Device for compensating synchronous disturbances in the magnetic suspension of a rotor
US4121143A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1976 |
| Grant date | Oct 17, 1978 |
| Priority date | — |
| Expiry date | Dec 17, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1275
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device is disclosed for compensating synchronous disturbances in the magnetic suspension system of a rotor which is supported by a radial electromagnetic bearing and which has means associated therewith for detecting the radial position of the rotor, comprising a servo-circuit for connection between the detecting means and windings of the electromagnetic bearing and including a circuit for the control of the current supply to the windings in response to signals from the detecting means to keep the rotor in a pre-determined radial position. The servo-circuit is provided with means for filtering the signals supplied by the detecting means between the latter and the control circuit, the filtering means having at least one band rejection filter centered on a frequency which is a direct function of the speed of rotation of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.