Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back The Methodology for Complex Adequacy Check of Mathematical Model of Inertia Type Flowmeter O.V. ZHILYAEV, V.N. KOVALNOGOV This paper contains the description of methodology for deeper adequacy check of mathematical model of inertia type flowmeter working process. The methodology comprises four checking stages. In addition to general tests of consistency and accuracy, the methodology includes the characteristic curves comparison using the kinematical analogy method and the examination of spectrum consistency of functions under exploration. The aims of this methodology using are to decrease the probability of incorrect decision about the validation of the model and to obtain additional information for further improvement of the model. Keywords: fluid mass flow, flowmeter, mathematical model adequacy. DOI: 10.25791/pribor.11.2025.1631 Pp. 43-51.