Method and apparatus for on-line quality monitoring in the prepa

Details Method and apparatus for on-line quality monitoring in the prepa Method and apparatus for on-line quality monitoring in the prepa

1994-01-13

1995-06-27

Calvert, John J.

Textiles: fiber preparation

Working

Drafting

19 023, D01G 3100

Patent

active

054268230

ABSTRACT:
The fluctuations in cross-section of fiber slivers are detected by means of a sensor, and from these detections are derived quality parameters, one of which is based on mass non-uniformity. Measurement signals are compared with a limit value for deviations from the desired weight of the monitored sliver, which limit value is formed as a product of mass non-uniformity and a selectable limit-value factor. Any measurement exceeding the limit value is interpreted as the presence of a thick place in the fiber sliver.

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patent: 4864853 (1989-09-01), Grunder et al.
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patent: 5010494 (1991-04-01), Lord
patent: 5134755 (1992-08-01), Jornot et al.
patent: 5194911 (1993-03-01), Stutz
patent: 5248925 (1993-09-01), Jornot

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