Optics: measuring and testing – By polarized light examination
Patent
1979-05-04
1981-04-28
Anderson, Bruce C.
Optics: measuring and testing
By polarized light examination
356369, G01J 400
Patent
active
042642078
ABSTRACT:
A method of determining the quality of oriented polymeric materials, based on the effect of small-angle scattering, comprises the passage of a beam of monochromatic, polarized and collimated light through a given material, extracting the scattered reflections, converting them to a train of electric pulses, and determining the degree of orientation of the material using the pulse spacing. An apparatus for determining the quality of oriented polymeric materials comprises a source which produces monochromatic, polarized and collimated light passed through an oriented polymeric material, and a housing which accommodates an analyzer, a mask and a scattered reflection converting unit to convert the scattered reflections extracted by the mask to a train of electric pulses, which are arranged serially along the direction of the light beam after the material. The scattered reflection converting unit comprises a scattered light detector coupled to the recorder.
REFERENCES:
patent: 2824488 (1958-02-01), Bridges et al.
patent: 3904293 (1975-09-01), Gee
patent: 4037965 (1977-07-01), Weiss
Rogovin, et al., "New Investigation Methods for Polymers", (Extract), "Mir" Publishers, Moscow, 1968, p. 24.
Batyrev Ruslan I.
Gdalin Semen I.
Kechekian Alexandr S.
Malinin Viktor V.
Popov Jury V.
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