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A method and a device for tracking the position of the edge of a moving web ( 12 ), such as a fabric or a web of a paper machine, in which method a pressure-sensitive sensor element ( 14 ) is disposed in/onto the surface of the roll ( 10 ) guiding the web ( 12 ), which sensor element reacts to the p...

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Bibliographische Detailangaben
Hauptverfasser:	SALMINEN,SAMPPA, HUUSKONEN,REIJO, SALONIEMI,JYRKI
Format:	Patent
Sprache:	fin ; swe
Schlagworte:	CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	A method and a device for tracking the position of the edge of a moving web ( 12 ), such as a fabric or a web of a paper machine, in which method a pressure-sensitive sensor element ( 14 ) is disposed in/onto the surface of the roll ( 10 ) guiding the web ( 12 ), which sensor element reacts to the pressure applied to it by the moving web ( 12 ) by producing an electric signal, on the basis of which it is possible to determine the exact position of the edge of the web ( 12 ) on the roll ( 10 ). The band-like sensor element ( 14 ) comprises one single sensor strip or several sensor strips ( 14 1 . . . 14 n) disposed successively in the band.