ROTATING FLOW RATE CONVERTER Russian patent published in 2000 - IPC

FIELD: measuring equipment, in particular, measurement of liquid and gas flow rate. SUBSTANCE: rotating flow rate converter has casing, streamlined body positioned within casing, and flow rate pulsation-to-signal converting unit. Streamlined body is positioned in noncontinuous flow zone on casing portion downstream of main flow, behind part with reduced section. This part may be defined by annular or sectional projections on casing wall. Area of this part exceeds 0.9 of section area of part positioned rearward of front plane of streamlined body. EFFECT: increased efficiency by constant calibrated coefficient within wide range of Reynolds numbers. 3 cl, 4 dwg