APPARATUS AND METHOD FOR DETECTING THICKNESS OF PAPER PRODUCT

摘要

A system detects the sheet quantity of sheet material such as paper by use of a detection roller which deforms from concentric when sheet material passes between the detection roller and another roller, and using a detector to detect the degree of de-concentricity and provide an output indicating the number of sheets passing through. The system has particular application to insert machines for detecting the number of sheets of insert material being inserted into host material such as newspapers.