What is a quartz oscillator?
quartz oscillator is an electronic circuit that generates a signal at a frequency determined by a quartz crystal made of silicon and oxygen. The piezoelectric property of the quartz makes it a very good resonator from the tens of Kilohertz (KHZ) to hundreds of Megahertz (MHz). The crystal quartz oscillator is usually designed to work at only one exact frequency. These oscillators are used to create stable frequencies in mobile phone receivers, global positioning receivers (GPS) and two -way radios. They are also used for accurate time measures in watches, computers and other electronic devices. Once this voltage is removed, the crystal can return to the original shape and generate the voltage as it does. This feature is discovered in 1880 and called Piezoelectricity is critical for the operation of the oscillator. Experimentyvenka with various crystal materials have been made over time and the first quartz oscillator was assembled at the end of 1910. From the 1920s with a quartz crystThe ale oscillators often use amateur, commercial and military radio equipment in lessons.
When the quartz oscillator is supplied for the first time, the perimeter introduces a random noise signal into the crystal. Part of this noise will always be at the crystal resonant frequency, causing the crystal to oscillate. The voltage created by the crystal when the shape is changed is amplified by the circuit of the quartz oscillator and brought back to the crystal resonator. As this process is repeated, the signals inside the limited frequency band of the crystal will be stronger, while other frequencies will be filtered out. Once this "heating" period is completed, the oscillator will work exactly on its proposed frequency.
The shape, size and cutter of quartz determines how quickly it expands and contrasts. The quartz oscillator can work at this speed, called its resonant frequencies. Can also work on the frequency of undertone, which is a multipleResonance frequencies. While quartz crystals occur naturally in the environment, very large amounts are produced to increase the yield and supply of physically usable crystals.
Frequency output by quartz oscillator can be influenced by a number of external factors including temperature and even sudden acceleration. The radiation will also affect the frequency, be it space rays in the spacecraft, X -ray, or pulse ionizing radiation. Some of these factors may be compensated by other circuits that monitor the conditions and adequately adjust the output of the oscillator. Some quartz oscillators include a precisely controlled oven with a crystal inside to compensate for temperature changes. Quartz crystals can also be "swept" or against.