Optical surface inspection of web with streak signal generating

Details Optical surface inspection of web with streak signal generating Optical surface inspection of web with streak signal generating

1991-10-31

1993-03-23

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250572, G01N 2188

Patent

active

051967154

ABSTRACT:
An apparatus for detecting streaks in a moving sheet of material utilizes the signal generating and processing means of an existing spot/hole detection system which provides a series of spot measurement signals generated sequentially as a machine direction series of cross-machine sets and assigns a cross-direction location to each signal. Means are provided for calculating an exponential average of the signals for each of the cross-machine locations. This average is compared with a predetermined standard and an output signal, including a cross-machine location, is generated when the average exceeds the standard.

REFERENCES:
patent: 3618063 (1970-02-01), Johnson
patent: 4075498 (1978-02-01), Takasuka et al.
patent: 5118195 (1992-06-01), Dobbie

Affiliated with

Also associated with

Rating

Optical surface inspection of web with streak signal generating does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical surface inspection of web with streak signal generating , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical surface inspection of web with streak signal generating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1354337