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.

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 April 19, 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 April 19, 2014).

Share This



More Matter & Energy News

Saturday, April 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Small Reactors Could Be Future of Nuclear Energy

Small Reactors Could Be Future of Nuclear Energy

AP (Apr. 17, 2014) After the Fukushima nuclear disaster, the industry fell under intense scrutiny. Now, small underground nuclear power plants are being considered as the possible future of the nuclear energy. (April 17) Video provided by AP
Powered by NewsLook.com
Horseless Carriage Introduced at NY Auto Show

Horseless Carriage Introduced at NY Auto Show

AP (Apr. 17, 2014) An electric car that proponents hope will replace horse-drawn carriages in New York City has also been revealed at the auto show. (Apr. 17) Video provided by AP
Powered by NewsLook.com
Honda's New ASIMO Robot, More Human-Like Than Ever

Honda's New ASIMO Robot, More Human-Like Than Ever

AFP (Apr. 17, 2014) It walks and runs, even up and down stairs. It can open a bottle and serve a drink, and politely tries to shake hands with a stranger. Meet the latest ASIMO, Honda's humanoid robot. Duration: 00:54 Video provided by AFP
Powered by NewsLook.com
German Researchers Crack Samsung's Fingerprint Scanner

German Researchers Crack Samsung's Fingerprint Scanner

Newsy (Apr. 16, 2014) German researchers have used a fake fingerprint made from glue to bypass the fingerprint security system on Samsung's new Galaxy S5 smartphone. 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:
from the past week

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