http://www.iflscience.com/technology/ultrasound-used-create-3d-shapes-mid-air-can-be-seen-and-felt
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http://www.iflscience.com/technology/ultrasound-used-create-3d-shapes-mid-air-can-be-seen-and-felt
Posted from WordPress for Android
2 Comments
Tomi Engdahl says:
https://hackaday.com/2021/08/18/phased-array-levitation-is-science-in-action/
Tomi Engdahl says:
A Volumetric Display using an Acoustically Trapped Particle
https://www.youtube.com/watch?v=hCC1C5KIeUA
This video describes a volumetric display I designed and built that uses a phased arrray of ultrasonic transducers to levitate a 1mm foam ball and move it at speeds greater than 1m/s. The POV effect makes it seem as if you’re drawing in mid-air!
This was such a fun project – I still giggle (maniacally) when watching this thing go. There’s something truly magical about watching something levitate in mid-air and then start zipping around so fast, you can’t see it.
You can find all the design files here: https://github.com/danfoisy/vdatp