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piezoelectric effect
(redirected from piezoelectricity)

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piezoelectric effect

Property of some crystals (for example, quartz) to develop an electromotive force or voltage across opposite faces when subjected to tension or compression, and, conversely, to expand or contract in size when subjected to an electromotive force. Piezoelectric crystal oscillators are used as frequency standards (for example, replacing balance wheels in watches), and for producing ultrasound. Crystalline quartz is a good example of a piezoelectric material.

The crystals are also used in phonograph pickups, transducers in ultrasonics, and certain gas lighters.
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Like the lighter, Piezoelectricity was invented in the early 1800s, but the full potential of it was only first realized in 1917, by French scientists.
The History of the Cigar Lighter by Bryan Halverson / Reference and Education community
To quote Fukada, whom the others regard as a pioneer in the subject, "Stress-induced electricity in bone is caused by both piezoelectricity in collagen and streaming potential in microcanals in bone.
Electrifying biology; biological systems naturally produce ... by Thomsen, Dietrick E. / Science News
 
 
 
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