Web Length and Width Measurement

Widths of webs, tapes and wrapping goods are usually measured by hand in random samples, because touching measuring devices damage the products or because non-contact measuring devices are too costly. … At the beginning of the process, the edge trimming and the slitter are readjusted. Subsequently, if necessary, a manual control of the width. During the ongoing manufacturing process, the dimensions i.d.R. not be checked anymore. A check can only be made again on the finished product, the roll of material or the plate. If deviations occur, i.A. the entire roll or a batch declared as a scrap. In addition, the question arises of the correct total roll length. … The solution is non-contact systems that are easy to integrate and do not disrupt the regular production process. ELOVIS offers width and diameter measuring systems called μMETER for measuring webs, webs with widths up to approx. 2500 mm and an accuracy in the 1/10 millimeter range. In addition, the proven μSPEED length measuring systems are used. Non-contact measurement is performed on the μMETER and μSPEED systems during the product pass. The measurement is used for production optimization as well as the error message in case of exceeding of tolerance and the documentation of the delivery condition. All non-contact ELOVIS systems are maintenance-free, permanently accurate and measure largely independent of material.