Method for measuring the thickness of a layer and apparatus for

Details Method for measuring the thickness of a layer and apparatus for Method for measuring the thickness of a layer and apparatus for

1996-03-18

1998-05-05

Raevis, Robert

Measuring and testing

Surface and cutting edge testing

B23Q 1709

Patent

active

057476756

ABSTRACT:
A method for measuring the thickness of a layer of pasty or dough-like material on a moving surface (5) wherein a movably supported measuring roll is contacted with the layer and wherein during the movement of the surface provided with the layer the deflection of the measuring roll crosswise to the moving direction of the surface is detected with a sensor generating an output signal, whereat a parameter of this output signal is in a functional relationship with the magnitude of the deflection of the measuring roll, or of the thickness of the layer, respectively. To maintain the accuracy and to prevent the coiling up of the layer to be measured on the measuring roll, a defined braking force is exerted thereon.

REFERENCES:
patent: 2224728 (1940-12-01), Gulliksen
patent: 3372878 (1968-03-01), Verdier
patent: 3525929 (1970-08-01), Mounce
patent: 3866115 (1975-02-01), Lewis
patent: 4746070 (1988-05-01), Kuster
patent: 4778167 (1988-10-01), Snow et al.
patent: 5284670 (1994-02-01), Hayashi

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