Piezoelectricity
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Piezoelectricity is the electric charge that accumulates in certain solid materials—such as crystals, certain ceramics, and biological matter such as bone, DNA, and various proteins—in response to app
Piezoelectric balance presented by Pierre Curie to Lord Kelvin, Hunterian Museum, Glasgow
View of piezo crystal in the top of a Curie compensator in the Museum of Scotland.
Butane lighter piezo
Piezoelectric disk used as a guitar pickup
Crystal oscillator
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A crystal oscillator is an electronic oscillator circuit that uses a piezoelectric crystal as a frequency-selective element. The oscillator frequency is often used to keep track of time, as in quartz
Piezoelectricity
…The piezoelectrical properties of quartz are useful as a standard of frequency. Quartz clocks employ a crystal oscillator made from a quartz crystal that uses a combination of both direct and converse piezoelectricity to generate a regularly timed series of electrical…
A miniature 16 MHz quartz crystal enclosed in a hermetically sealed HC-49/S package, used as the resonator in a crystal oscillator.
Quartz crystal resonator (left) and quartz crystal oscillator (right)
100 kHz crystal oscillators at the US National Bureau of Standards that served as the frequency standard for the United States in 1929
Very early Bell Labs crystals from Vectron International Collection