Device for compensating geometrical defects in the ring of a radial detector of the active magnetic suspension of a rotor
US4583031A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 1985 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | Mar 20, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2300/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
For compensating the geometrical defects of the annular armature of a radial position detector slaving an active radial magnetic bearing, a reference rotor having a small diameter is co-axially mounted within the rotor supporting the annular armature. The rotor supporting the annular armature and the reference rotor are both rotated in synchronism while a reference surface of the reference rotor is sensed by an additional radial position detector. A plurality of data representing the geometrical defects of the annular armature as a function of the angular position of the rotor are derived from the output of the additional radial position detector and stored in a memory to be applied to a compensation circuit linked with the radial position detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.