Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1990-01-30
1991-08-27
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
356429, G01N 2186
Patent
active
050435906
ABSTRACT:
A method for quantifying size encapsulation of yarn on a slasher comprising measuring the hairiness of yarn entering a slasher prior to the application of size to the yarn, measuring the hairiness of the yarn leaving the slasher and solving the equation: ##EQU1## Apparatus for quantifying the size encapsulation of yarn on a slasher comprises an entry hairiness sensor positioned at the entry side of a slasher, a delivery hairiness sensor positioned at the delivery side of the slasher, the entry and delivery sensors producing signals proportional to the hairiness of the yarn at the entry and delivery sides of the slasher respectively, and a computer for solving the above indicated equation and producing an output signal representative of size encapsulation.
REFERENCES:
patent: 3044345 (1962-07-01), Schottler
patent: 3582661 (1971-06-01), Emmasingel
patent: 4634280 (1987-01-01), Paulson
patent: 4738866 (1988-04-01), Conklin et al.
patent: 4812043 (1989-03-01), Vanstaen
patent: 4948260 (1990-08-01), Felix et al.
Barella, "Yarn Hairiness", Textile Progress, vol. 13, No. 1, 1983, pp. 50-53.
Slater, "Yarn Evenness", Textile Progess, vol. 14, No. 314, 1986, pp. 26-29.
Strandberg Robert C.
Strandberg, Jr. Charles F.
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