Method and equipment in the measurement of the flatness of the flow surface of the headbox of a paper machine
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United States of America Patent
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Feb 26, 2008
Grant Date -
Mar 10, 2005
app pub date -
Aug 23, 2004
filing date -
Aug 26, 2003
priority date (Note) -
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Abstract
A method in the measurement of the flatness of the flow surface of a headbox of a paper machine is disclosed. The flatness is determined by placing a measuring tool on the flat surface formed by the flow surface and measuring the position of the measuring tool at each point. A measuring sensor is arranged in the measuring tool, in order to determine the distance between the measuring tool and the flat surface. In addition, the dimensions provided by the measuring sensors are read and the position of the measuring tool and the dimensions from the measuring sensors are combined, in order to determine the values of the measured points. The invention also relates to equipment in the measurement of the flatness of the flow surface of the headbox of a paper machine.
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