Web flutter detection

Details Web flutter detection Web flutter detection

1995-11-21

1998-01-27

Edwards, Laura

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

250239, 2503418, 356429, 118663, 118665, 118679, 118712, G01N 2100

Patent

active

057124892

ABSTRACT:
A system for detecting web flutter of a web leaving a nip utilizes a proximity of sensor preferably a plurality of proximity sensors arranged transversely of the web to locally measure the distance between the web and the sensors at a distance no greater close to the nip so that the proximity sensor determines roll the web is following leaving the nip in each area sensed by each detector so that this information may be used to monitor or control the coating system.

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patent: 5159893 (1992-11-01), Rantanen
patent: 5328511 (1994-07-01), Beisswanger

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