How Ultrasonic Cleaning works

Direct and inverse piezo effect

Direct piezo effect:

Mechanical stresses caused by external force on piezoelectric bodies induce displacements of the electrical dipoles.
This results in an electric field that generates an electrical voltage. Inverse piezo effect.

Inverse piezo effect:

Applying an electrical voltage to unclamped piezoelectric components causes their geometric deformation.
Depending on the polarity of the applied voltage and the direction of polarization in the piezo, a targeted movement results.
If the applied voltage is alternating voltage, a cyclic change in the geometry is created, resulting in an oscillation.
Is the piezo element clamped, i.e. H. free deformation is prevented and mechanical tension is generated.

Ultrasonic Technology to prevent desposits and support cleaning

Mechanical vibrations in the ultrasonic range (16kHz to 1GHz) are generated using high-frequency voltage signals from ultrasonic generators
by using the inverse piezoelectric effect in the ultrasonic transducer. The coupling to the typically non-resonant structures of the parts to be
excited takes place via specially designed adapters. The active oscillation ensures local accelerations so that dirt is not deposited,
adhesions are dissolved and, in conjunction with liquids, cleaning effects based on cavitation are created.
Ultrasound can be used pulsating, intermittently or as a continuous sound.