The Physics Teacher
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.
Locate the Document
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.
Available for download on Friday, May 22, 2020