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Levitation: How Cool Is That?
If you thought the power of levitation was only available to magicians, maybe you have to check out this amazing project.
“We present Ultraino, a modular, inexpensive, and open platform that provides hardware, software and example applications specifically aimed at controlling the transmission of narrowband airborne ultrasound. The software can be used to define array geometries, simulate the acoustic field in real time and control the connected driver boards. The driver board design is based on an Arduino Mega and can control 64 channels with a square wave of up to 17 Vpp and ?/5 phase resolution. Multiple boards can be chained together to increase the number of channels. 40 kHz arrays with flat and spherical geometries are demonstrated for parametric audio generation, acoustic levitation and haptic feedback.”
The maker Asier Marzo uses an Arduino Mega to control an 8×8 array of ultrasonic transducers, which when carefully coordinated using a simulation program, not only can suspend a particle but cause it to move around the grid of transducers.
All the information you need are available here.
Watch the video below to find out how it works. You can also skip to 8:30 in the video below to see it manipulating a particle, or to 9:30 where several individual drops of alcohol and food coloring are able to float in mid-air.