G - Physics – 01 – J
Patent
G - Physics
01
J
73/56, 73/57, 73
G01J 3/50 (2006.01) G01N 21/17 (2006.01) G01N 21/27 (2006.01) G01N 21/55 (2006.01) G01N 21/86 (2006.01)
Patent
CA 2040456
Systems (10) for the on-line optical measurement of properties of a translucent moving web (12), such as paper or plastic, as it is continually produced, colored or otherwise converted. Measured properties include color, reflectance and opacity. A backing roll (22) has a cylindrical or approximately cylindrical surface (24) which comprises at least one optical standard. The roll is positioned such that a circumferential portion (26) of the roll surface contacts the back web surface (16) where the web characteristic is to be measured, with the web curving around the circumferential portion. An optical sensing device (34) is positioned so as to view the front web (14) surface backed by the optical standard or standards. In several embodiments, two sets of reflectance data are collected, one with a "white" optical standard backing and the other with a "black" optical standard backing. The backing roll surface and the optical sensing device can be arranged such that the sensing device either alternately or simultaneously views portions of the front web surface backed by each of the optical standards. In other embodiments, the backing roll has a uniform optical standard surface.
Hubbe Martin Allen
Lisnyansky Khaim
Gowling Lafleur Henderson Llp
International Paper Company
LandOfFree
System for on-line measurement of color, opacity and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for on-line measurement of color, opacity and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for on-line measurement of color, opacity and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2062965