Ultrasonic dispersion equipment, with its powerful cavitation effect, can efficiently break down agglomerated particles and uniformly disperse systems. During high-intensity operation, problems such as power reduction, abnormal noise, and probe damage may occur, leading to a decrease in dispersion efficiency or even experimental interruption. Mastering the scientific response methods to common problems and phenomena of ultrasonic dispersion equipment is the key to ensuring its efficient and stable operation.

Problem 1: Decreased output power and decreased dispersion effect
This is a common performance degradation. Check whether the ultrasonic probe (amplitude lever) is worn, corroded, or has a concave end face. Long term exposure to corrosive samples or no-load operation can accelerate probe wear and tear, requiring regular inspection and timely replacement. Confirm if the sample liquid level is appropriate - the probe tip should be immersed 1-2cm below the liquid level, increasing the load if it is too deep, and insufficient cavitation if it is too shallow. At the same time, check whether the connecting cables between the generator and the transducer are loose or damaged to ensure effective energy transmission.
Problem 2: The equipment operates with loud noise or severe vibration
Mostly due to no-load operation or load mismatch. It is strictly prohibited to start ultrasound in a liquid free state, otherwise it will instantly damage the piezoelectric ceramic plate. Check if the sample viscosity is too high or if the container material is too thick (such as thick walled glass), which may hinder energy transfer. A probe with matching power and a suitable container should be selected (thin-walled glass or titanium alloy cups are recommended). Ensure that the probe is vertically immersed to avoid tilting and colliding with the container wall.
Problem 3: The probe tip shows "saddle shaped" wear or breakage
This is typical cavitation corrosion and mechanical fatigue. To avoid long-term continuous high-power operation, it is recommended to use "pulse mode" (such as on for 5 seconds and off for 2 seconds) to reduce heat accumulation. For high hardness particles such as silicon dioxide and silicon carbide, power can be reduced or processing time can be shortened. If the probe is severely worn or broken, it must be replaced and should not be continued to be used to avoid contaminating the sample with fragments.
Question 4: Automatic protection shutdown for equipment overheating
The ultrasonic generator or transducer triggers protection when the temperature is too high. Check the cooling system - ensure that the cooling holes of the air-cooled equipment are unobstructed and the environment is well ventilated; Water cooling equipment needs to confirm that the cooling water circulation is normal and the water temperature is below 30 ℃. Avoid long-term continuous full load operation and set the work cycle reasonably. Regularly clean the dust on the surface of the equipment.
Problem 5: The sample splashes or produces a lot of foam
Mostly due to high ultrasound power or improper probe position. Reduce output power and use smaller diameter probes to increase energy density. Place the probe in the center of the container and avoid getting close to the liquid level. For systems that are prone to foaming, defoamers can be added or operated under an inert gas atmosphere.
Problem 6: Frequency drift or inability to start
Check if the power supply voltage is stable and avoid excessive fluctuations. Confirm whether the device is in self-test or standby mode. If repeated restarts are ineffective, it may be due to internal circuit faults in the generator and require professional repair.