Comparison between Diamagnetic Magnetic Force by Graphite and PG Disks and Levitation Rotation of Non-controlled Magnetic Levitation Motor.

Abstract

　The author made prototype an uncontrolled magnetic levitation motor using a permanent magnet and graphite. The author derived the equation for obtaining the diamagnetic magnetic force of isotropic graphite and anisotropic graphite. The calculated results by the formula well agreed with the measured values. Furthermore, it was found that the diamagnetic magnetic force distribution in the X axis direction of isotropic graphite and anisotropic graphite are different. This suggests that the diamagnetic magnetic force generation mechanism in the X axis direction is different.