Visualizing sound! Shadowgraph of an acoustic levitator.
Seeing sound waves is very challenging; perhaps elusive for many! Turns out an optical apparatus can be used to do that. We still need a high speed camera to see the waves traveling in real time (or almost real time) - which means hours of FUN in the lab! Hope you find this insightful!
---Acoustic levitator instructable:
https://www.instructables.com/id/Acoustic-Levitator/
---My blog describing the mathematics behind visualizing sound with shadowgraph and schlieren:
https://zigunov.com/2020/05/01/seeing-sound-waves-with-your-schlieren-apparatus/
https://zigunov.com/2020/05/05/schlieren-vs-shadowgraph-for-sound-visualization-part-ii/
---Lecture on aliasing and the z-Transform:
https://www.youtube.com/watch?v=dq7-Bqu8HRA&t=355s
Видео Visualizing sound! Shadowgraph of an acoustic levitator. канала Fernando Zigunov
---Acoustic levitator instructable:
https://www.instructables.com/id/Acoustic-Levitator/
---My blog describing the mathematics behind visualizing sound with shadowgraph and schlieren:
https://zigunov.com/2020/05/01/seeing-sound-waves-with-your-schlieren-apparatus/
https://zigunov.com/2020/05/05/schlieren-vs-shadowgraph-for-sound-visualization-part-ii/
---Lecture on aliasing and the z-Transform:
https://www.youtube.com/watch?v=dq7-Bqu8HRA&t=355s
Видео Visualizing sound! Shadowgraph of an acoustic levitator. канала Fernando Zigunov
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