How To Prevent The Ceramic Plate On The Ultrasonic Transducer From Breaking?
May 27, 2024
1. Control mechanical vibration:
When using ultrasonic transducers, excessive mechanical vibration should be avoided as much as possible, as this can cause fatigue cracking or even fragmentation of ceramic sheets.
Choose appropriate equipment parameters and operating methods to reduce unnecessary vibrations.
2. Adjust frequency:
Excessive frequency can lead to an increase in the vibration amplitude of ceramic sheets, thereby increasing the degree of fatigue.
When using ultrasonic transducers, it is necessary to ensure that the operating frequency is within the range of the ceramic plate to avoid resonance effects that may cause the ceramic plate to rupture.
3. Control temperature:
High temperature can cause uneven expansion of ceramics and metals, leading to ceramic fragmentation.
Ensure that the ultrasonic transducer dissipates heat well during operation and avoids excessive temperature.
Avoid prolonged idle operation as it reduces heat dissipation and increases temperature.
Using appropriate materials and structures:
Choose ceramic materials with good seismic resistance, or consider using alternative materials.
In the design of transducers, appropriate damping measures are adopted, such as adding damping materials or using damping layers, to reduce the vibration energy generated by resonance effects.
4. Applying prestress:
In the design of transducers, applying appropriate prestress can enhance the stability of ceramic sheets and prevent them from breaking during high-speed vibration.
For example, using a horn shaped composite oscillator structure, all ceramic chips are clamped by front and rear metal cover plates and pre-stressed screws.
5. Pay attention to maintenance and inspection:
Regularly inspect the condition of the transducer and ceramic pieces, and replace or repair them in a timely manner if there are any abnormalities.
Regularly clean and maintain the equipment to ensure it is in good working condition.
Conduct reliability testing:
During the product development process, strict reliability testing and temperature cycling testing are conducted to verify whether the coupling between the transducer and the ceramic will cause rupture.
