Workpiece testing method, involves determining movement trajectory on basis of comparison of measuring signals received at position with respect to initial position, at which volume area of workpiece is detected

摘要

The method involves determining a movement trajectory on the basis of comparison of measuring signals received at a position (2) with respect to an initial position, at which a volume area of a workpiece (1) is detected, where the position (2) represents another volume area. The movement trajectory is determined by shifting a measuring sensor (4) along a workpiece surface (3) in the position (2). The volume areas partially overlap, and a position relative to the initial position is determined on the upper surface of the work piece based on the movement trajectory.