Industrial roll with piezoelectric sensors for detecting...

D - Textiles – Paper – 21 – F

Patent

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Details

D21F 3/06 (2006.01) D21F 3/08 (2006.01) F16C 13/00 (2006.01) G01L 5/00 (2006.01)

Patent

CA 2564388

An industrial roll includes: a substantially cylindrical core having an outer surface; a polymeric cover circumferentially overlying the core outer surface, the cover including a base layer circumferentially overlying the core and a topstock layer overlying the base layer; and a sensing system. The sensing system includes: a plurality of piezoelectric sensors embedded in the cover base layer, the sensors configured to sense pressure experienced by the roll and provide signals related to the pressure; and a processor operatively associated with the sensors that processes signals provided by the sensors. The embedding of sensors in the cover base layer can allow for piezoelectric sensors to be applied without temperature insulation and can reduce the impact of water permeation through the topstock layer.

L'invention concerne un rouleau industriel qui comporte : un noyau sensiblement cylindrique présentant une surface externe ; un couvercle polymère recouvrant la circonférence de la surface externe centrale, ledit couvercle comportant une couche de base recouvrant la circonférence du noyau et une couche supérieure recouvrant la couche de base ; et un système de détection. Ledit système de détection comporte : plusieurs capteurs piézo-électriques intégrés dans la couche de base du couvercle, les capteurs étant conçus pour détecter la pression subie par le rouleau et produire des signaux relatifs à ladite pression ; et un processeur fonctionnellement associé aux capteurs destiné à traiter les signaux produits par lesdits capteurs.

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