Kristallivärähtelijät

Kristallivärähtelijät, also known as crystal oscillators, are electronic components that use the mechanical resonance of a vibrating crystal to create a precise electrical signal with a specific frequency. These crystals are typically made of quartz due to its piezoelectric properties. When an electric voltage is applied across a quartz crystal, it deforms. Conversely, when the crystal is deformed, it generates an electric voltage. This piezoelectric effect allows the crystal to vibrate at a specific frequency determined by its size, shape, and cut. An electronic circuit, often called an oscillator circuit, is connected to the crystal. This circuit amplifies the crystal's vibrations and feeds them back, sustaining the oscillation. The frequency generated by a crystal oscillator is remarkably stable, making them ideal for applications requiring accurate timekeeping or signal generation. They are commonly found in quartz watches, computers, radios, and many other electronic devices where precise timing is crucial. The stability of a crystal oscillator is influenced by factors such as temperature and mechanical stress, though specialized designs and temperature compensation techniques can minimize these effects.