Pisarets A. The turbine type flow rate measuring transducer with hydrodynamic balancing sensitive element

The dissertation work is devoted to metrological and operating characteristics improvement of velocity turbine flow rate transducers by hydrodynamic balancing of their sensors, hydrodynamic balancing theory evolution and system creation for optimal designing of velocity flow rate measuring devices with axial sensitive element and high metrological characteristics. At work the mathematic model of velocity turbine flow rate transducer with hydrodynamic balancing sensitive element by means of irregular static pressure field creation along the internal body surface of initial flow transducer is shown. Theoretical and experimental investigations were realized to determine influence of sensor's geometric parameters of turbine initial flow transducer on the device metrological characteristics. The adequacy of mathematic model and experimental data was appreciated by statistical criteria of Fisher and Student. Geometrical parameters of measuring chamber primary transducer were optimized to improve the metrological characteristics. The algorithm and software to investigate the metrological characteristics of the device and optimize parameters of the turbine initial flow rate transducer with hydrodynamic balancing sensitive element were created.