Patent ID: 9664587
Date: 2017-05-30
CPC Classifications: G01M,G01N

Claim:
1. A method for balancing a Computed Tomography (CT) gantry comprising the following steps: 1) obtaining a fluctuation chain of pulses generated in one revolution of the CT gantry and obtained when the CT gantry collects data; 2) obtaining an eccentric angle of a center of mass deviating from a rotation center according to the fluctuation chain, and calculating a magnitude of imbalance; and 3) adjusting weight at a weight counterbalancing position according to the eccentric angle and the magnitude of imbalance, to locate the center of mass at the rotation center; and wherein step 1) comprises: performing sampling once each time the gantry rotates by a constant angle, obtaining a curve of a pulse generated in each sampling, and connecting successively curves corresponding to respective angles in a rotational direction of the gantry to form the fluctuation chain.