Measuring device and method for measuring the crosswise profile of a paper web
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United States of America Patent
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Mar 29, 1994
Grant Date -
N/A
app pub date -
Jan 29, 1991
filing date -
Aug 10, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A measuring bridge, fixed in place above a moving paper web and disposed crosswise to it, is provided, having a measuring head, movable back and forth--crosswise to the paper web--, for determining the measuring values for judging the thickness of the paper web at the measuring spots or point on top of which the measuring head happens to be. The measuring device, has a process management system, in which a traversing flow program has been installed, in accordance with which the traversing time and/or the reversing time of the measuring head are changed after each traverse of the measuring bridge. Because of this, the frequency of the measurements along the web becomes irregular. This prevents false evaluations of the cross section and, as a consequence, inappropriate control instructions of a control computer.
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