Fisa develops and manufactures its own ultrasonic generators and transducers.
| Under the action of a signal emitted by the generator, the ultrasonic transducer that is mounted on the stainless steel tank creates an ultrasonic wave that propagates into the liquid. |
| This wave creates alternate positive and negative pressure waves. During the negative pressure phase, tiny bubbles appear in the liquid, this is the phenomenon called cavitation. |
| During the pressure phases, the bubbles implode when they touch the surface of the immersed parts, thus releasing the energy that created them. This mechanical energy increases the effectiveness of the chemical action of the cleaning solution. |
Under the effect of the magnetic field produced by a coil, it vibrates and generates an ultrasonic wave with high and homogenous power density. Optimum working frequency is 20 kHz.
When supplied with electricity, the ceramics warp and transmit their energy to the metallic masses that generate the ultrasonic wave.
Depending on the type of piezoelectric transducers that are assembled, it is possible to obtain single frequency (22, 25 or 38 kHz) or multiple frequencies (from 40 to 95 kHz or from 60 to 130 kHz, depending on the combination of the different types of signal).
 Single frequency Piezosonic Transducers |
 Single frequency Intersonic Transducers |
Multifrequency Multisonic Transducers