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Description:

Piezoelectric ceramics are a kind of functional ceramics. The so-called functional ceramics are ceramics that are sensitive to light, electricity, and other physical quantities. Piezoelectric ceramics are more sensitive to light and pressure. When an external force is applied to the piezoelectric ceramics, charges will be generated on the surface of the piezoelectric ceramics. This is the positive piezoelectric effect of piezoelectric ceramics, which is a process of converting mechanical energy into electrical energy; When an electric field is applied to the ceramic, the piezoelectric ceramic will undergo a slight deformation. This is the inverse piezoelectric effect of the piezoelectric ceramic, which is a process of converting electrical energy into mechanical energy. Using the inverse piezoelectric effect, high-frequency voltage can be converted into high-frequency vibration, thereby generating ultrasonic waves.

The most mature and reliable piezoelectric crystal is a device that realizes the mutual conversion of electric energy and sound energy by the piezoelectric effect, which is called a piezoelectric transducer. The piezoelectric effect converts electrical signals into mechanical vibrations. This kind of transducer has high electro-acoustic conversion efficiency, cheap raw materials, convenient production, and is not easy to age. Commonly used materials are quartz crystal, barium titanate and lead zirconate titanate.

Applications:

Mainly applicable to ultrasonic plastic welding machine, ultrasonic metal welding machine, ultrasonic cleaning machine, gas camera, trichlorine machine, etc.

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