Patent ID: 6209396
Filing Date: 2001-04-03
Classification: G01H

Abstract:
A method for contact-free, optical displacement and/or vibration measurement of an object (3) by means of at least one interferometer (1) with at least one laser, at least one control unit which guides the laser beam to a plurality of points of the object (3) to be measured so that said object is scanned by the laser beam, and at least one output unit (5) for the high-resolution display of the measurement results, wherein, for a single scan, the measurement points are selectively positioned on the object (3) to be measured, individually and/or in at least one grid adaptable in its contour, in different groups of measuring points, the measuring points within each group to be analyzed in correlation with the other measuring points in the group, whereby the groups of measuring points are classified in different categories based on geometrical or vibrational response characteristics and are analyzed as a function of the category to which they are assigned.