Method and apparatus for measuring waviness of paper

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

G - Physics

01

B

G01B 11/30 (2006.01) D21G 9/00 (2006.01) G01B 21/06 (2006.01) G01N 33/34 (2006.01)

Patent

CA 2259807

The invention provides a simple and efficient method and apparatus for carrying out a quantitative measurement of waviness in a sample of paper. This is done by stretching the paper sample to the point where all waviness is removed and measuring the elongation produced at that point. The observation of waviness and its removal is facilitated by illumination of the paper sample with low incidence light while the sample is being stretched.

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