Ultrasonic Radiators Tailored by Acoustic Black Holes for Airborne Ultrasonic Applications

Opportunity

Airborne ultrasound tech plays a crucial role in industrial processes, including additive manufacturing ultrasound, ultrasonic levitation systems, dehydration, defoaming, dense gas extraction and aerosol agglomeration. To meet demands of these applications, radiators exhibit high-performance vibro-acoustic characteristics, generating both strong vibrations and powerful ultrasonic fields.  

This innovation achieves superior acoustic wave trapping tech by incorporating acoustic black hole ultrasound profiles that trap and focus in-solid ultrasonic waves. Compared to conventional designs, these industrial ultrasound radiators produce higher vibration outputs, making them ideal for energy-efficient and cost-effective ultrasonic applications. 

Technology

These ultrasonic radiators are available in round and rectangular configurations, tailored from originally flat plate structures. When in-plate ultrasonic waves propagate through the radiator plates, they experience trapping and focusing at the tips of acoustic black hole profiles. This results in highly concentrated ultrasonic waves, which are then radiated into the air, delivering enhanced performance in airborne ultrasound tech. The radiators can be used in both airborne and liquid-phase applications. 

Applications & Advantages

Applications: 

• Additive manufacturing ultrasound for precision processing. 
• Ultrasonic levitation systems for contact-free object manipulation.
• Ultrasound dehydration systems for efficient moisture removal.
• Aerosol agglomeration and gas extraction for industrial applications. 

Advantages: 

• Generates stronger vibrations compared to conventional flat radiators. 
• Enhances airborne ultrasonic field strength for high-performance applications.
• Reduces operational costs, energy consumption and design cycle time.
• Extends service life through optimised acoustic black hole profiles.