Optics: measuring and testing – Inspection of flaws or impurities – Bore inspection
Patent
1974-12-11
1976-08-03
Corbin, John K.
Optics: measuring and testing
Inspection of flaws or impurities
Bore inspection
250563, 250572, 356237, G01N 2132
Patent
active
039726240
ABSTRACT:
In a process for detecting longitudinally orientated faults on moving webs of paper or film, the web is optically scanned line by line transversely to its direction of movement and read by reflection. The scanning line is moved to and fro across the whole web at constant velocity and during a given number of scanning movements the instantaneous value of the reflected signal is interrogated at two fixed time marks within the scanning line and stored and the average values over a scanning cycle are formed separately for each of the two time marks. The average values ae indicated and recorded as faults only if a value different from the average noise value is obtained from both time marks in succession.
REFERENCES:
patent: 3510664 (1970-05-01), Nichols
patent: 3797943 (1974-03-01), Nagao et al.
patent: 3812373 (1974-05-01), Hosoe et al.
Geiger Julius
Klein Hans Joachim
Rupprecht Manfred
Wonneberg Heinz
AGFA-Gevaert A.G.
Corbin John K.
Rosenberger Richard A.
LandOfFree
Process and apparatus for detecting longitudinal faults on movin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and apparatus for detecting longitudinal faults on movin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for detecting longitudinal faults on movin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1926342