講演情報
[22a-P01-3]シンプルな磁石配置を利用した反磁性磁気浮上
〇(M1)内藤 友哉1、本柳 茉倫1、菅谷 将之1、池添 泰弘1 (1.日工大)
キーワード：
磁気浮上
The levitation technologies of materials enable container-less material synthesis processes and are expected to be applied to development of novel materials and experiments in fundamental thermodynamics. Diamagnetic levitation is also known as one of those levitation technologies, however, it requires the use of large magnets, such as hybrid superconducting magnets, to generate extremely strong magnetic fields.
Recently, we reported diamagnetic levitation of materials such as water, sodium chloride, and alumina, by only using commercially available permanent magnets. The system consists of very precisely aligned magnets and needs specifically designed fixtures. In this paper, we report a new magnetic levitation system in which permanent magnets were simply aligned by their own magnetic forces.
The new systems consist of four rectangular magnets whose sizes are in the range of 1 to 10 mm in width, depth, and height. The simulation result of magnetic field between two magnets is similar to our previous simulation results and clearly shows a concave field which is essential to realize magnetic levitation. In the experiment, to make a water ball, microspheres of water generated by an ultrasonic atomizer were introduced through silicone tube to the experimental space. The water ball was grown to about 274 micrometers by collision of these microspheres until it touched the rim of a magnet.
Recently, we reported diamagnetic levitation of materials such as water, sodium chloride, and alumina, by only using commercially available permanent magnets. The system consists of very precisely aligned magnets and needs specifically designed fixtures. In this paper, we report a new magnetic levitation system in which permanent magnets were simply aligned by their own magnetic forces.
The new systems consist of four rectangular magnets whose sizes are in the range of 1 to 10 mm in width, depth, and height. The simulation result of magnetic field between two magnets is similar to our previous simulation results and clearly shows a concave field which is essential to realize magnetic levitation. In the experiment, to make a water ball, microspheres of water generated by an ultrasonic atomizer were introduced through silicone tube to the experimental space. The water ball was grown to about 274 micrometers by collision of these microspheres until it touched the rim of a magnet.