How do we test the efficiency of our ultrasonics?
Testing the efficiency of ultrasonic cavitation in any system is notoriously difficult as there are many factors which affect the performance of ultrasonic transducers ranging from fluid temperature, the type of chemistry used, the cleanliness of the fluid, the standard of water used, whether the solution has de-gassed, even atmospheric conditions to name but a few. Any test carried out is always subjective.
We would recommend two methods of testing – one is purely observation – is there activity in the tank? You should see a rippling effect on the surface. Can you hear a distinct “fizz” of the fluid?
The second is a foil test where you take thin aluminium foil (about 100mm square) and lower it vertically into the tank so that at least 75mm is submerged. The foil should be punctured within 15 – 30 seconds. If not then you need to review.
Has there been a reduction in the overall performance of the system? i.e. are the parts no longer coming out clean? You may also wish to consider periodic cleanliness tests of the cleaned product as this is the only real test that matters.
Click the ultrasonic foil test image below for a more detailed image: