Measuring rotating body vibration vector parameters - using markers consisting of sectored arcs of coaxial marker discs

摘要

The arrangement is for measuring rotating body vibration vector parameters and is primarily applicable in systems for dynamic balancing of rotating parts. Its measurement accuracy is enhanced compared to conventional arrangements as a result of the construction of the marking device, and its functional range is wider than those of conventional arrangements. The arrangement contains a number (K-1) of additional marking elements (4') coaxial with and attached rigidly to the rotating body. A further number 2(K-1) of reference signal transducers is arranged in pairs at right angles to each other in a plane perpendicular to the rotation axis, and close to the marking elements. The marking elements are arranged on K discs in a number Kn of peripheral sectors. Each sector contains a marker whose length is a fraction of 1/2(1+Sin2.Pi.i/n).