Ultrafast piezoelectric actuator squeezes fluid film yielding untethered transport device for omni-directional transport of tiny components/ parts

https://www.eurekalert.org/news-releases/1094390

"frictionless movement for >3m/ second on 10° inclined surface... device moves freely when levitation turned on, and when levitation was off, device could not move past the force of gravity, proving effectiveness of levitation component... levitate/ move freely when <150g total, which includes about 43g of payload... acoustic levitation uses cables that disturb positioning, overcome using wireless drive circuit for stable levitation height/ high-speed, flexible transport... machine assembly, biomedical, chemical"