Featured Research

from universities, journals, and other organizations

Shoe power generator, embedded in the sole of a shoe, harvest energy

Date:
April 27, 2010
Source:
Louisiana Tech University
Summary:
New technology harvests power from a small generator embedded in the sole of a shoe. It is based on new voltage regulation circuits that efficiently convert a piezoelectric charge into usable voltage for charging batteries or for directly powering electronics.

Illustration of Dr. Ville Kaajakari's shoe power generator.
Credit: Image courtesy of Louisiana Tech University

Dr. Ville Kaajakari, assistant professor of electrical engineering at Louisiana Tech University has developed a technology that harvests power from a small generator embedded in the sole of a shoe.

Related Articles


Kaajakari's innovative technology, developed at Louisiana Tech's Institute for Micromanufacturing (IfM), is based on new voltage regulation circuits that efficiently convert a piezoelectric charge into usable voltage for charging batteries or for directly powering electronics.

"This technology could benefit, for example, hikers that need emergency location devices or beacons," said Kaajakari. "For more general use, you can use it to power portable devices without wasteful batteries."

The technology is being featured by MEMS Investor Journal, a national online industry publication. MEMS are tiny "smart" devices that combine computer chips with micro-components such as sensors, gears, flow-channels, mirrors and actuators.MEMS Investor Journal is an independent publication that provides investment professionals with the latest developments in the micro electro mechanical systems (MEMS) industry.

According to the article, energy harvesting is an attractive way to power MEMS sensors and locator devices such as GPS. However, power harvesting technologies often fall short in terms of output as many of today's applications require higher power levels.

Kaajakari's breakthrough uses a low-cost polymer transducer that has metalized surfaces for electrical contact. Unlike conventional ceramic transducers, the polymer-based generator is soft and robust, matching the properties of regular shoe fillings. The transducer can therefore replace the regular heel shock absorber with no loss in user experience.

In addition to running sensors and inertial navigation, Kaajakari's shoe power generator can also be used to power RF transponders and GPS receivers.

"Ultimately, we want to bring up the power levels up to a point where we could, in addition to sensors, charge or power other portable devices such as cell phones."

http://www.memsinvestorjournal.com/2010/04/microstructured-piezoelectric-shoe-power-generator-outperforms-batteries.html#more

Article: Microstructured piezoelectric shoe power generator outperforms batteries


Story Source:

The above story is based on materials provided by Louisiana Tech University. The original article was written by Dave Guerin. Note: Materials may be edited for content and length.


Cite This Page:

Louisiana Tech University. "Shoe power generator, embedded in the sole of a shoe, harvest energy." ScienceDaily. ScienceDaily, 27 April 2010. <www.sciencedaily.com/releases/2010/04/100426113137.htm>.
Louisiana Tech University. (2010, April 27). Shoe power generator, embedded in the sole of a shoe, harvest energy. ScienceDaily. Retrieved November 25, 2014 from www.sciencedaily.com/releases/2010/04/100426113137.htm
Louisiana Tech University. "Shoe power generator, embedded in the sole of a shoe, harvest energy." ScienceDaily. www.sciencedaily.com/releases/2010/04/100426113137.htm (accessed November 25, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Tuesday, November 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Who Will Failed Nuclear Talks Hurt Most?

Who Will Failed Nuclear Talks Hurt Most?

Reuters - Business Video Online (Nov. 25, 2014) With no immediate prospect of sanctions relief for Iran, and no solid progress in negotiations with the West over the country's nuclear programme, Ciara Lee asks why talks have still not produced results and what a resolution would mean for both parties. Video provided by Reuters
Powered by NewsLook.com
Flying Enthusiast Converts Real-Life Aircraft Cockpit Into Simulator

Flying Enthusiast Converts Real-Life Aircraft Cockpit Into Simulator

Reuters - Innovations Video Online (Nov. 25, 2014) A virtual flying enthusiast converts parts of a written-off Airbus aircraft into a working flight simulator in his northern Slovenian home. Jim Drury reports. Video provided by Reuters
Powered by NewsLook.com
Car Park Solution for Flexible Green Energy

Car Park Solution for Flexible Green Energy

Reuters - Innovations Video Online (Nov. 24, 2014) A British solar power start-up says that by covering millions of existing car park spaces around the UK with flexible solar panels, the country's power problems could be solved. Suzannah Butcher reports. Video provided by Reuters
Powered by NewsLook.com
Microsoft Adds Robot Guards, Ushers In Sci-Fi Apocalypse

Microsoft Adds Robot Guards, Ushers In Sci-Fi Apocalypse

Newsy (Nov. 23, 2014) Microsoft has robotic security guards working at its Silicon Valley Campus. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins