Abstract. Results of experimental checking a mathematical model of developed gas viscosity analyzer are presented. A generalized scheme and operation of the considered analyzer are described. The analyzer operation is based on measuring the time required for a fixed volume of the analyzed gas to expire through a capillary. Initial equations and theoretical assumptions used to develop the mathematical model of the effusion analyzer are discussed. An experimental setup for testing the developed mathe-matical model and its operation is created. Data obtained with the mathematical model are compared to results of experimental studies. The errors of the mathematical model are determined, conclusions are made about its adequacy and the possibility of further use for the design and calculation of effusion an-alyzers of gas viscosity with decreasing outcoming pressure.

Keywords: effusion analyzer, gas viscosity, mathematical model

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