Eccentricity is the offset between the center of rotation and the geometric centerline of e.g. a pulley or an engine. The largest vibrational component will be at the 1st harmonic of the eccentric rotating part. Example of an eccentric pulley. The center of rotation is offset from the geometr...
The eccentricity error is mainly the measurement error of the distance from the center of the GPS receiver antenna to the point where the laser beam is emitted on the scanning mirror.2. Placement angle error The error generated when the instrument is installed mainly refers to the system error...