INFRARED MEASUREMENT OF PAPER MACHINE CLOTHING CON

专利名称：INFRARED MEASUREMENT OF PAPER

MACHINE CLOTHING CONDITION

发明人：MACHATTIE, ROSS, K.,HARAN, FRANK, M.申请号：EP08838215申请日：20081010公开号：EP2198278A4公开日：20101027

摘要：Infrared spectroscopy techniques are employed to measure (i) the moisturelevel in both the sheet of wet stock and the papermaking machine clothing on which thesheet is supported and (ii) the moisture level in the clothing alone as a separate layer ofmaterial. Differential measurement thus yields the moisture content of the sheet of wetstock alone. Changes in the moisture level in the clothing at the press section can becorrelated with corresponding changes in the quality or physical property of the paperproduced. Both fixed point and scanning IR sensors are strategically positioned in thepress section to generate machine direction and/or cross machine direction waterprofiles for process control.

申请人：HONEYWELL ASCA, INC.

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