Apparatus to measure yarn tension

Details Apparatus to measure yarn tension Apparatus to measure yarn tension

1990-11-21

1992-05-19

Eisenzopf, Reinhard J.

Measuring and testing

Dynamometers

Responsive to force

57264, G01L 510

Patent

active

051137089

ABSTRACT:
An apparatus to cause a running length of yarn to vibrate at its harmonic frequency by through utilization of dual orifices through which pressurized air flows at an angle of intersection and to measure electronically the harmonic frequency thereof to provide a signal that can be employed to maintain and/or correct the parameters of the system to maintain a desired tension in the yarn being run.

REFERENCES:
patent: 2618970 (1952-11-01), Hitchcock et al.
patent: 2744408 (1956-05-01), Seney
patent: 3273380 (1966-09-01), Seney
patent: 3854329 (1974-12-01), Jones
patent: 4376368 (1983-03-01), Wilson
patent: 4393725 (1983-07-01), Satterfield
patent: 4445322 (1984-05-01), Satterfield
patent: 4692615 (1987-09-01), Mensah et al.

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