A certain amount of voltage with a value of magnitude and frequency is applied on the crystal, which makes the crystal to vibrate. Piezo Buzzers: In many applications like car reverse indicator, computers, etc.When an electric signal is applied across the crystal, the crystal vibrates which helps to regulate the gear inside the watch periodically. Quartz Watch: In our day-to-day usage, the wrist watch uses quartz resonator that work as an oscillator.This is known as Inverse Piezoelectric Effect. Whenever an electric field is applied onto crystal terminals, it undergoes mechanical stress and results in shape change. They produce electric pulse due to force developed by sudden impact of trigger over the material inside. Lighters: Gas Burner lighter and cigarette lighter utilizes piezoelectric effect.Mechanical stress analyzer: During construction of building, stress analyzer is used for columns, where the voltage produced due to stress is measured, and corresponding stress is calculated.To make it as a complete circuit, two faces are connected together and current is passed through it. In working system, the crystal acts like a tiny battery with a positive charge on one face and a negative charge on the opposite face. Piezoelectricity (also called the piezoelectric effect) is the presence of an electrical potential across the sides of a crystal when mechanical stress is applied by squeezing it.
Piezo is a Greek term signifying “press” or “squeeze”.
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