MODE OF CONTINUOUS CONTROL OF THE LAYERS OF THE FOUR-LAYERED METALFLUORAPLASTIC MATERIAL, POROSITY OF ITS METALLIC FRAME AND CONCENTRATION OF THE COMPONENTS IN THE FOURTH LAYER Russian patent published in 2007 - IPC G01B7/06 G01N25/00 

FIELD: the invention refers to control-measuring technique and may be used for continuous control of the thickness of the layers, thermal physic properties of multi-layer belt materials directly at the place of their manufacturing.

SUBSTANCE: the essence is in influencing on the bimetallic foundation with alternate magnetic field of an inductor with a U-shaped magnetic wire. The voltage is measured on a screen measuring coil which is located under the inductor from the opposite side of the bimetallic foundation. The deviation of the thickness of the layers from the standard is defined according to the changes of voltage on the screen measuring coil and the secondary winding of the inductor relatively to the voltage correspondingly on the screen standard coil and the secondary winding of the standard inductor. The thickness of the third layer is defined as difference between the thickness of the three-layer metallic belt measured with the aid of an inductive micrometer and the thickness of the two-layer metallic foundation. For measuring the porosity of the metallic frame and the thickness of the fourth fluoraplastic layer of the moving metallic fluoraplastic belt material local thermal influence is executed with the source of thermal power focused on the surface of the belt material in the shape of a stripe. The temperature is measured in the center of this stripe and in the point of the surface of the belt material from the back side opposite to the stripe of the thermal influence. The porosity of the metallic frame and the thickness of the fourth layer is defined with usage of values of the power of the heating flow of the source of the thermal energy. The extra temperature of the heated surface is measured in the point located at a definite distance behind the point source of thermal energy along the line of its movement at various values of the power of the point source of thermal energy. The thermal conductivity of the fourth fluoraplastic layer and concentration of its components is defined.

EFFECT: increases productivity of control in technological process of manufacturing, expands functional possibilities and expands the field of application.

3 dwg