Nip width sensing method and system for industrial rolls
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United States of America Patent
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Sep 1, 2015
Grant Date -
Dec 6, 2012
app pub date -
May 31, 2012
filing date -
Jun 2, 2011
priority date (Note) -
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Abstract
A method of determining the width of a nip formed by an industrial roll and a mating structure includes the steps of: providing an industrial roll having a cylindrical core and a polymeric cover surrounding the core, the industrial roll further comprising a plurality of pressure sensors mounted in the roll (optionally distributed in a helical pattern on the roll about a longitudinal axis of the roll); positioning the industrial roll in contact with the mating structure to form a nip; rotating the industrial roll; receiving pressure signals from the plurality of pressure sensors at a controller; and in the controller, utilizing the pressure signals from the pressure sensors to determine the width of the nip at locations on the roll associated with the pressure sensors.
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