| 摘要 |
A method and related system for measuring rotor unbalance comprises rotating a rotor about an axis at a range of rotating speeds; generating a reference signal indicative of the instantaneous rotational frequency of the rotor; detecting the vibration of the rotor while the rotator is rotating, and generating a vibration signal; filtering the vibration signal, using the reference signal, to provide a synchronous vibration signal having a frequency equal to the instantaneous rotational frequency of the rotor; recording a vibration vector, the vibration vector comprising amplitude and phase values for the synchronous vibration signal; and measuring rotor unbalance based upon the vibration vector. Measurement accuracy can be improved by recording vibration vectors for a plurality of rotations of the rotor, and determining an average vibration vector. Methods and systems for detecting a rotor anomaly are also disclosed.
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