Unstable vibration prevention apparatus for magnetic bearing system
US4885491A · kind A · utility
23Cited by
5References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 14, 1988 |
| Grant date | Dec 5, 1989 |
| Priority date | — |
| Expiry date | Jun 14, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C32/0487
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An active type magnetic bearing system includes magnetic bearings for suspending a rotary body to permit it to rotate about its rotational axis. A control system supplies the magnetic bearings with signals to control the radial position of the rotary body, and comprises displacement detecting circuits for detecting any displacement of the radial position of the rotary body and a control circuit for producing a control signal which serves to suppress any unstable vibration of the rotary body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.