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Latest Piezoelectricity Stories

'Magic Carpet' Modeled After Manta Ray
2011-09-30 11:18:41

A team at Princeton University has developed a four-inch transparent magic carpet. The team, lead by graduate student Noah Jafferis, created a flying carpet based on the manta ray that utilizes piezoelectric actuators and sensors.  The electric current flexes the sheet into waves that drive tiny pockets of air across the sheet. The prototype moves at about 120 feet per hour and only travels a few inches high above the ground. Jafferis said he is working on a solar powered...

2011-09-27 18:05:00

This 2011 survey conducted by Canon Communications and sponsored by Tekscan, Inc. sheds light on the challenges and priorities of product designers in the medical device market, particularly as they relate to sourcing and integrating components like force sensors. Engineers ranked a list of six sensor attributes in order of importance. Accuracy topped the list. Boston, MA (PRWEB) September 27, 2011 Tactile force sensor manufacturer Tekscan, Inc. recently teamed up with Canon Communications...

2011-09-23 11:44:24

Crystals and ceramics pale when compared to a material researchers at Oak Ridge National Laboratory discovered that has 10 times their piezoelectric effect, making it suitable for perhaps hundreds of everyday uses. ORNL's Volker Urban and colleagues at Technical University Aachen in Germany noticed the reverse piezoelectric effect - defined as creating a mechanical strain by applying an electrical voltage -- while conducting fundamental research on polymers. At first they didn't think...

2011-08-15 22:02:24

By combining two frontier technologies, spintronics and straintronics, a team of researchers from Virginia Commonwealth University has devised perhaps the world's most miserly integrated circuit. Their proposed design runs on so little energy that batteries are not even necessary; it could run merely by tapping the ambient energy from the environment. Rather than the traditional charge-based electronic switches that encode the basic 0s and 1s of computer lingo, spintronics harnesses the...

2011-08-04 09:00:00

PORTSMOUTH, N.H., Aug. 4, 2011 /PRNewswire/ -- Novocure, a commercial stage private oncology company, announced today that it has entered into a long-term supply agreement with ITT Electronic Systems, a subsidiary of global engineering and manufacturing conglomerate ITT Corporation (NYSE: ITT). ITT Electronic Systems supplies Novocure with the piezoelectric ceramic components used to manufacture the disposable electrodes for the NovoTTF-100A System, an FDA approved device indicated for the...

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2011-07-27 08:44:09

Biological interface Taking advantage of the unique properties of zinc oxide nanowires, researchers have demonstrated a new type of piezoelectric resistive switching device in which the write-read access of memory cells is controlled by electromechanical modulation. Operating on flexible substrates, arrays of these devices could provide a new way to interface the mechanical actions of the biological world to conventional electronic circuitry. The piezoelectrically modulated resistive memory...

2011-07-20 12:00:00

DALLAS, July 20, 2011 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced the most highly integrated piezo haptic driver for mobile consumer and industrial designs. The DRV8662 features an integrated 105-V boost converter, power diode, and 50-V to 200-V peak-to-peak (Vpp) fully-differential amplifier, resulting in a solution size that is 50 percent smaller than leading competitors. The DRV8662 also lowers total solution cost by 40 percent compared to competing...

2011-03-29 19:48:15

Superlenses earned their superlative by being able to capture the "evanescent" light waves that blossom close to an illuminated surface and never travel far enough to be "seen" by a conventional lens. Superlenses hold enormous potential in a range of applications, depending upon the form of light they capture, but their use has been limited because most have been made from elaborate artificial constructs known as metamaterials. The unique optical properties of metamaterials, which include the...

2011-03-11 15:51:29

The droning of a car driving along the highway can be nerve-racking. Often, a driver cannot understand the passengers in the rear seat, not to mention the pianissimo on the car stereo. Actually, though, there are ways to drive this disruptive vibration out of the car. This is possible thanks to "smart materials" "“ intelligent materials that can tailor their own condition to changing situations with highest speed. The possible applications are diverse and promising "“ not just for...

2011-03-09 16:28:00

Rutgers researchers have identified a class of high-strength metal alloys that show potential to make springs, sensors and switches smaller and more responsive. The alloys could be used in springier blood vessel stents, sensitive microphones, powerful loudspeakers, and components that boost the performance of medical imaging equipment, security systems and clean-burning gasoline and diesel engines. While these nanostructured metal alloys are not new "“ they are used in turbine blades...


Word of the Day
monteith
  • A large punch-bowl of the eighteenth century, usually of silver and with a movable rim, and decorated with flutings and a scalloped edge. It was also used for cooling and carrying wine-glasses.
  • A kind of cotton handkerchief having white spots on a colored ground, the spots being produced by a chemical which discharges the color.
This word is possibly named after Monteith (Monteigh), 'an eccentric 17th-century Scotsman who wore a cloak scalloped at the hem.'
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