Real-time and fullweb, pulp, paper and paperboard analysis

A web imaging system (WIS) is mainly used for online quality analysis, ie, the detection of defects and other undesired abnormalities, of a product such as pulp or paper. These measures deliver significant savings compared to cases where a poor-quality measurement of a portion of the web leads to the discarding or downgrading of large amounts of good-quality product. In a real-time WIS, pulp, paper or paperboard products are first imaged utilizing appropriate illumination, imaging configuration, optics and camera. ABB has designed an FPGA-based camera that processes raw image data and transfers only the results and target images having the desired resolution and dynamic range. ABB's DIRT Count is part of ABB's innovative QMS Web Imaging family of integrated imaging products that allows real-time, full-web dirt detection, measurement and analysis of web-based products. It is an automated, online, image-based inspection system that utilizes high-resolution CMOS digital camera technology and real-time methodology. These new ABB web imaging methods and solutions will help improved web-based product quality, cut down waste, increase operational equipment effectiveness and lead to all-round better productivity.