Glosario de la tecnología de equilibrado

Parasitic mass

Components with mass of a balancing machine, which are excited to vibrate by the unbalance forces of the rotor to be balanced.

Perfectly balanced rotor

Ideal rotor with no unbalance.

Permanent calibration

Calibration performed once, which then is valid for all rotors within the weight- and speed-range of a hard-bearing balancing machine.

Phantom unbalance indication

Display of unbalance, which is not caused by unbalance.

Piezoelectric material

Certain class of rigid ceramic material that produces electric charge when mechanical pressure is applied to the material. Used with force sensors in balancing machines to sense the effect of rotor unbalance.

Plane separation

Capacity of a balancing machine to exactly distribute the unbalance for the correction planes and to minimize the cross-effect.

Plane transposition

Computation of the unbalance with reference to other radial rotor planes.

Polar correction

Correction of the amount of unbalance in a balancing plane at one single angular position.

Polar plot

Amount and angle of vibration or unbalance values obtained at variable speed presented with their X- and Y-values on a circular grid.

Practical correction unit

Display of the amount of unbalance for a given radius directly for example in mm drilling depth, number of washers etc..

Principal axis

Depending on the unbalance condition of a rigid rotor the principal axis is offset and inclined with respect to the design axis.

Progressive balancing

Method to balance a rotor, which consists of several components that can be dismounted. Unbalance is corrected at the component which has been mounted at last until the rotor is complete.