The ultrasonic transducer is the heart of the ultrasonic welding machine, just like the engine of a car, it converts the high-frequency electric energy or magnetic energy output by the ultrasonic generator into mechanical vibration of the same frequency.

It mainly includes shell, acoustic window (matching layer), piezoelectric ceramic disc transducer, backing, lead-out cable, receiver and other parts.

Among them, the piezoelectric ceramic disc transducer plays the same role as the general transducer, which is mainly used to transmit and receive ultrasonic waves; and above the piezoelectric ceramic disc transducer is the receiver, which is mainly led by the cable , Transducer, metal ring and rubber gasket, used as an ultrasonic receiver, receiving the Doppler callback signal generated outside the frequency band of the piezoelectric ceramic disc transducer.

That is, piezoelectric ceramics that resonate at ultrasonic frequencies. The piezoelectric effect of the material converts electrical signals into mechanical vibrations. Ultrasonic transducer is a kind of energy conversion device. Its function is to convert the input electric power into mechanical power (ultrasound) and then transmit it out. It consumes a small part of the power by itself. Type: It can be divided into piezoelectric transducer, sandwich transducer, cylindrical transducer, inverted horn transducer and so on.