Piezoelectric Ceramic Plate

Piezoelectric Ceramic Plate

Main uses of piezoelectric ceramics

1. Sound converter Sound converter is one of the most common applications. Piezoelectric ceramics can be used as sound converters such as pickups, microphones, earphones, buzzers, ultrasonic depth probes, sonar, and ultrasonic flaw detectors of materials. For example, the buzzer on children’s toys is a current that vibrates through the inverse piezoelectric effect of piezoelectric ceramics and emits a sound that can be heard by human ears. Piezoelectric ceramics can generate vibrations of different frequencies through the control of electronic circuits, thereby emitting a variety of different sounds. For example, electronic music greeting cards convert AC audio electrical signals into sound signals through the inverse piezoelectric effect.

2. Piezoelectric detonator Since the British army invented the tank in World War I and used it in the French Somme battle for the first time and severely damaged the German army, the tank has shown its skills in many battles. However, in the 1960s and 1970s, tanks lost their former glory due to the invention of anti-tank weapons. When the armor-piercing projectile fired by the anti-tank gun touches the tank, it will explode immediately, blasting the tank to pieces. This is because the warhead is equipped with piezoelectric ceramics, which can transform the powerful mechanical force when it collides into instantaneous high voltage, which bursts out sparks and detonates explosives.