Method and apparatus for roll winding measurement

摘要

A method and apparatus for continuously measuring the compressive strain and determining the compressive pressure on rolls of flexible material as they are being wound and for measuring the accumulated length of material wound on the roll. An accurate measurement is recorded of the length and caliper of each layer of the roll. From these measurements, the compressive strain and compressive pressure are determined and this information is used to control the winding process. The length measurements are also employed to correct the accumulated length measurement after the winding has been interrupted for removal of defective layers of material.