Presentation Information
[11p-E215-7]Diamagnetic Levitation of a 1 mm Water Droplet Achieved Using Only Permanent Magnets
〇Yasuhiro Ikezoe1, Hayato Toeda1 (1.NIT)
Keywords:
Diamagnetic levitation,Permanent magnet,Water
Diamagnetic levitation devices using permanent magnets are inexpensive to fabricate and can maintain levitation in a static environment at room temperature for extended periods. In addition, they require no power supply during operation and therefore incur virtually no operating costs. However, most previous studies on diamagnetic levitation using permanent magnets have focused on graphite because of its exceptionally large diamagnetic susceptibility. For most other diamagnetic materials, levitation remains challenging because of their much weaker diamagnetism.
Recently, we developed a simple diamagnetic levitation device consisting of two pairs of cuboid NdFeB permanent magnets assembled using their mutual attractive force and succeeded in levitating a water droplet approximately 0.3 mm in diameter. In the present study, we investigated a Halbach-type magnet arrangement aiming to develop a system capable of levitating larger water droplets. As a result, we successfully levitated water droplets larger than 1 mm in diameter.
Recently, we developed a simple diamagnetic levitation device consisting of two pairs of cuboid NdFeB permanent magnets assembled using their mutual attractive force and succeeded in levitating a water droplet approximately 0.3 mm in diameter. In the present study, we investigated a Halbach-type magnet arrangement aiming to develop a system capable of levitating larger water droplets. As a result, we successfully levitated water droplets larger than 1 mm in diameter.