NDLI: Automated identification of web shrinkage and alignment in paper and film machines

Content Provider	IEEE Xplore Digital Library
Author	Gorinevsky, D. Heaven, M. Lynch, C. Hagart-Alexander, C.
Copyright Year	1995
Description	Author affiliation: Measurex Devron Inc., North Vancouver, BC, Canada (Gorinevsky, D.; Heaven, M.; Lynch, C.; Hagart-Alexander, C.)
Abstract	This paper considers identification of the cross-directional (CD) response of the paper machine from the input-output data. In particular, the paper is devoted to identification of the mapping between the CD actuators and the scanned profiles of the paper properties taking into account effects of paper shrinkage and misalignment. We describe a novel approach to identification of alignment and shrinkage using advanced optimization technology. The approach allows us to achieve reliable identification of alignment and shrinkage within 10-20 scans of the profile data, despite the process noise. Instead of averaging only in machine direction (MD), as it is commonly done for classic bump tests to determine bump centers, we compute model fit error for the entire array of data. Such design of the algorithms effectively averages out the noise in both MD and CD which results in much better noise rejection, improved accuracy, and much shorter required test interval than classical bump test methods.
Starting Page	3358
Ending Page	3362
File Size	538851
Page Count	5
File Format	PDF
ISBN	0780325591
DOI	10.1109/ICSMC.1995.538304
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-10-22
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Actuators Testing Paper making machines Shape control Noise shaping Algorithm design and analysis Position measurement Particle measurements Performance evaluation Information filtering
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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