Trying to levitate objects with FPGAs...
Acoustic levitation employs radiation forces to suspend an object in air without any contact. This type of levitation has been widely used for contactless manipulation of particles in biology, medicine, and physics, amongst other areas. Other methods exist for contactless handling, including magnetic, electrostatic and optical trapping. However, acoustic processing has the advantage of working on different materials and at different sizes.
Learn the theoretical and practical aspects...
W. Beasley, B. Gatusch, D. Connolly-Taylor, C. Teng, A. Marzo and J. Nunez-Yanez, 'Ultrasonic Levitation with Software-Defined FPGAs and Electronically Phased Arrays,', 2019 NASA/ESA Conference on Adaptive Hardware and Systems (AHS), 2019, pp. 41-48, doi: 10.1109/AHS.2019.000-2.
...check the videos....
working demo
Circular movement
presentation
...get the project.
github