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Latest Piezoelectric accelerometer Stories

2012-03-02 14:18:32

Research will lead to better more efficient harvesting devices Scientists working as part of the Metrology for Energy Harvesting Project have developed a new model to deliver the maximum power output for piezoelectric energy harvesters. Piezoelectric materials convert electrical energy into a strain (or vice-versa). The best known use of piezoelectricity is for medical ultrasound. Piezoelectric energy harvesters utilise energy from unwanted mechanical vibrations, such as the rattling...

2011-11-18 03:29:48

Integrating a complex, single-crystal material with "giant" piezoelectric properties onto silicon, University of Wisconsin-Madison engineers and physicists can fabricate low-voltage, near-nanoscale electromechanical devices that could lead to improvements in high-resolution 3-D imaging, signal processing, communications, energy harvesting, sensing, and actuators for nanopositioning devices, among others. Led by Chang-Beom Eom, a UW-Madison professor of materials science and engineering and...

2010-09-14 22:08:44

Piezoelectric materials have fantastic properties: squeeze them and they generate an electrical field. And vice-versa, they contract or expand when jolted with an electrical pulse. With a name derived from the Greek word meaning to squeeze or press, the piezoelectric effect was just a curiosity after it was discovered in several crystals in 1880. But in 1917, a quartz piezoelectric crystal was at the heart of the world's first submarine-detecting sonar. Piezoelectric materials really took off...

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2008-12-04 16:05:00

Scientists at Texas A&M University have successfully doubled the efficiency of piezoelectric devices that gather energy from movement and vibrations.The work could mean that devices such as "self-powered" phones that charge when you speak into them are one step closer to reality.The piezoelectric effect occurs in some ceramic and crystalline and materials. Stretching or compressing the materials causes a separation of electric charge across their width, which establishes a voltage.The...


Word of the Day
Cthulhu
  • A gigantic fictional humanoid alien god being described with a head resembling an octopus and dragon wings and claws, around whom an insane cult developed.
  • Pertaining to the mythos of Cthulhu and additional otherworldly beings created by H. P. Lovecraft or inspired by his writings and imitators.
This word was invented in 1926 by H.P. Lovecraft for his short story, 'The Call of Cthulhu.' 'Cthulhu' may be based on the word 'chthonic,' which in Greek mythology refers to the underworld.
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