Skip to Content

Exclusive: Rock Band Unplugged Track List
AOL Tech

piezoelectric posts

Supermarket generates piezoelectric power in parking lot


Remember that piezoelectric road prototype we saw late last year? Looks like someone (besides us) thought it was a good idea. According to The Daily Mail, a Sainsbury's supermarket in Gloucester, UK (you've never been there), has installed kinetic plates in the parking lot that use the weight of shopper's cars to pump a series of hydraulic pipes, which in turn drive a generator. The system is said to generate up to 30kw of energy an hour -- or enough to power the store's checkouts. And if that weren't enough, the store is also harvesting rainwater and heating it (during the summer, at least) with solar panels. The next in this store's "eco-friendly evolution?" Might we suggest Soylent in the deli? We hear the "green" stuff is particularly good.

[Via Green Launches, Thanks Deepa]

Sensitive Object's Anywhere MultiTouch extends touch sensitivity to the whole device


Sensitive Object, a French startup best known for its louche, Gitanes-smoking engineers and its love of cocktail jazz, has just announced the development of Anywhere MultiTouch, a Windows 7-compliant platform that brings touch sensitivity to glass, aluminum, and plastic, through the use of piezoelectric sensors. This product is an extension of the company's ReverSys technology, which recognizes the precise location where an object is touched through soundwaves, with the new platform throwing in handwriting recognition and palm rejection for good measure. It looks like multitouch has finally been freed from the tyranny of the display, with developers now able to incorporate actions along the whole device. Excited? We bet you are. Full PR after the break.

Pilotfish's Ondo music editing mobile concept puts new twist on smartphones


It's been nearly three years since the Onyx tickled our imagination, but Pilotfish is looking to completely melt our brains with its latest concept. The Munich-based industrial design firm has just introduced its Ondo music editing mobile, which is half cellphone, half music mixer and thoroughly amazing. In theory, the phone would boast a small mixing panel, three removable recording sticks with internal memory and a bendable center to give music lovers the ability to insert pitch bends and relieve stress. Essentially, the trio of OLED-infused sticks serves two purposes: when installed, they're the main phone panel, and when removed, they can be clipped onto instruments for recording purposes. Afterwards, they can be swapped with other Ondo owners or edited on the fly right on the device itself. Needless to say, there's a better shot at you winning the lottery than seeing this thing hit mass production, but you can feel free to dream by checking the full release, Q&A and demonstration video just past the break.

Researchers develop braille for vibrating touchscreen devices


In braille, a character is made up of six dots laid out on a two by three matrix -- not something that can really be conveyed using capacitive touchscreen technology. Working with a Nokia 770 Internet Tablet, researchers in Finland have developed a method for piezoelectric touchscreen devices that uses a single pulse of intense vibration to convey a raised dot, and a longer vibration made up of several weaker pulses to represent a missing dot -- spelling out letters that can be easily read by touch. It took a while for volunteers to get used to this method, but once they had they were able to read a character in as little as 1.25 seconds. Now that they have letters down, the team is moving on to words and sentences -- with an eye towards developing text-to-braille software sometime in the future.

Piezoelectric nanowires could lead to blood-powered iPods, cellphones

You know what'll be awesome? Actual end products resulting from this presumably nonstop research on piezoelectric nanowires. Yet again we're hearing of a new group of researchers that have figured out a way to harness electricity from life's simplest things: walking, a heart beating or even the flowing of blood. Put simply, the gurus have discovered how to use zinc oxide nanowires in order to generate an electric current when "subjected to mechanical stress." The difference here, however, is that these critters could actually be implanted under the skin, though the scientists have made quite clear that there isn't a timetable for commercial production. In other words: yawn.

[Via textually, image courtesy of NSF]

Ben Heck fashions breath-controlled kick pedal for Guitar Hero

Ben Heck's at it again, and this time, he's cobbled together a breath-controlled kick pedal for use with Guitar Hero (or Rock Band, if that's your flavor) meant for people in wheelchairs, or who don't have use of their legs, but still want to get in on the rocking action. After tearing apart the kick pedal to expose its piezoelectric sensor, he mods it so that, rather than reacting to physical pressure, it'll react to air pressure. To get the job done, you'll need some PVC piping, a hot glue gun, and a drill. Hit the read link for full instructions and video of Ben himself testing out the device!

[Via Hack a Day]

Jacketed hamsters demonstrate movement-powered nanogenerators

Imagine this -- one day, with enough steroids, your pet hamster actually could power your home by just running on its wheel. Georgia Tech researchers have discovered ways to "convert even irregular biomechanical energy into electricity," and it's demonstrating the finding by showing off jacket-wearing rodents that are game to run. According to the institution's Zhong Lin Wang, the minuscule nanogenerators "can convert any mechanical disturbance into electrical energy," which theoretically means that power can be driven by simple, irregular mechanical motion such as the vibration of vocal cords, flapping of a flag or the tapping of fingers. As with most of these university discoveries, there's no telling how soon this stuff will be pushed out to the commercial realm, but at least they've found something to keep the rats busy during the off hours.

[Via news:lite, thanks Charles]

LightDrops umbrella classes up your act, generates electricity


The brainchild of designer Sang-Kyun Park, LightDrops is an umbrella that uses the piezoelectric effect of polyvinylidene fluoride (PVDF) to transform falling rain into electricity, which is then used to light LEDs installed on the umbrella's underside. The heavier the rain falls (and the harder it hits the umbrella), the brighter the light shines. Combine it with the solar tie, and who knows? This might someday become de rigueur for the stylish tech professional. Ella, ella, ella...

