Method for automatic fabric inspection

Details Method for automatic fabric inspection Method for automatic fabric inspection

1976-02-23

1978-11-07

Corbin, John K.

Optics: measuring and testing

By monitoring of webs or thread

250571, 356357, 356238, G01N 2130

Patent

active

041243005

ABSTRACT:
Fabric such as textile material is automatically inspected at high speed by diffraction of light techniques. The fabric is moved through a plane and irradiated with monochromatic light of given cross sectional area sufficient to encompass a large number of warp and fillings making up the fabric. The diffraction pattern developed after the beam has passed through the fabric is detected and various regions of this diffraction pattern are processed to provide data indicative of the quality of the fabric. The major regions involved in the diffraction pattern include the developed central lobe and first order side lobes along orthogonal axes normal to the directions of the warps and filling threads of the fabric.

REFERENCES:
patent: 3633037 (1972-01-01), Langenbeck
patent: 3659950 (1972-05-01), Troll et al.
patent: 3709610 (1973-01-01), Kruegle
patent: 3783296 (1972-04-01), Blevins
patent: 3797939 (1974-03-01), Pryor
patent: 3937580 (1976-02-01), Kasdan
patent: 4009965 (1977-03-01), Pryor

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