Patent ID: 6204672
Filing Date: 2001-03-20
Classification: D21H,G01G,G01N

Abstract:
A system for producing a paper product from a feedstock material comprising:a headbox for dispensing said stock material;a water removal stage for receiving said dispensed stock material having at least one webbed conveyor belt, said at least one webbed conveyor belt having a first region on which said stock material is dispensed and a second region wherein said water is removed, wherein water is removed from said dispensed material through said at least one webbed conveyor belt to produce a web of material;a measurement apparatus including a fixed impedance portion and at least one sensor array coupled to said fixed impedance portion between a signal source and a reference potential, said at least one sensor array having a variable impedance such that changes in properties of said stock material causes changes in impedance of said at least one sensor array, said at least one sensor array being placed in close proximity to said at least one webbed conveyor belt, said at least one sensor array including:a first elongated electrode coupled to said reference potential and second and third elongated segmented electrodes parallel to and essentially in the same plane as said first elongated electrode, wherein segments within said second and third electrodes are configured with respect to each other such that segments in said second electrode are staggered with respect to segments in said third electrode; anda drying stage for drying said web of material to form said paper product.