Pile lay measurement system

Details Pile lay measurement system Pile lay measurement system

1986-03-31

1987-10-27

Evans, F. L.

Optics: measuring and testing

Angle measuring or angular axial alignment

26 70, 250572, 356152, 356238, 356430, G01B 1126, G01N 2159, G01N 2189

Patent

active

047025972

ABSTRACT:
Method and apparatus to measure the angle of pile lay to generate a signal which can be employed to automatically adjust another phase of the manufacturing operation to provide a desired pile effect on the fabric. Basically, the invention involves placing a light source on one side of the pile fabric and a light sensor on the other side of the fabric and varying the relative positions of the source and sensor to the pile on the fabric to obtain a measurement of optimum light transmittance.

REFERENCES:
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patent: 3001080 (1961-09-01), Neil
patent: 3065615 (1962-11-01), Abrams
patent: 3116621 (1964-01-01), Klein et al.
patent: 3435240 (1969-03-01), Brunton
patent: 3490253 (1970-01-01), Sick et al.
patent: 3556665 (1971-01-01), Hertel
patent: 4248533 (1981-02-01), Shimada
patent: 4338032 (1982-07-01), Bardsley et al.
patent: 4606645 (1986-08-01), Matthews et al.

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