Method and apparatus for evaluating yarn signals having an at le

Details Method and apparatus for evaluating yarn signals having an at le Method and apparatus for evaluating yarn signals having an at le

1978-02-17

1979-05-08

Myracle, Jerry W.

Measuring and testing

Sheet, woven fabric or fiber

Filament

57265, G01D 104

Patent

active

041529316

ABSTRACT:
A method and apparatus for evaluating yarn signals having at least an approximately periodic component superimposed on an irregularity provides for determining the polarity values of successive signal components using a comparator and the evaluation of coincidence of such polarity values during a predetermined period using counting means.

REFERENCES:
patent: 4007457 (1977-02-01), Aeppli
patent: 4051722 (1977-10-01), Feller

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