Property of Ultrasonic Power Corporation -
© 2022
Publication Number UPC220509-002
20
2. Principles of Operation
2.1 General
Ultrasonic cleaning systems employ high frequency, mechanical vibrations transmitted
into and through a suitable cleaning liquid where the cleaning action takes place.
Ultrasonic vibrations are similar to audible sound, but the frequencies used are
generally above a level that can be heard (>18 kHz). Since sound is a compression
wave, the action of this high frequency energy in a liquid may be considered as the
rapid generation and violent collapse of minute bubbles. Countless small but intense
impacts erode surface soil from immersed parts. This action, known as cavitation, wears
away surface contamination.
An ultrasonic cleaning system consists of the following components:
1. An ultrasonic generator capable of producing high frequency electrical energy.
Ultrasonic Power Corporation utilizes our 5300/5400 series generators.
2. Vibra-bar
®
transducer technology to convert electrical energy received from the
generator into mechanical energy.
a. Transducers fall into two main classes: piezoelectric (electro strictive) and
magneto strictive. In the first instance, a material changing dimensions in
the presence of an electric field is utilized; in the second instance, the
material is influenced by a magnetic field (causes it to vibrate). Ultrasonic
Power Corporation uses the piezoelectric (electro strictive) transducers
with its generators.
3. A tank to contain the cleaning liquid (water-detergent mix) and into which the
mechanical (ultrasonic) energy is transmitted by the transducers.
a. Use of a suitable detergent is important because the liquid that transmits
the energy from the transducers also participates in the cleaning process:
(1) the mechanical action (cavitation), and (2) by solvent action, physical
wetting or chemical attack on surface soil.
4. The heater pads are affixed to the sides of the tank. The heater controls are
located on the control panel.
Содержание BT H Series
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