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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
toccata
  • In music, a work for a keyboard-instrument, like the pianoforte or organ, originally intended to utilize and display varieties of touch: but the term has been extended so as to include many irregular works, similar to the prelude, the fantasia, and the improvisation.
This word is Italian in origin, coming from the feminine past participle of 'toccare,' to touch.
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