Here is one interesting application for acoustically manipulating objects in three dimensions developed by researchers at the University of Tokyo and the Nagoya Institute of Technology.
With the tested setup, the ultrasonic standing waves could handle objects with a diameter of 0.6mm, 1mm, and 2mm. Larger particles will be handled in future experiments. The authors consider their method can be applied to manipulate objects in the industry, to create a floating screen, and, even more interestingly, for handling objects under microgravity.
The original publication can be found here.
With the tested setup, the ultrasonic standing waves could handle objects with a diameter of 0.6mm, 1mm, and 2mm. Larger particles will be handled in future experiments. The authors consider their method can be applied to manipulate objects in the industry, to create a floating screen, and, even more interestingly, for handling objects under microgravity.
The original publication can be found here.