Method of simultaneously determining gauge and orientation of po

Details Method of simultaneously determining gauge and orientation of po Method of simultaneously determining gauge and orientation of po

1984-09-24

1986-12-23

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

250340, 250341, G01J 100

Patent

active

046314083

ABSTRACT:
In the manufacture of a multilayer polymer film, the thickness and degree of orientation are simultaneously measured. A beam of infrared radiation having predetermined wavelengths is either transmitted through or reflected by the polymer film to be measured and received by a photodetector. The photodetector provides an electrical output signal which can be analyzed to determine the thickness and degree of orientation.

REFERENCES:
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patent: 3825755 (1974-07-01), Ruskin
patent: 4027161 (1977-05-01), Williams et al.
patent: 4243882 (1981-01-01), Yasujima et al.
patent: 4429225 (1984-01-01), Fumoto et al.
patent: 4490612 (1984-12-01), Tormala
patent: 4521111 (1985-06-01), Paulsen et al.
Wolfram et al, "An Improved IR Method for Meas. Struct. and Orientation in Polymers Applied Spectroscopy", vol. 24, #2, p. 263 (1970).

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