Measuring profile section, esp. width and height - evaluating profile section contours from detected light reflected during successive illuminations

摘要

The profile section (1) is successively illuminated by a number of light sources (3), and the reflections are detected by a camera. Each illumination by the camera results in a number of data sets contg. information about the contours of the profile section and shadows. The profile is identified from the contours of the first dimension, i.e. the width, and the contours of the shadows of the second dimension, i.e. the height. The data sets are combined into a unit by an algorithm in a computer to enable profile detection. USE/ADVANTAGE - For many applications involving measurement of multidimensional bodies. Increased accuracy.