Web tension measuring method and device

Details Web tension measuring method and device Web tension measuring method and device

G - Physics

01

L

349/35, 73/53

G01L 5/04 (2006.01) B65H 23/04 (2006.01)

Patent

CA 1235475

Abstract Web tension measurement in that the web (5) is caused to oscillate transversely with the resonance frequency for the portion of the web (5) defined by a support (2,2a). The oscillations are measured by detectors (6,7) for determining the web tension. The measuring is carried out free of contact in that a thin air layer is maint- ained between the support (2,2a) and web (5).

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