公开(公告)号：US4612814A

公开(公告)日：1986-09-23

申请号：US508768

申请日：1983-06-29

申请人： Keith S. Campman

发明人： Keith S. Campman

IPC分类号： G01F1/20 ,  G01F1/80 ,  G01F1/28

CPC分类号： G01F1/80 ,  G01F1/206

摘要： The instrument disclosed herein is designed for measuring flow rates and densities of moving fluid streams, including liquids, gases, slurries, and fluids which contain solid materials. In one embodiment of this instrument, a conduit section, which has a 90 degree bend therein, is placed in a transfer line which carries the fluid stream to its use point. Defined within the conduit section is a chamber, which is located at the bend in the conduit. Installed within the chamber is a force measuring transducer and a piston, which is in contact with the diaphragm assembly of the transducer. In operation, part of the moving fluid is diverted into the chamber, to equalize fluid pressure across the diaphragm assembly of the transducer and the piston. This removes the effect of fluid pressure on the flow rate and density measurement, and allows the moving fluid to displace the piston by the force exerted by the fluid. The transducer registers the force and transmits it to a computer system, which converts it to a flow rate as a function of the force. A separate transducer measures the velocity of the stream and this measurement is converted to a density value.

摘要翻译： 本文公开的仪器被设计用于测量包含液体，气体，浆液和含有固体材料的流体的流动流的流速和密度。 在该仪器的一个实施例中，在其中具有90度弯曲的管道部分放置在将流体流运送到其使用点的输送管线中。 在导管部分内定义的是一个位于导管弯头处的腔室。 安装在腔室内的是力测量传感器和与换能器的隔膜组件接触的活塞。 在操作中，部分移动流体被转移到腔室中，以平衡换能器的隔膜组件和活塞之间的流体压力。 这消除了流体压力对流速和密度测量的影响，并允许移动流体通过流体施加的力来移动活塞。 传感器注册力并将其传输到计算机系统，该计算机系统将其转换为作为力的函数的流量。 单独的传感器测量流的速度，该测量被转换为密度值。

公开(公告)号：US4513625A

公开(公告)日：1985-04-30

申请号：US509478

申请日：1983-06-30

申请人： Keith S. Campman ,  William B. Ernst

发明人： Keith S. Campman ,  William B. Ernst

IPC分类号： G01F1/76 ,  G01F1/28

CPC分类号： G01F1/76

摘要： The instrument disclosed herein is designed for measuring flow rates and densities of moving fluid streams, including liquids, gases, slurries, and fluids which contain solid materials. Basic components of this instrument are a dynamic leg and a static leg, and flexible connections in each leg which allow for displacement caused by the force of the moving fluid. Each leg is defined by a conduit member having several bends therein, which are joined by straight sections. The legs are held in physical contact along one of the straight sections, and a displacement transducer unit is installed at this point. In operation, part of the incoming fluid to be measured for flow rate fills the static leg and remains in this leg. After the static leg is full, all of the incoming fluid moves through the dynamic leg, and fluid pressure is in equilibrium within the system. This removes the effect of fluid pressure on the flow rate and density measurement, so that the displacement transducer senses and records only the force generated by the moving fluids. Flow rate is then calculated as a function of this force. A separate transducer measures the velocity of the stream, and this measurement is converted to a density value.

摘要翻译： 本文公开的仪器被设计用于测量包含液体，气体，浆液和含有固体材料的流体的流动流的流速和密度。 该仪器的基本部件是动态腿部和静态腿部，并且每个腿部中的柔性连接件允许由移动流体的力引起的位移。 每个腿由其中具有多个弯曲部的导管构件限定，其通过直线段连接。 这些腿沿直线段之一保持物理接触，此时安装位移传感器单元。 在操作中，要测量的流量的一部分流量填充静止腿并保留在该腿中。 在静腿充满之后，所有进入的流体都通过动力腿移动，并且流体压力在系统内处于平衡状态。 这消除了流体压力对流速和密度测量的影响，使得位移传感器仅感测并记录由移动流体产生的力。 然后根据该力计算流量。 单独的传感器测量流的速度，并将该测量值转换为密度值。