Using mostly off the shelf hardware, [Marzo] creates a bowl-shaped phased array of ultrasonic transducers driven ... It looks like a lot of fun. Acoustic levitation is nothing new here – we ...

[Julius Kramer] tried his hand at acoustic levitation, and decided to share his build. The build relies on an astounding number of ultrasonic transducers – 72, in fact. The device operates at 40 ...

Acoustic levitation ... systems. Ultrasonic Energy: Sound waves with frequencies higher than the upper limit of human hearing, often used in various applications, including cleaning and ...