A team of researchers at the University of São Paulo in Brazil has developed a new levitation device that can hover a tiny object with more control than any instrument that has come before.
Featured on this week’s cover of the journal Applied Physics Letters, from AIP Publishing, the device can levitate polystyrene particles by reflecting sound waves from a source above off a concave reflector below. Changing the orientation of the reflector allow the hovering particle to be moved around.
Other researchers have built similar devices in the past, but they always required a precise setup where the sound source and reflector were at fixed “resonant” distances. This made controlling the levitating objects difficult. The new device shows that it is possible to build a “non-resonant” levitation device — one that does not require a fixed separation distance between the source and the reflector.
This breakthrough may be an important step toward building larger devices that could be used to handle hazardous materials, chemically-sensitive materials like pharmaceuticals — or to provide technology for a new generation of high-tech, gee-whiz children’s toys.
“Modern factories have hundreds of robots to move parts from one place to another,” said Marco Aurélio Brizzotti Andrade, who led the research. “Why not try to do the same without touching the parts to be transported?”
The device Andrade and his colleagues devised was only able to levitate light particles (they tested it polystyrene blobs about 3 mm across). “The next step is to improve the device to levitate heavier materials,” he said.
Read more: Acoustic Levitation Made Simple
The Latest on: Acoustic Levitation
via Google News
The Latest on: Acoustic Levitation
- Design approach of perforated labyrinth-based acoustic metasurface for selective acoustic levitation manipulationon April 7, 2021 at 2:17 am
This paper proposes a metasurface design approach with perforated labyrinthine path coil structure to manipulate the acoustic transmission with inexpensive materials. The medium in the labyrinthine ...
- Using Acoustic Levitation For Applications Going Way Beyond Noveltyon April 5, 2021 at 5:00 pm
We’ve all seen acoustic levitation, it’s one of the scientific novelties of our age and a regular on the circuit of really impressive physical demonstrations of science to the public.
- 72 Tranducers For Acoustic Levitationon April 4, 2021 at 5:01 pm
[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 ...
- ASUS Republic of Gamers unveils the ROG Strix XF 120 Cooling Fanon March 27, 2021 at 6:35 pm
ROG Strix XF 120 is a 120 mm PWM fan that delivers optimal airflow and static pressure for use as PC case, radiator or CPU cooler fan.
- Window and Door Systems - EBE 85 ASon August 11, 2020 at 6:58 pm
EBE 85 AS combines top-level insulation with excellent air and water-tightness, resistance to wind load and acoustic insulation.
- Ultrasonic Hands Could Give Robots a Lighter Touchon January 23, 2020 at 2:11 pm
Schuck can suspend a small object between the two halves of the sphere — a phenomenon called “acoustic levitation.” Schuck now plans to survey experts from various industries to explore ...
- Bird deterrent systems at airports not 100% effective, expert sayson August 16, 2019 at 6:42 am
"There is no 'red button' to protect airfields from birds. There is a set of measures, namely, bio-acoustic equipment. There should be round-the-clock presence of ornithologists on the field ...
- Scientists Used a Tractor Beam to Levitateon April 4, 2018 at 1:53 pm
Acoustic levitation uses this wave to balance against gravity. The result is a free-floating particle that looks a little like science fiction magic. Dialing in the sound waves means lifting ...
- Could We Levitate Humans With the World’s Most Powerful Acoustic Tractor Beam?on January 22, 2018 at 7:17 am
Acoustic tractor beams use sound, or more specifically soundwaves, to hold particles in mid-air. While magnetic levitation also exists, acoustic levitation tends to work better for handling ...
- Nanobiotechnology and Nanomedicine Companieson November 10, 2017 at 5:42 pm
Develops and manufactures acoustic droplet ejection (ADE ... a device for culturing cells in three-dimensions by magnetic levitation. The Bio-Assembler combines nanoparticle based Nanoshuttle-PL with ...
via Bing News