Nowadays, levitation of objects with magnets is not a remarkable feat. We have not seen so many sonic levitation projects.However, Japanese engineers have a new method Lift objects Use sound. The process is not completely reliable yet, but it may lead to better methods in the future. You can watch a video about this work below.
The manipulation of very small items by laser or acoustics is not new. However, the current method has great limitations. This new method uses an array of hemispherical ultrasound transducers.
By controlling the amplitude and phase of each transducer, acoustic traps are formed and can pick up 3 mm polystyrene balls without direct contact.
There are several reasons for contactless operation of objects, the most important of which is circuit assembly. This type of powerful technology can also add a new dimension to additive manufacturing.
Of course, there is still a long way to go from 3mm polystyrene balls to surface mount components. However, you must admit that it is worth seeing the components just floating in the air to their final resting position.
It’s not that we haven’t seen sonic levitation before. Magnetic levitation It is often easier, but there are some limitations.