Abstract
This paper reports on a new concept of magnetic levitation method using single pole of a controlled electromagnet consisting of a cylindrical electromagnet and a cylindrical permanent magnet. As the flux flows from the electromagnet along an open-loop magnetic circuit, the attenuation of the attractive force to the gap distance is relatively small. In addition, the permanent magnet acts as a bias flux, therefore, this magnetic levitation method can enlarge the air-gap distance between the controlled electromagnet and the floating object. The overall attractive force is modeled by summation of forces of both the electromagnet and the permanent magnet. A stable levitation condition has been achieved by means of a 0.33 A control current and a 42mm air-gap between the electromagnet and a 0.5g permanent magnet.
| Translated title of the contribution | Trial of a Magnetic Levitation System with a Long Air-Gap Using a Cylindrical Electromagnet |
|---|---|
| Original language | Japanese |
| Pages (from-to) | 334-339 |
| Number of pages | 6 |
| Journal | Journal of the Japan Society of Applied Electromagnetics and Mechanics |
| Volume | 13 |
| Issue number | 4 |
| State | Published - 2005/12 |