68KHz 60W PZT4 High Frequency diy Ultrasonic Oscillator Transducer For Cleaning Machine   

The mechanism of ultrasonic cleaning is to make use of the physical effects such as cavitation, radiation pressure and sound flow in the cleaning liquid. It can exfoliate the machinery produced by the dirt on the cleaning parts, and can also promote the chemical reaction between the cleaning liquid and the dirt, so as to achieve the purpose of cleaning the object. The frequency of the ultrasonic cleaning machine can be selected by 10~500 kHz according to the size and purpose of the cleaning material, generally more than 20~50 kHz. With the increase of the frequency of ultrasonic transducer, Langerhans oscillator, longitudinal oscillator and thickness oscillator can be used. In the miniaturization aspect, radial vibration and flexural vibration are also adopted. Ultrasonic cleaning has become more and more widely used in various industries, agriculture, household equipment, electronics, automobile, rubber, printing, aircraft, food, hospital and medical research.

Ultrasonic oscillator principle:
1. The piezoelectric element and the internal electrode in the ultrasonic vibrator are alternately stacked, and the external electrode is in electrical communication with the internal electrode;
The ultrasonic vibrator includes: an internal electrode group, which is roughly divided into four parts along a second direction and a third direction orthogonal to the stacking direction as the first direction; the first external electrode group and the second external electrode group are respectively separated from the internal The electrode group is turned on; by applying an alternating voltage to the first external electrode group and the second external electrode group, a longitudinal vibration mode in which the main vibration occurs in the second direction and the main vibration in the third direction are simultaneously excited. The bending vibration mode that occurs, which produces ultrasonic elliptical vibration;
The ultrasonic vibrator has a conductive film for electrode connection, which is formed along a plane perpendicular to the laminating direction, and the predetermined external electrodes of the first external electrode group and the predetermined external electrodes of the second external electrode group are respectively formed. The external electrodes are electrically connected. The device that realizes the mutual conversion of electrical energy and acoustic energy by using the piezoelectric effect is called a piezoelectric transducer. The ultrasonic transducer provided by our company adopts self-produced high-quality piezoelectric ceramic components, which are carefully designed, processed and tested. They are bolts. Tightening type can generate stable ultrasonic waves even when the load changes. It has the characteristics of large amplitude, high electro-acoustic conversion rate, small heat generation, high reliability, and good consistency.

The transducer uses different piezoelectric materials to explain that:
The black chip is P4 series, which is a medium power emitting material with dual transmitting and receiving characteristics.
With low dielectric loss and high mechanical quality factor, it is mainly used in ultrasonic cleaning, ultrasonic atomization and so on.
The Yellow chip is P8 series, which is a high-power emission material with high mechanical quality factor.
Good stability, very low dielectric loss, especially suitable for making high-power ultrasonic transducers. Widely used in
Ultrasonic welding, ultrasonic emulsification, ultrasonic polishing, ultrasonic cleaning and so on.

Main Features:

• High Q value.
• Large amplitude.
• High conversion frequency, low heat.
• Output is stable.
• Strict quality control.

1.High efficiency : high quality mechine, high electro-acoustic conversion efficiency at the resonant frequencies.
2.Large amplitude : computer optimized structure, high vibration ratio , large amplitude front cover.
3.High power: In the influence of pre-stressed screw, piezoelectric ceramic energy can achieve to the most.
4.Heat-resistance: small resonant impedance, wide temperature range.

68KHz 60W PZT4 High Frequency diy Ultrasonic Oscillator Transducer For Cleaning Machine