Til innholdet

Ultrasonic antifouling

Ultrasonic antifouling is meant to reduce fouling on underwater structures, through using small-scale acoustic cavitation to destroy and discourage attachment of algae and other single-celled organisms.

Principle

Ultrasonic antifouling is based on destroying the micro fouling at the cellular level. By rupturing the cell walls of the organisms the system is supposed to prevent the basic elements of the fouling from attaching to the hull.

Basically, the system generates gas bubbles in water. When the bubbles collapse, the local pressure should prevent marine growth.

Main components

POWER CONTROL: Provides specific low powered ultrasonic frequencies.
TRANSDUCERS: Emitting the ultrasonic waves.

Ultrasonic antifouling equipment
Ultrasonic antifouling equipment

Methods

HARD CAVITATION: High intensity (>50 W). High and local pressure.
SOFT CAVITATION: Lower intensity. Generates conditions which prevent marine growth.

Will it really work?

Perhaps you have seen the adds, where the maker claims this scientifically named system contains a breakthrough combination of ultrasonic waves and multiple frequencies that result in a micro jet action that creates a cleaning effect on the hulls surface below the waterline

To our experience, ultrasonic systems rarely work as promised, at least when installed singularily – with no support from other active sysems. To our experience, the best effect comes in conjunction with an electrolytic copper based antifouling system.