Abstract: | One presents the theoretical and experimental research made in the Laboratory of Flow-meters and their Calibration Installations, Department of Hydraulics and Hydraulic Machinery, University POLITEHNICA of Bucharest, concerning the realization in the Automation Design Institute - IPA in Bucharest, of the Romanian flow-meters working with liquids and gases on the principle of alternate vortex detachment behind a flat plate placed in a conduit, the pressure alternate oscillations being measured with two piezoceramic tablets. |