Optimised Metal Strip Inspection

Micro-Epsilon has completely revised the design of its measurement system for metal strip. The new system for thickness and profile inspection provides a much larger measuring gap of 190 mm, almost three times larger than its predecessor. In addition, the system can now reliably measure corrugated and vibrating metal strip. Rather than using the previous point-type laser sensors, profile sensors are now installed, which measure significantly better on many different strip materials and which greatly increase the monitoring range. The system enables thickness measurements to an accuracy of 0.01 mm and is used for process stabilisation, quality assurance and documentation. Due to the use of a special high-tech light barrier, edge detection for warped strips is also possible. This enables robust width measurement with reliability. Individual strips can also be documented over the entire process. By replacing radiometric methods with optical measuring techniques, the system is completely wear-free and operates free of emissions. The measuring system for thickness and profile inspection can be used for strip up to 4 m wide and thicknesses between approx. 1 mm and 12 mm.

During the production process, the metal strip passes through the measuring gap of the system. During measurements, the measuring head constantly traverses across the strip, reliably capturing information about the thickness, profile and dimensions of the complete strip.