Patent ID: 9057650
Filing Date: 2015-06-16
Classification: G01L,G01M

Abstract:
1. Method for correcting the empirically determined permanent calibration of a force-measuring balancing machine for measuring imbalance of a rotor rotatably mounted in the balancing machine in bearing supports having fitted sensing elements, the rotor having a rotor mass, the bearing supports having bearing support mass co-oscillating with the rotor mass, a selected stiffness, and rotor bearings having a selected spacing, comprising the steps of calculating resonant frequencies of the rotor to be balanced, in a translatory direction corresponding to a measuring direction of the sensing elements and in a rotational direction about an axis which is perpendicular to the measuring direction and to a rotational axis of the rotor, from the rotor mass of the rotor to be balanced, the co-oscillating bearing support mass of the bearing supports, the stiffness of the bearing supports and the spacing of the rotor bearings of the bearing supports, and introducing to the permanent calibration a frequency response calculated from the resonant frequencies and the rotor frequency.