Cool Gadgets, Gizmos, Games and Geek Stuff on Technabob
VISIT OUR OTHER SITES: THE AWESOMER | 95OCTANE

Technabob is reader-supported. When you buy through links on our site, we may earn an affiliate commission.
As an Amazon Associate I earn from qualifying purchases. Learn more.

DIY Acoustic Levitator Lets You Float Objects in Mid-air

by Paul Strauss
Advertisement

While most levitation is achieved with magnets, it’s also possible to suspend small objects in air using sound waves. Thanks to engineer Asier Marzo, you can even create your own acoustic levitator, which can float lightweight objects like water droplets, styrofoam beads, and even insects.

zoom in

The system uses a 3D printed rig that holds two opposing grids filled with 36 tiny ultrasonic transducers each. An Arduino Nano, a power supply, and a motor drive board control the transducers, which basically push and pull on small objects you place in their path, holding them in mid-air. Levitation is achieved by pushing air out of both top and bottom transducers, which apply an equivalent amount of pressure from above and below the objects.

Asier describes the highlights of the build in the video below:

Neat, eh? Now if you’re ready to build your own acoustic levitator, check out the full build log over on Instructables. There’s a great article on the physics behind acoustic levitation over on How Stuff Works too.



Radiohead on Cello

Radiohead on Cello

Synthesizer Pillows

Synthesizer Pillows

Making a Cardboard Transmission

Making a Cardboard Transmission

Advertisement
Less Expensive Rear-Wheel Drive Tesla Model Y Standard Range EV Debuts

Less Expensive Rear-Wheel Drive Tesla Model Y Standard Range EV Debuts

Pagani Huayra R Is Getting a Naturally-aspirated V12 If Our Ears are Correct

Pagani Huayra R Is Getting a Naturally-aspirated V12 If Our Ears are Correct

An Eleanor Mustang from “Gone in 60 Seconds” Is for Sale

An Eleanor Mustang from “Gone in 60 Seconds” Is for Sale

Advertisement