THE DETERMINATION OF OPTICAL DENSITY OF GLASS AS A GENERAL FEATURE DURING THE IDENTIFICATION OF THE WHOLE BY ITS PARTS

Abstract

The purpose of the article is to evaluate the possibility of determining the optical density of transparent materials as their general feature while identifying the whole by its parts using, instead of expensive equipment, publicly available matrix photodetectors: modern charge-coupled devices – CCD-matrixes and or complementary logic transistors – CMOS-matrixes (metal–oxide–semiconductor), the basis of which is their ability to perceive the smallest changes in the brightness of the object. The research confirmed the feasibility of using these matrix photodetectors to record the attenuation of the intensity of incident light as it passes through transparent glass plates, to obtain digital images from photographs of
plates of glass of equal thickness (5 mm) and approximately the same surface area (625 mm2) in uniform light, to determine by the magnitude of this attenuation the glass optical density. Developed on the basis of the MATLAB numerical analysis suite of applications, it is a working computer program that enables automatic comparative analysis of the examined glass samples by their digital images and by which the optical density of the glass can be obtained. The purpose of the article was achieved through a systematic approach of solving research issues, and the reliability of the obtained results and conclusions is ensured by the use of different methods namely: physical – to study the physical characteristics of the material; mathematical – to calculate the data obtained; general, in particular, synthesis and analysis, including statistical  one, within which the forms of interaction of elements of the whole as well as generalizations are revealed.
Keywords: identification of the whole by its parts; traces research; optical density; CCD-structure, CMOS-structure.