THE PRINCIPAL COMPONENT ANALYSIS AS A METHOD FOR DETERMINING THE HYDROGEN CONCENTRATION IN MULTICOMPONENT MIXTURES

In this study, the possibility of determining the concentration of hydrogen in a multicomponent gas mixture using the principal component method is investigated. Based on the results obtained, it was found that, regardless of the number of sensors, the obtained values of the main components form linear dependences of concentration, that are proportional to each other. At the same time, a different concentration of hydrogen, pure or in a multicomponent mixture, is uniquely determined. The research methodology is defined, and the results are presented, showing that the principal component method allows both to visually distinguish the responses of sensors at different concentrations, and to obtain the concentration value using additional mathematical operations.