Method of and apparatus for detecting faults in the operation of

Details Method of and apparatus for detecting faults in the operation of Method of and apparatus for detecting faults in the operation of

1975-01-24

1977-02-08

Swann, III, Glen R.

Communications: electrical

Systems

Call station

19 23, 57 81, 66163, 73160, 242 36, G08B 2100

Patent

active

040074579

ABSTRACT:
Faults in produced yarn occurring by fouling of spinning units can be detected by measuring changes in the cross-sectional diameter of the yarn and producing a control signal indicating irregularities. The apparatus of this invention includes a measuring device for measuring the cross-sectional diameter and producing a signal representative thereof, which signal is processed in a discriminator circuit, including at least a correcting circuit with a non-linear characteristic, an integrating circuit and a comparison circuit to compare the integrated signal with a predetermined standard, thereby producing the control signal.

REFERENCES:
patent: 3053986 (1962-09-01), Loepfe et al.
patent: 3106762 (1963-10-01), Riera
patent: 3264922 (1966-08-01), Peyer
patent: 3408560 (1968-10-01), Felix et al.
patent: 3440634 (1969-04-01), Maurmann et al.
patent: 3731069 (1973-05-01), Goto et al.
patent: 3756524 (1973-09-01), Felix

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