Academic journal article Science Scope

Acoustic Levitation Made Simple

Academic journal article Science Scope

Acoustic Levitation Made Simple

Article excerpt

A team of researchers has developed a new levitation device that can hover a tiny object with more control than any instrument that has come before. It can levitate polystyrene particles by reflecting sound waves from an above source off a concave reflector below. Changing the orientation of the reflector allows the hovering particle to be moved around.

Other researchers have built similar devices in the past, but they have 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 nonresonant levitation device--one that does not require a fixed separation distance between the source and the reflector.

"Just turn the levitator on and it is ready," says Marco Aurelio Brizzotti Andrade, who led the research.

This breakthrough may be an important step toward building larger devices that could be used to handle hazardous materials, chemically sensitive materials such as pharmaceuticals, or to provide technology for a new generation of high-tech children's toys. …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.