Online Thickness and Profile Measurement for Flat Products
A wide variety of flat products such as boards (e.g. mineral and particle boards) or sheets (e.g. rolled sheet metal, strips and slab ingots) frequently require continuous measurement of their surface profiles directly in the manufacturing process. The data obtained can be used to inspect quality as well as to control the particular process.
Point measuring systems with fixed measuring paths or oscillating systems are often used. Radiometric or point measuring laser ranging sensors are also widely used. Such systems are only cost effective when measurements large widths have to be scanned. Solutions with cascaded laser light-sectioning sensors that scan linearly furnish an alternative.