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Metso’s High Speed All-in-One Tissue Sensor Goes Non-Nuclear


June 1, 2010
By Pulp & Paper Canada

After extensive field testing in tissue mills, Metso is now delivering a new all-in- one sensor which measures tissue fibre weight and moisture simultaneously in the PaperIQ Select quality control sys…

After extensive field testing in tissue mills, Metso is now delivering a new all-in- one sensor which measures tissue fibre weight and moisture simultaneously in the PaperIQ Select quality control system. The new sensor, called IQFiber, measures fibre weight and moisture on the same spot of paper using a multi-channel infrared detector. The need for a traditional basis weight sensor with a nuclear source has been eliminated. Therefore, the time and costs involved in nuclear safety training, nuclear licenses and specialized service and safety requirements have been eliminated.

IQFiber is installed in numerous tissue mills using virgin pulp or 100% recycled furnish. Users of the IQFiber sensor report lower maintenance and cleaning requirements, leading to increased productivity. Also, with more precise control over dry fibre weight, tissue makers have been able to reduce target sheet weight at the same quality, thereby saving valuable fibre furnish.

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The speed of response and signal to noise ratio of the IQFiber measurement are significantly better than traditional nuclear sensors, making it most appropriate for the detection of transient or cyclical variations and allowing more precise control.

This high speed measurement analysis adds a significant troubleshooting capability to the system, making it possible to perform detailed online variability studies and to make process improvements.

Metso, 514-335-5426 www.metso.com


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