| 摘要 |
A fluid flow rate and density measuring apparatus is disclosed. The apparatus includes a section of cylindrical conduit, a flow sensor housing for allowing fluid to pass through the open ends of the sensor housing as fluid flows through the conduit, and an elongated cylindrically symmetric structure located within the housing with its longitudinal axis aligned along that of the housing thereby forcing fluid through the annular gap between the exterior of the elongated cylindrically symmetric structure and the interior wall of the sensor housing. The apparatus includes a one-piece construction that includes the housing and the cylindrically symmetric structure. The cylindrically symmetric structure has a length-to-diameter ratio of at least 3:1 and reduces a cross-section area of the conduit to between 20% and 50% of an open inlet area of the conduit.
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