Data processing: measuring – calibrating – or testing – Measurement system – Dimensional determination
Reexamination Certificate
2005-07-12
2005-07-12
Nghiem, Michael (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system
Dimensional determination
C702S155000
Reexamination Certificate
active
06917895
ABSTRACT:
A method for determining roll density in connection with a web reel. A known relation between the length (l), diameter (D), basis weight (b) and density (ρ) of the wound roll, formula (1) is used. Distortions caused in the measurement results by noise and other disturbances are eliminated by using a recursive time variant least squares method in the processing of the measurement results l=πρ(D2−D20)/4b.
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Metso Paper Inc.
Nghiem Michael
Stiennon & Stiennon
Washburn Douglas N
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