Methods and apparatus for determining fibre orientation

Details Methods and apparatus for determining fibre orientation Methods and apparatus for determining fibre orientation

G - Physics

01

N

G01N 22/00 (2006.01) B32B 21/00 (2006.01) B32B 23/00 (2006.01) B32B 41/00 (2006.01) B32B 43/00 (2006.01) G01N 21/23 (2006.01) G01N 23/00 (2006.01)

Patent

CA 2636495

Fibre distribution characteristics such as the bulk average orientation of fibres in composite fibrous materials can be evaluated based on the variation in the speed with which polarized electromagnetic signals propagate through the material as a function of angle. The electromagnetic radiation may comprise terahertz radiation. The composite fibrous materials may be wood- containing materials such as oriented strand board or particle board.

Les caractéristiques relatives à la distribution de fibres, telles que l'orientation moyenne de fibres dans des matériaux fibreux composites, peuvent être évaluées sur la base de la variation de la vitesse à laquelle des signaux électromagnétiques polarisés se propagent à travers le matériau en fonction de l'angle. Le rayonnement électromagnétique peut comprendre un rayonnement téraherzien. Les matériaux fibreux composites peuvent être des matériaux contenant du bois, tels que des panneaux OSB ou des panneaux de particules agglomérées.

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