Planar maglev positioning system
US7185590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2004 |
| Grant date | Mar 6, 2007 |
| Priority date | — |
| Expiry date | Mar 8, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02N1/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A six-degree-of-freedom magnetic levitation positioning system includes a levitated platform, six impelling coils disposed adjacent to the platform, and six permanent magnets attached to the platform such that each of the permanent magnets is adjacent to and magnetically aligned with a respective one of the impelling coils, whereby there are six magnet-coil sets. Among the six sets, three of the sets are maglev sets in which magnetic axes of the impelling coils are generally vertically aligned, and another three of the sets are horizontal impelling sets in which magnetic axes of the impelling coils are generallv horizontally aligned. The magnetic axes of the three horizontal impelling sets are all mutually non-parallel, so that elevation and tiltings of the platform can be actuated by adjusting the currents in coils of the three maglev sets, and translations and rotations about a vertical axis of the platform can be actuated by adjusting the currents in coils of the three horizontal impelling sets. Thus, motion in every degree of freedom (three rotations and three translations) is possible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.