Method and apparatus for measuring caliper of paper

Details Method and apparatus for measuring caliper of paper Method and apparatus for measuring caliper of paper

G - Physics

01

B

G01B 13/06 (2006.01) D21F 11/00 (2006.01) G01B 7/02 (2006.01) G01B 7/06 (2006.01) G01B 21/08 (2006.01)

Patent

CA 2322172

The invention relates to a method and an apparatus for measuring the caliper of paper substantially continuously during papermaking. A sensor (3a, 3b) is arranged above and/or under the paper (2), the sensor (3a, 3b) measuring the caliper of the paper (2) at least on one side of the paper (2) mainly without contacting the surface of the paper (2). At given intervals the sensor (3a, 3b) measuring mainly without contact is brought into momentary contact with the surface of the paper (2).

L'invention concerne un procédé et un appareil de mesure de l'épaisseur du papier de manière sensiblement continue lors de la fabrication du papier. Un capteur (3a, 3b), conçu au-dessus et/ou au-dessous du papier (2), sert à mesurer l'épaisseur du papier (2) au moins sur un côté du papier (2) principalement sans entrer en contact avec la surface du papier (2). A intervalles donnés, le capteur (3a, 3b), mesurant principalement sans contact, est momentanément mis en contact avec la surface du papier.

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