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U.S. Department of Energy
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Four-dimensional characterization of a sheet-forming web

Patent ·
OSTI ID:921313
A method and apparatus are provided by which a sheet-forming web may be characterized in four dimensions. Light images of the web are recorded at a point adjacent the initial stage of the web, for example, near the headbox in a paperforming operation. The images are digitized, and the resulting data is processed by novel algorithms to provide a four-dimensional measurement of the web. The measurements include two-dimensional spatial information, the intensity profile of the web, and the depth profile of the web. These measurements can be used to characterize the web, predict its properties and monitor production events, and to analyze and quantify headbox flow dynamics.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Sponsoring Organization:
United States Department of Energy
DOE Contract Number:
AC05-96OR22464;
Assignee:
U.T. Battelle, LLC (Oak Ridge, TN)
Patent Number(s):
6,553,133
Application Number:
09/401,102
OSTI ID:
921313
Country of Publication:
United States
Language:
English

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