Method for determining current eccentricity of rotating rotor and method of diagnostics of eccentricity of rotating rotor
US9593998B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2012 |
| Grant date | Mar 14, 2017 |
| Priority date | — |
| Expiry date | Dec 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01H1/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method is provided for determining current eccentricity of a rotating rotor which is equipped with a phase marker scanned at constant speed of rotation up to 500 rpm by a sensor of a phase marker at the point of the phase marker, and outside of the phase marker by at least one sensor of relative rotor vibrations, while after digitizing the signals of the sensors, estimates current position of the phasor of the 1st harmonic component of signal of the sensor of relative rotor vibrations in the complex plane, which is subsequently compared to a reference position of the phasor of the 1st harmonic component, which has been determined in advance, whereas the variation vector of the phasors is an image of eccentricity of the rotor. Further, a method of diagnostics of eccentricity of a rotating rotor is based on this method for determining current eccentricity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.