Anti bio-fouling

Biofouling

• wikipedia

Anti Biofouling

• 4 Types of Anti-fouling Systems Used on Board Ships to Prevent Marine Growth

The main types of preventive measures used on ships are:
1.   Electrolytic system
2.   Chemical dosing
3.   Ultrasonic system
4.   Electro-chlorination

• An autonomous drifting buoy system for long term pCO2 observation
• Electrolysis-based anti-biofouling system keeps hulls clean
• Marine Anti-Fouling Method Shakes Off the Barnacles
• SONIC SHIELD

Silicon chip magazine

• By Led Simson and John Clarke
• Ultrasonic Anti-Fouling Unit For Boats Silicon-Chip Sept-2010
• Ultrasonic Anti-Fouling Unit For Boats Silicon-Chip Nov-2010
• Ultrasonic Antifouling Kit for Boats, JAYCAR(Australia) $249.00
• Creating an ultrasonic wave at different frequencies ARDUINO FORUM

EPE Everyday Practical Electronics Magazine

• EPE 2012

• By Led Simson and John Clarke

• September 2012 Issue: Ultrasonic Anti-fouling for boats (Part 1)
• October 2012 Issue: Ultrasonic Anti-fouling for boats (Part 2)

• 50W 40kHz Ultrasonic transducer as used in Silicon Chip projects such as the ultrasonic cleaner and boat antifouling

Specifications:
• Static capacitance: 3000pF
• Resonant frequency: 40kHz
• Bandwidth: 3.9kHz
• Impedance: 15 ohms
• Insulated impedance: 1000Mohms
• Power: 50W

• AU5556 DATASHEET
• 40KHz 60W Ultrasonic Cleaning Transducer(pzt4) Beijing Ultrasonic at $7

Commercial Ultrasonic anti biofouling

• 4 Channel Electronic Antifouling Unit for Boat, EBAY AU$1199
• Ultrasonic Antifouling Hull Transducer – 50W
• Testing Ultrasonic Antifouling at Sail-magazine