Acoustic levitator

It is shown the implementation of the acoustic levitator with polystyrene spheres. The experimental setup consists of two opposing ultrasonic transducers (PROWAVE 400SR160), a frequency generator, and a 3D¿printed holder that allows us to control the distance between transducers. It consists of two pieces; the lower one contains the first transducer and acts as a base. The second piece is the upper part, where the second transducer is placed. The holder has also an extendable part that allows to regulate the separation between both transducers. The ultrasonic transducers are connected in parallel to the frequency generator. The latter is configured with a sinusoidal signal off 40kHz and Vpp=10V. The polystyrene spheres are placed at each node, seeking to levitate a particle at each node. More information: https://doi.org/10.1002/cae.22718