Method and device for tracking the edge of a web
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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| Format: | Patent |
| Sprache: | eng |
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| 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. |
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