Method and apparatus for evaluating yarn signals based on the de

Details Method and apparatus for evaluating yarn signals based on the de Method and apparatus for evaluating yarn signals based on the de

1978-02-17

1979-09-25

Gorenstein, Charles

Textiles: spinning, twisting, and twining

Apparatus and processes

Monitor and control

57265, 73160, D01H 1322

Patent

active

041686047

ABSTRACT:
An apparatus for controlling a plurality of spinning stations by evaluating yarn signals based upon detection of approximately periodic variations in yarn cross section provides for conversion of the signals to digital form and application of the digital signals to a microcomputer in which the sum of the differences between the original yarn signal and a yarn signal delayed in time is continuously formed. Specific fault signals are produced from the summed differences which are checked against predetermined reference values.

REFERENCES:
patent: 2641960 (1953-06-01), Strother
patent: 3069621 (1962-12-01), Berttecaz
patent: 3731069 (1973-05-01), Goto et al.
patent: 4051722 (1977-10-01), Feller
patent: 4058962 (1977-11-01), Spescha et al.
patent: 4060965 (1977-12-01), Schwartz

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