New on-line sensor measures formation like a papermaker - Papermart

New on-line sensor measures formation like a papermaker

Metso has introduced a new scanning formation sensor, called Metso IQ Formation Measurement, which uses high-speed image capture and analysis technology to define small-scale sheet uniformity. Machine operators can quickly optimize sheet formation visually and meet formation index specifications to ensure customer quality is uniform while the paper machine is running.

metso_scanning formation

The sensor resolves sequential, instantaneous pictures of the sheet as it scans across the paper machine and displays them on the QCS operator interface. A formation index and other numerical data which defines the distribution of fiber floc and void sizes are determined by the sensor’s sophisticated image analysis software. Dark spots, light spots and pinholes are also detected and classified by the analysis software.
The sharply-focused picture of the sheet gives the machine operators a clear view of sheet formation exactly as they would see it by visually inspecting a paper tear-sheet. Operators can make a quick evaluation of how formation is changing as they adjust forming conditions and furnish quality. Formation can be optimized systematically during a working shift