Global Sources
EE Times-India
Stay in touch with EE Times India
 
EE Times-India > RF/Microwave
 
 
RF/Microwave  

Jellyfish-like robot built on nanotechnology

Posted: 27 Mar 2012     Print Version  Bookmark and Share

Keywords:robot  nanotechnology 

A team of researchers have created a jellyfish-like robot based on nanotechnology. The hydrogen-powered 'Robojelly' is an undersea vehicle that could be used in ocean rescue and surveillance missions.

Researchers at The University of Texas at Dallas and Virginia Tech claim 'Robojelly' feeds off hydrogen and oxygen gases found in water. The study has been published in Smart Materials and Structures.

"We've created an underwater robot that doesn't need batteries or electricity," said Dr. Yonas Tadesse, assistant professor of mechanical engineering at UT Dallas and lead author of the study. "The only waste released as it travels is more water."

The Robojelly consists of two bell-like structures made of silicone that fold like an umbrella. Connecting the umbrella are muscles that contract to move.

In this study, researchers upgraded the original, battery-powered Robojelly to be self-powered. They did that through a combination of high-tech materials, including artificial muscles that contract when heated.

These muscles are made of a nickel-titanium alloy wrapped in carbon nanotubes, coated with platinum and housed in a pipe. As the mixture of hydrogen and oxygen encounters the platinum, heat and water vapour are created. That heat causes a contraction that moves the muscles of the device, pumping out the water and starting the cycle again.

"It could stay underwater and refuel itself while it is performing surveillance," Tadesse said.

In addition to military surveillance, Tadesse said, the device could be used to detect pollutants in water.

Tadesse said the next step would be refining the legs of the devices to move independently, allowing the Robojelly to travel in more than one direction.





Comment on "Jellyfish-like robot built on nanote..."
Comments:  
*  You can enter [0] more charecters.
*Verify code:
 
 
Webinars

Seminars

Visit Asia Webinars to learn about the latest in technology and get practical design tips.

 

Go to top             Connect on Facebook      Follow us on Twitter      Follow us on Orkut

 
Back to Top