METHOD OF MEASURING THE THICKNESS OF A LAYER, AND A DEVICE FOR CARRYING OUT THE METHOD

摘要

Described is a method of measuring the thickness of paste-like or dough-like material on a moving surface (5). A movably mounted measurement roller is laid on the layer and, while the surface covered by the layer moves past, the distance the roller is displaced at right angles to the direction of motion of the surface is determined by means of a sensor which generates an output signal. One parameter of this output signal is functionally related to the magnitude of the measurement-roller displacement, i.e. the thickness of the layer. In order to maintain precision and avoid the layer being measured being wound on the measurement roller, a pre-defined braking force is exerted on the roller.