THE METHOD OF TECHNOLOGY GLANCE CONTROL OF TAPE AND SHEET MATERIALS.

This study demonstrates the method of technology glance control of tape and sheet materials based on the measurement of the ratio of the reflected mirror light flow from a controllable material to a total falling light flow. We show that it is necessary to carry out the glance's measurement of various types of materials (paper, cardboard, wood-fibrous plates etc.) at the angles not less than 75°. It ensures the greatest sensitivity of a method and the least influence of material chromaticity. In line with the standards of the International Commission on Illumination, the error of the method measurement does not exceed 2 %. The method is recommended to be used in the glance meter structure of information-measuring systems of technology control in such branches as paper, chemical, printing and woodworking industries. [ABSTRACT FROM AUTHOR]