Procedure and means for measuring the thickness of a...

Details Procedure and means for measuring the thickness of a... Procedure and means for measuring the thickness of a...

G - Physics

01

B

33/50

G01B 21/08 (2006.01) G01B 11/06 (2006.01)

Patent

CA 1269525

ABSTRACT The invention concerns a procedure for measur- ing the thickness of a film-like or sheet-like web. In the procedure, measuring heads located on both sides of the web and detectors provided in these are employed to measure the distances of the measuring heads from the respective surface of the web. Moreover, the dis- tance from each other of the measuring heads is measured and from the three results of measurement thus obtained, the thickness of the web is calculated. The invention furthermore concerns a measuring means for implementing the procedure, this means comprising measuring heads located on both sides of the web, at a distance from the web, these measuring heads being provided with detectors for measuring the distance of each measuring head from the web surface on the respective side and with a detector for measuring the distance between the measuring heads. (Fig. 1)

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