Optical system for detecting properties of traveling sheet mater

Details Optical system for detecting properties of traveling sheet mater Optical system for detecting properties of traveling sheet mater

1989-03-30

1991-05-28

Westin, Edward P.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

2503591, G01N 2101

Patent

active

050197100

ABSTRACT:
A system for detecting optically-sensitive properties of sheet materials during manufacture includes a first group of bundles of optical fibers that convey light to selected transmitting locations adjacent one face of the sheet material. The system further includes a second group of bundles of optical fibers that collect and convey light transmitted through the sheet material to a light detector. The light detector measures the intensity of light received from each of the bundles of the second group to provide measurements of optically-sensitive properties of the sheet material at selected cross-directional locations.

REFERENCES:
patent: 3806730 (1974-04-01), Tirkkonen et al.
patent: 4343991 (1982-08-01), Fujiwara et al.
patent: 4515165 (1985-05-01), Carroll

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