Device and method for a quality test of a body

摘要

A surface of a body includes a structure bounded by edges and a substantially edge-free unevenness. The structure is considered a quality impairment and the unevenness a potential quality impairment. A device includes a means for generating a height representation of the surface including the structure and the unevenness. A means for calculating a variation representation calculates the variation for every point of the height so that a high variation is obtained at a boundary of the structure and a low variation is obtained at a boundary of the unevenness. A means for detecting regions that potentially affect quality detects when a variation magnitude is smaller than a predetermined variation threshold value. These regions are examined to exclude uncritical regions and to determine the actual number of regions that affect quality. Quality control is performed on vehicle tires having structures such as inscriptions, and which also have bulges or constrictions that are substantially edge-free and uneven.