Property of Ultrasonic Power Corporation -
© 2017
Publication #170119-jsw
11
3. Principles of Operation
The ultrasonic generator transforms AC line power to a specified signal (rated in kHz) that drives
a piezoelectric converter/ transducer. This electrical signal is converted by the transducer to a
mechanical vibration due to the characteristics of the internal piezoelectric crystals.
The vibrations are transferred from the piezoelectric converters to the high grade stainless steel
tank via the "VIBRA-Bar"
®
bonded directly to the tank. This vibration is what powers the
ultrasonic cleaning process.
The Vibrations cause small vacuum cavities that are formed. These vacuum cavities grow in size
with each vibration until they reach a critical point where can no longer hold their size thus
collapsing, or imploding, during compression. This continuing rapid process, called cavitation,
is responsible for the scrubbing effect which produces ultrasonic cleaning.
