Method and apparatus for identifying mapping of paper machine actuator
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United States of America Patent
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Oct 31, 2006
Grant Date -
Nov 28, 2002
app pub date -
May 23, 2002
filing date -
Dec 31, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and an apparatus for identifying mapping of a paper machine by means of a mapping test. The invention comprises forming a mapping model which takes the linear and non-linear shrinkage of a paper web into account. The mapping test result is analyzed to form a non-linear shrinkage profile and a linear mapping error from it. The linear error and the non-linear shrinkage profile thus obtained are used in the mapping model.
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