Method for determination of size and location of unbalanced mass of rotating body, involves moving body having unbalanced mass in rotational movement and measuring rotational frequency of body during rotational movement of body

摘要

The method involves moving the body (2) having the unbalanced mass in a rotational movement and measuring the rotational frequency of the body during the rotational movement of the body by vibrations inducing the unbalanced mass. The measurement signals containing the measurement results are generated and are fed to signal processing. A model based estimate calculation is carried out for signal processing using amplitude and phase estimation-algorithm.