Method and apparatus for measuring tension in a moving web

Details Method and apparatus for measuring tension in a moving web Method and apparatus for measuring tension in a moving web

B - Operations, Transporting

65

H

B65H 23/04 (2006.01)

Patent

CA 2528760

An apparatus and method for the non-contact measurement of tension in a moving web material (11) are provided herein. In one embodiment the apparatus includes a non-contacting tension-sensing element, such as an airfoil (500), disposed transverse to the machine direction of the web material, at least one sensor (400) capable of detecting a reaction of the non-contacting tension- sensing element to changes in the tension of the moving web material and a data processing system capable (500) of determining a web tension analog value that is proportional to the tension of the web material (11).

Dispositif et procédé de mesure sans contact de la tension d'un voile en mouvement (11). Dans un mode de réalisation, le dispositif comprend un élément détecteur de tension sans contact., tel qu'un profil aérodynamique (500), disposé transversalement par rapport au sens d'avance du matériau en voile, au moins un capteur (400) capable de détecter la réaction de l'élément détecteur de tension sans contact et un système de traitement de données (500) déterminant une valeur analogique de tension du voile qui est proportionnelle à la tension du matériau en voile (11).

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