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    • 4. 发明授权
    • Flowmeter for liquids
    • 液体流量计
    • US4197456A
    • 1980-04-08
    • US921959
    • 1978-07-05
    • Robert L. FleischerHoward R. Hart, Jr.Antonio Mogro-Campero
    • Robert L. FleischerHoward R. Hart, Jr.Antonio Mogro-Campero
    • E21B47/10G01F1/704G01T7/02G01T1/161
    • E21B47/1015G01F1/7042G01T7/02
    • A passive device particularly for the improved measurement of the flow of a liquid is described. The device comprises a conduit defining a flow volume for the internal transit therethrough of a liquid to be received at one open end thereof and discharged from the other open end thereof; means disposed in communication with the interior of the conduit for introducing a preselected tracer substance into liquid flowing (full channel flow) through the flow volume; at least one enclosure having wall area permeable to the preselected tracer substance, this enclosure being disposed relative to the flow volume so that the liquid flow through the flow volume will contact the permeable wall area, and means disposed within the enclosure for detecting the presence of such preselected tracer substance as may enter the enclosure through the permeable wall area from the interior of the conduit.
    • 描述了特别用于改进液体流动测量的被动装置。 该装置包括导管,其限定用于在其一个开口端处接收并从其另一开口端排出的液体的内部转运通道的流量; 与管道内部连通的装置,用于将预先选定的示踪物质引入通过流量的液体流(全通道流); 至少一个具有可预选示踪物质可渗透的壁面积的外壳,该外壳相对于流动体积设置,使得通过流体积的液体流动将接触渗透壁区域,以及设置在外壳内的装置,用于检测 这种预选的示踪物质可以通过导管内部的可渗透壁区域进入外壳。