[Via StyleCrave]

Prototype piezoelectric road could generate power by simply sitting there

By sitting there and getting ran over by motorcars, that is. In an effort to best other power-generating highway options that involve solar panels and enlarged blender arms, Britain's Environmental Transport Association is looking to test a prototype highway that's embedded with piezoelectric crystals. Essentially, the process would work much like the power-generating Tokyo station floors we saw earlier this week; each car that squishes a crystal would contribute a tiny bit of energy, and the collective effect could be enormous. In fact, it's estimated that a single kilometer of roadway could generate 400-kilowatts of energy, or enough to power around eight small cars. And we're no rocket scientists (nor physicists), but we're assuming these whiz kids already made sure these magic crystals weren't friction-generating, too. Right?

Piezoelectrics installed in Tokyo railway station floors generate power, wastes it


The East Japan Railway Company has been running tests on a "power-generating floor" since the beginning of January 2007, but they've just installed the system for public testing in several areas of the Tokyo station. Using piezoelectrics similar to that we've seen before in a UK discotheque, the Japanese company says the power-generating capacity of the flooring has increased ten-fold over its initial results, and they now expect to generate 1,400kW/sec per day. With that, they plan to power the display pictured above, which shows the power generatd by the floor. Sound a little redundant? Fear not: they plan on using the juice to operate automatic ticket gates in the future.

[Via Inhabitat]

Power-generating dance floor hits UK club


Believe it or not, this actually isn't the first power-generating dance floor to harness some of the pent up energy of club-goers, but it is apparently the first one to hit the UK, and hopefully a sign of more to come. As you can see above, the dance floor makes use of a piezoelectric system that produces electricity as the dancers jump up and down, which charges some batteries that are used to power parts of the club. While that's certainly a practical application for the technology, we're guessing it's only a matter of time before some enterprising club owner combines one of these with an LED dance floor to create a dance floor that powers itself, and thumbs its nose at other do-gooder clubs.

Read - Dancefloor generates electricity at London's first eco-disco!
Read - London Eco-Club to Get Its Power From Dancers on the Dancefloor

Piezing dress generates power, attracts nerds as wearer moves


Solar-powered dresses are so two years ago. These days, dames in the know are all about that piezoelectric material, evidenced by the incredibly flashy Piezing. Dreamed up and designed by Amanda Parkes, this piece of garb is all set to steal the show at the 2ndSkin expo in San Francisco, and according to CNET, it features electricity-generating fabrics around the joints of the elbows and hips. When the wearer walks, bends or gets downright nasty on the dance floor, the mechanical stress conjures up energy which is stored as voltage in a built-in battery where it can presumably be used later for charging your favorite handheld gizmo. Sure gets our electrons flowing.

[Via textually, image courtesy of James Patten]
Read - 2ndSkin expo
Read - CNET article on Piezing

Researchers dream up rain-powered devices

There have certainly been gizmos to surface throughout the years that react in some form or fashion to rain, but Jean-Jacques Chaillout and colleagues at the Atomic Energy Commission in France are fantasizing about using those diminutive droplets of water to actually power useful creations. After using computer models to find out just how much energy could be created by rainfall landing on piezoelectric materials, they determined that between 1 nanojoule and 25 microjoules of energy could be generated per drop. Granted, that won't keep a WoW gamer crankin' through the eve, but it could be used in everyday sensors that just need a smidgen of power in order to beam back results or data to ground control (or Major Tom). So yeah, these may not work so well in Death Valley, but we hear Amazonia could really benefit.

[Via NewScientist, image courtesy of ABC]

Tiny thermoacoustic engines pave the way for screaming gadgets

Looks like all that heat generated by your laptop may finally be useful for something other than frying eggs -- a group of grad students led by professor Orest Symko at the University of Utah has unveiled an array of "thermoacoustic" engines that turn heat into sound, which can be directed at a piezoelectric mechanism to produce electricity. The US Army-funded research seems promising but is obviously still in its infancy -- one of the designs the researchers demonstrated is half the size of a penny but pumps out 120dB of noise (about the same as a siren), while another bumped out over 135dB, (which is roughly equivalent to a jackhammer). The team expects that future, smaller designs will work at ultrasonic frequencies outside the range of human hearing. Although we're not expecting hybrid-siren-powered laptops to hit anytime soon, you Utes out there may want to invest in some earplugs -- Professor Symko says they'll be testing these designs at the University's water-heating facility in the next year.

[Via InformationWeek]

Shape-shifting paper could help tiny bots take flight


A new breakthrough in materials science may pave the way for those inevitable swarms of tiny flying robots that will one day darken the skies and strike fear into us all, as researchers in South Korea have succeeded in coaxing specially-prepared cellophane paper to rapidly curve and straighten itself in an insect-like flapping motion. Although scientists have apparently known since the 1950's that wood was piezoelectric, meaning that it bends slightly when exposed to electricity, it took a team from Inha University with help from Texas A&M to discover that the same property also holds true for other cellulose-based material. By coating both sides of a sheet of cellophane with thin layers of gold, the researchers were able to create so-called Electroactive paper (EAPap) so sensitive that the voltage from a microwave beam provides enough power to trigger its unique shape-changing abilities. Oddly enough, no one is quite sure of the physics behind the transformation -- theories center around pressure changes resulting from the movement of ions -- but regardless of how it works, we're sure that more than a few governments will be most interested in deploying this technology to beef up their domestic and international surveillance programs.

[Via Roland Piquepaille and ScienceNOW]




    AOL News

    Joystiq

    Download Squad

    TUAW

    BloggingStocks

    Asylum

    Autoblog

    Switched.com

    FanHouse

    Autoblog Green