Method and means for measuring web tension in paper or foils

Details Method and means for measuring web tension in paper or foils Method and means for measuring web tension in paper or foils

1977-03-23

1978-08-29

Ruehl, Charles A.

Measuring and testing

Volumetric content measuring

73DIG1, 73581, G01L 510

Patent

active

041095200

ABSTRACT:
A tension in a paper or foil web is measured by subjecting an area of the web between points of support to transverse oscillations. The impedance of an oscillation generating means located adjacent the web changes with the oscillation and impedance is measured with the transverse oscillation at a frequency approaching the expected fundamental resonant frequency for the web tension under consideration. The damping effect of the transverse oscillations by the web is a function of the web tension.

REFERENCES:
patent: 3240054 (1966-03-01), Ruth
patent: 3403553 (1968-10-01), Wiener
patent: 3599485 (1971-08-01), Muhlberg
patent: 3718037 (1973-02-01), Stringer et al.

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