Nicholson, Walter Guyton CadyĪ crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency.
Quartz crystals are also found inside test and measurement equipment, such as counters, signal generators, and oscilloscopes.Ī miniature 16 MHz quartz crystal enclosed in a hermetically sealed HC-49/S package, used as the resonator in a crystal oscillator.Īlexander M. Most are used for consumer devices such as wristwatches, clocks, radios, computers, and cellphones. More than two billion crystals are manufactured annually. Quartz crystals are manufactured for frequencies from a few tens of kilohertz to hundreds of megahertz. The result is that a quartz crystal behaves like an RLC circuit. When the field is removed, the quartz - which oscillates in a precise frequency - generates an electric field as it returns to its previous shape, and this can generate a voltage.
This property is known as electrostriction or inverse piezoelectricity. The most common type of piezoelectric resonator used is the quartz crystal, so oscillator circuits incorporating them became known as crystal oscillators, but other piezoelectric materials including polycrystalline ceramics are used in similar circuits.Ī crystal oscillator, particularly one made of quartz crystal, works by being distorted by an electric field when voltage is applied to an electrode near or on the crystal. This frequency is commonly used to keep track of time, as in quartz wristwatches, to provide a stable clock signal for digital integrated circuits, and to stabilize frequencies for radio transmitters and receivers. You can browse and sort reflexions in the list double-click any reflexion to instantly locate it in the plot.A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency. Search, Browse ReflexionsĪn integrated Search field lets you quickly find simulated reflexions: in the plotted pattern, or in the Reflexions List. Patterns can be sorted according to various criteria and auto-stacked on screen. You can also specify a precise plot range, use the Scroller tool or use the toolbar's scale and scrolling commands. Just "pinch-to-zoom", and slide to scroll horizontally, or scale vertically. Scaling and scrolling your diffraction pattern is a breeze with CrystalDiffract's trackpad support.
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