The Effect of Physical Chemical Properties on Ultrasonic Performance

Successful ultrasonic cleaning processes utilize a combination of mechanical action provided by the formation and implosion of cavitation bubbles and  chemistry that dissolves and/or promotes the wetting and transfer of mechanical energy to dislodge the contaminants to be removed.  The interactions and effects of chemistry on the ultrasonic process obviously exist but are not well …

Ultrasonic Tank Squeal

If you work around ultrasonic cleaning tanks you have probably heard a tank “squeal.”  If you’ve never heard this, (1) consider yourself lucky and (2) be aware that a “squeal” is not the normal hissing sound associated with an operating ultrasonic tank but, rather, an extremely high amplitude sound at an audible frequency that can …

Pros and Cons of Tank Bonded vs. Immersible Ultrasonic Transducers

Note – Before we start, there is a nomenclature conundrum when it comes to the term “ultrasonic transducer.”  Through convention, transducer elements, the individual devices that produce ultrasonic vibrations (much like an individual radio speaker), are commonly called “transducers.”  A number of transducer elements working in parallel constitute a transducer array but may be called …

Cavitation Bubble Implosion Video!

After God knows how many years of looking at that one image of a cavitation bubble presented endlessly with different color variations etc. to “freshen it up” there has emerged some exciting new footage of actual cavitation bubble implosion!  Now, as a start, I don’t think these bubbles, at least the first ones, are the …

Stable vs. Transient Cavitation

I have talked about cavitation extensively in previous blogs.  But what I have neglected to address through an omission on my part is the fact that all cavitation does not produce the effect needed to enhance cleaning – namely, the catastrophic collapse of the cavitation bubble in implosion.  Before reading further, please take a minute …