Mercury is a naturally occurring element that is found in air, water and soil. Exposure to mercury â even small amounts â may cause serious health problems, and is a threat to the development of the child in utero and early in life. Mercury may have toxic effects on the nervous, digestive and immune systems, and on lungs, kidneys, skin and eyes.
An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave. Oscillators convert direct current (DC) from a power supply to an alternating current signal.
1. Categories of Quartz Crystal Oscillators. Quartz crystal oscillator is a timing device consisting of quartz crystal resonator and an oscillation circuit to generate an output waveform at specified frequency. It can be classified into four main categories based on its typical applications.