Method and apparatus for determining the structure of yarns in t

Details Method and apparatus for determining the structure of yarns in t Method and apparatus for determining the structure of yarns in t

1994-04-04

1996-05-28

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250572, 2502082, 356430, G01N 2188

Patent

active

055213952

ABSTRACT:
The surface of a yarn (G) is imaged on a sensor (7) having a plurality of sensor elements of differing structural arrangement. The signals of the individual sensor elements are compared with one another, and the structure of the examined yarn surface is determined on the basis of correspondence with the appropriate sensor element. The structure to be examined is formed both by the actual yarn surface and by the yarn edge, including projecting fibers and possible impurities, such as foreign fibers, included in the yarn.

REFERENCES:
patent: 3985451 (1976-12-01), Plocki
patent: 4887155 (1989-12-01), Massen
patent: 5030841 (1991-07-01), Wampfler

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