Method and a device for monitoring a web

Details Method and a device for monitoring a web Method and a device for monitoring a web

1992-02-06

1995-01-03

Dzierzynski, Paul M.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250561, G01N 2186

Patent

active

053789180

ABSTRACT:
An apparatus and method for the monitoring of a web in a machine processing such web including at least one sensor positioned along the path of the web. The sensor includes a transmitter for transmitting a monitoring beam to the web and a receiver for receiving part of the monitoring beam returned from the web. The receiver is connected to a signal processor for measuring the interval between the transmitting and the receiving. The signal processor produces a control pulse to the machine when the interval exceeds a predetermined tolerated range. The signal processor is a computer programmed such that the tolerated range is set larger prior to the arrival of the signal than after the arrival.

REFERENCES:
patent: 1999618 (1935-04-01), Raymond
patent: 4186309 (1980-01-01), Gnuechtel
patent: 4309618 (1982-01-01), Carter, Jr. et al.

Affiliated with

Also associated with

Rating

Method and a device for monitoring a web does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and a device for monitoring a web, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and a device for monitoring a web will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2212990