Infrared process for measuring the kneading mass in a calender r

Details Infrared process for measuring the kneading mass in a calender r Infrared process for measuring the kneading mass in a calender r

1974-12-13

1976-06-08

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250358R, G01N 2300

Patent

active

039625800

ABSTRACT:
The thickness of a thermoplastic kneading mass having a temperature of at least 40.degree.C in the feeding region of a roller gap, is measured by scanning in the said feeding region the zone of bare roll to kneading mass and kneading mass to rolling sheet with an infrared radiation receiver of high geometrical resolution defined by a diameter of the measuring field of from 0.5 to 3 mm with a measuring distance of from 0.2 to 3 m, recording the curve of thermal radiation and determining the thickness of kneading mass from the distance of the two points of discontinuity in the recorded curve of thermal radiation with consideration of the ratio of the scanning speed to the speed of registration.

REFERENCES:
patent: 3532887 (1970-10-01), Clark
patent: 3805072 (1974-04-01), Goerens et al.

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