How does the ultrasonic cleaner vibrator determine the quality?

Ultrasonic cleaning machines are now used in people's lives, washing dishes, industrial cleaning, etc. Ultrasonic cleaning greatly reduces labor costs, but when people buy ultrasonic cleaning machines, the performance of ultrasonic cleaning machines.There are still some ambiguous knowledge: the larger power has the more number of vibrators, the better is the performance, the higher is the value, and even the price. This kind of understanding is not comprehensive. As mentioned above, the vibrator is too dense. The higher the power density, the better the cleaning effect is not good, and the slotted brother is easy to cavitation. On the other hand, the power of the ultrasonic cleaning machine is mostly electric power instead of sound power. If the standard refers to the power frequency, the ultrasonic wave. The quality of the cleaning machine product should be judged by efficiency. If the efficiency is low, the power consumption is large in the same cleaning effect, which increases the user's cost.

A few ultrasonic cleaning machines distribute the piezo ceramic ring transducer stuck to the bottom or wall of the cleaning tank too densely. One array is arranged next to each other. The electric power intensity of the transducer reaches 2-3W per square centimeter. The cavitation corrosion of the surface of the stainless steel plate (the surface in contact with the cleaning liquid) shortens the service life and on the other hand, the sound intensity is too high. Large bubbles will be generated near the surface of the steel sheet to increase the sound transmission loss, and the cleaning effect is weakened away from the transducer.

One of the methods for judging the bonding quality of the washing machine produced is to measure the temperature rise of the transducer after the tank is cleaned and the machine is turned on for a period of time. If the temperature rise of a transducer in a large number of transducers is particularly fast, the surface of the ultrasonic vibrator may not bond well. Because the sound radiation is not good at this time, most of the electric energy is consumed on the ultrasonic cleaning transducer and generates heat. Another method is to measure the electrical impedance of the vibrator one by one under small signal conditions to determine the bonding quality.