quartz crystal


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quartz crystal

a thin plate or rod cut in certain directions from a piece of piezoelectric quartz and accurately ground so that it vibrates at a particular frequency
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

quartz crystal

[′kwȯrts ¦krist·əl]
(electronics)
A natural or artificially grown piezoelectric crystal composed of silicon dioxide, from which thin slabs or plates are carefully cut and ground to serve as a crystal plate.
(mineralogy)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

quartz crystal

A slice of quartz ground to a prescribed thickness that vibrates at a steady frequency when stimulated by electricity. The tiny crystal, about 1/20th by 1/5th of an inch, creates the computer's heartbeat. Without the quartz crystal, there would be no computers as we know them today! See clock and MHz.
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References in periodicals archive ?
The following assumptions were adopted in order to simplify the analysis: the rigidities of the quartz crystal chip groups, as well as the same sensitivity and symmetrical uniform layout, are identical.
[1.] Marrison, W.A., "The Evolution of the Quartz Crystal Clock," Bell System Technical Journal, 27:510-588, 1948, doi: 10.1002/j.15387305.1948.tb01343.x.
Complete quartz crystals (1, 2), a quartz sphere cut from a crystal (3) and thin quartz plates cut parallel to the crystal faces of prisms and rhombs (4) were used for the hydrothermal experiments (Fig.
Choi, Measurement of nanoparticle concentration using quartz crystal microgravimetry, Journal of Physical Chemistry B 114 (49), 16112-16117 (2010).
(2007) Photo-derivatized polymer thin films at quartz crystal microbalance surfaces: sensors for carbohydrate-protein interactions.
The three cristalliers in question, Christophe Lelievre, Michael Bibollet-Ruches and Frederic Eva, opened the cleft on Aiguille Verte in August 2007; from it came clusters, to almost 10 cm, of gemmy, glowing rose-pink fluorite octahedrons to 6 cm on edge individually, as well as beautiful smoky quartz crystal clusters to large-cabinet size, and interesting specimens showing transparent, colorless, lustrous "paper spar" calcite with free-standing crystals to 6.5 cm (Lelievre, 2008).
Kyoto, Japan, Oct 10, 2005 - (JCN Newswire) - Kyocera Corporation is pleased to announce that Kyocera Kinseki, a full subsidiary engaged in the development and production of electronic devices, will ship the CX3225SB miniature low-frequency quartz crystal unit, the world's first miniature, and smallest(*1), crystal unit which oscillates in the 4MHz frequency range.
DuPont Zodiaq[R] is a material that captures the radiance of quartz crystal with depth, clarity, and strength while embracing nature and technology.
Today, acoustic sensors are generally based on quartz crystal resonators that are found in electronic devices such as watches, computers, and televisions, with more than 1 billion units mass-produced each year.
The NX2520DA series is an ultra-micro miniature quartz crystal that exhibits the optimum electrical performance required for miniature wireless applications.