Optical inspection of polymer-based materials

Details Optical inspection of polymer-based materials Optical inspection of polymer-based materials

1986-10-14

1989-02-07

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356417, 2504591, G01J 330, G01N 2164

Patent

active

048027626

ABSTRACT:
An optical inspection system for using laser-induced luminescence to detect deterioration of a polymer-based material. The inspection system comprises an excitation means for illuminating a specimen of the polymer material to cause it to produce fluorescent radiation. The spectral representation of the fluorescence produced by the specimen is compared to the spectrum of a reference sample of known quality in order to obtain an indication of the physical characteristics of the specimen.

REFERENCES:
patent: 4018530 (1977-04-01), Hirschfeld
patent: 4580059 (1986-04-01), Wolfbeis
patent: 4642526 (1987-02-01), Hopkins
patent: 4645918 (1987-02-01), Tsuchiya et al.

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