Among the various checklists for the quality control for rolled steel sheets, width is one very significant factor that is directly connected with consumers’ requirements. Especially, the improvement of the accuracy of width greatly reduces the amount of strip trimming, which in turn, contributes to the improvement of the collect rate of the rolled steel sheets. And because of this, the introduction of high precision width measuring technique and the actual instruments has been on the rise.

Width measurement system has 3 types and uses many different light sources. High precision width measurement system is a measuring instrument that can maximize its utility not only in the steel industry, but also in paper industry, plastic and film industry.