57(3), 134-137.) and may be found at (

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