APPLICATION OF INTERFERENCE LIGHT FILTERS BASED ON DIELECTRIC AND SEMICONDUCTOR MATERIALS

Abstract

The problem of clean air is extremely relevant for modern Ukraine, namely, maintaining the state of the environment, human life, and theprospective development of the country's industry. Air pollution depends on the amount of emissions from various sources of pollution, to which pollution from military operations has been added. Moreover, there is currently a rather low level of development of the nvironmental control system. To solve the issues that have arisen in connection with the deterioration of the ecological situation in the country, there is a practical need to create information and mobile measuring systems, which include modern devices using productive, accurate and cheap sensors for detecting and measuring the maximum permissible concentration of pollutants of substances in the air, the article provides information on a comparative analysis of different models of carbon dioxide gas analyzers available on the Ukrainian market. According to the analysis, an information system for measuring concentrations of toxic, aggressive and poisonous gases is proposed, which includes a gas analyzer developed by the author. The information and measurement system combines small dimensions, sufficient measurement accuracy, the simplicity of the gas analyzer design, and the low cost of assembly. A mock-up of the Information and Measurement System stand was developed, which made it possible to measure the composition of the air using modern technologies.

The article provides information on the comparative analysis of different models of carbon dioxide gas analyzers available on the Ukrainian market. According to the analysis, an information system for measuring concentrations of toxic, aggressive and poisonous gases is proposed, which includes a gas analyzer developed by the author. The information and measurement system combines small dimensions, sufficient measurement accuracy, the simplicity of the gas analyzer design, and the low cost of assembly. A mock-up of the Information and Measurement System  stand was developed, which made it possible to measure the composition of the air using modern technologies. The article presents information on the designs of interference light filters based on dielectric and semiconductor materials for the visible region of the electromagnetic and infrared spectrum, which are used in the construction of a gas analyzer, and the method of manufacturing light filters is considered. To determine the design of the light filters, a special program was used to calculate the spectral characteristics of the filter depending on the number of film layers of the material and the sprayed material itself. The developed designs of narrowband light filters for laser emitters based on SI and SiO films are described. The application of the proposed narrow-band light filters for laser emitters based on films of SI and SiO today made it possible to achieve the creation of an information and measurement system for determining the composition of gases, which is relevant today with increased pollution of the environment, namely, air, which is absolutely necessary for the vital activity of living organisms .The obtained data are aimed at building complex equipment for monitoring the environment, which allows for the formation of reasonable recommendations, response, determination and control, will provide an opportunity to warn about air pollution, which will facilitate the provision of timely measures for its purification.