Structure and yarn sensor for fabric

Details Structure and yarn sensor for fabric Structure and yarn sensor for fabric

1997-03-14

1998-10-20

Font, Frank G.

Optics: measuring and testing

By monitoring of webs or thread

356430, G01N 2184

Patent

active

058255010

ABSTRACT:
A structure and yarn sensor for fabric directly determines pick density in a fabric thereby allowing fabric length and velocity to be calculated from a count of the picks made by the sensor over known time intervals. The structure and yarn sensor is also capable of detecting full length woven defects and fabric. As a result, an inexpensive on-line pick (or course) density measurement can be performed which allows a loom or knitting machine to be adjusted by either manual or automatic means to maintain closer fiber density tolerances. Such a sensor apparatus dramatically reduces fabric production costs and significantly improves fabric consistency and quality for woven or knitted fabric.

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