Magnetic bearing system
US4438987A · kind A · utility
14Cited by
8References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1979 |
| Grant date | Mar 27, 1984 |
| Priority date | — |
| Expiry date | Mar 5, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3572
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a magnetic bearing system, wherein the gap between relatively moveable elements is controlled by variation of magnetic force therebetween, light is directed from one of the members onto the other member, and reflected back, the reflected light being converted to an electrical signal. The magnetic force between the members is controlled as a direct function of the magnitude of the reflected light. The optical system may include optical fibers for directing the light, and markings may also be provided on the other member to enable determination of relative speed between the members in a further transducing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.