PRESSURE TUBE Russian patent published in 2000 - IPC

FIELD: measurement technology, measurement of parameters of spatial flow of gaseous and liquid media, determination of parameters of movement of solids, vessels, aircraft with reference to fluid media. SUBSTANCE: proposed pressure tube in the form of body of rotation includes head and cylindrical parts. Central and peripheral intake holes used to determine values and directions of flow velocity are arranged in surface of head part. Surface of cylindrical part has intake holes to measure static pressure. Increase of measurement accuracy of pressures in flow of liquid or gas and increase of sensitivity of pressure tubes to angles of wash of flow and value of velocity head due to growth of pressure differences acting on surfaces of tubes are achieved by addition to tube of body of rotation in the form of torus which surface has peripheral holes. Symmetry axis of torus is fair with symmetry axis of cylindrical part of tube. EFFECT: increased sensitivity and accuracy of measurement of pressures in flow of liquid or gas. 4 dwg