Summary:
1. A doctoral student at the University of Wisconsin-Madison has developed a metamaterial for underwater acoustic manipulation, allowing objects to be moved and positioned underwater without direct contact.
2. The metamaterial features a unique structure that responds to sound waves, enabling precise manipulation of objects in water without physical touch.
3. This technology has the potential for various applications, including underwater robotics, remote surgery, and drug delivery inside the human body.
Article:
Dajun Zhang, a doctoral student at the University of Wisconsin-Madison, has pioneered a groundbreaking metamaterial for underwater acoustic manipulation. This innovative material allows for the movement and positioning of objects underwater without the need for direct physical contact. By leveraging a unique structure that responds to sound waves, Zhang has achieved precise manipulation capabilities that could revolutionize underwater work and open up new possibilities for applications in medicine and robotics.
The metamaterial developed by Zhang features a small sawtooth pattern on its surface, enabling adjacent speakers to exert different forces based on how sound waves reflect off it. This intricate design allows for the accurate pushing and rotating of objects attached to the metamaterial, offering a new level of control in underwater environments. Not only does this technology have the potential to simplify underwater tasks, but it could also be utilized for applications like remote surgery and drug delivery within the human body.
Zhang’s work is not without its challenges, as manufacturing underwater metamaterials with the necessary properties for object manipulation can be a complex and expensive process. However, Zhang has devised a new fabrication method that is cost-effective, easy to implement, and achieves high resolution and large acoustic impedance contrast with water. Through tests involving floating and submerged objects, Zhang has demonstrated the effectiveness of his metamaterial in pushing, pulling, and rotating objects underwater, including the manipulation of submerged objects in three dimensions.
Looking ahead, Zhang plans to further refine his metamaterial technology, aiming to develop a smaller and more flexible metamaterial patch. With the hope of expanding the use of this technology in medicine and underwater robotics, Zhang envisions a future where acoustic metamaterials and metasurfaces can be utilized for remote manipulation, levitation, and actuation in underwater and in-body applications. The potential of this research opens up exciting possibilities for the field of underwater acoustic metamaterials and remote manipulation, paving the way for new advancements in various industries.
