G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/35 (2006.01) G01N 33/34 (2006.01)
Patent
CA 2279904
The invention relates to a method for measuring paper coating components by infrared measurement whereby the paper components are determined by reflection measurement of a middle infrared range in such a manner that the amount of calcium carbonate in the coating is determined in the wavelength range 2.5-8 µm.
L'invention concerne un procédé permettant de déterminer, par mesure aux infrarouges, des composants d'une couche de papier. Ledit procédé consiste à déterminer les composants du papier en mesurant la réflexion d'une plage de rayons infrarouges moyenne de façon telle que la quantité de carbonate de calcium présente dans la couche est déterminée dans la plage de longueurs d'onde comprise entre 2,5 et 8 mu m.
Kansakoski Markku
Sumen Juha
Tenhunen Jussi
Tornberg Jouni
Metso Automation Oy
Sim & Mcburney
Valmet Automation Inc.
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