公开(公告)号：US4416148A

公开(公告)日：1983-11-22

申请号：US232091

申请日：1981-02-06

申请人： John P. Klus ,  Everett E. Gibbons ,  Eric L. Brodsky ,  Victor P. Janule

发明人： John P. Klus ,  Everett E. Gibbons ,  Eric L. Brodsky ,  Victor P. Janule

IPC分类号： G01N13/02

CPC分类号： G01N13/02 ,  G01N2013/0266

摘要： Apparatus for measuring the surface tension of a liquid contained in a flow-through pressure vessel (60) includes a pair of tubes (50,51) having small and large orifices positioned below the surface of the liquid. A source (10) provides gas through a pressure regulator (15) and a flow regulator (30) to the tubes. The bubble rate from the orifices is controlled by needle valves (40,41) and is made independent of the pressure in the vessel by the flow regulator (30). Differential pressure transducer (70) measures the pressure in the tubes as an indication of surface tension. Check valves (72,73) protect the transducer, and a thermometer (65) measures liquid temperature.

摘要翻译： 用于测量包含在流通压力容器（60）中的液体的表面张力的装置包括一对具有位于液体表面下方的小孔和大孔的管（50,51）。 源（10）通过压力调节器（15）和流量调节器（30）向管提供气体。 来自孔的气泡率由针阀（40,41）控制，并且通过流量调节器（30）独立于容器中的压力而被制成。 差压传感器（70）测量管中的压力作为表面张力的指示。 止回阀（72,73）保护换能器，温度计（65）可测量液体温度。