公开(公告)号：US09429454B2

公开(公告)日：2016-08-30

申请号：US14113637

申请日：2013-07-19

Applicant: Rosemount Inc.

Inventor： Yanghui Gao ,  Haipeng Wang

IPC: G01F1/58 ,  G01F1/60

CPC classification number: G01F1/588 ,  G01F1/586 ,  G01F1/60

Abstract: A magnetic flowmeter for measuring flow rate of a process fluid includes: a magnetic coil arranged to apply a magnetic field to the process fluid. A pair of electrodes electrically couple to the process fluid and are arranged to sense a voltage induced in the process fluid related to the applied magnetic field and the flow rate of the process fluid. A flow tube of a non-conductive material is arranged to receive a flow of the process fluid therethrough. The flow tube carries the magnetic coil and the pair of electrodes. Flow meter circuitry applies a current to the magnetic coil and receives the voltage sensed by the pair of electrodes. A magnetic field spreader is positioned proximate the magnetic coil and is arranged to spread the magnetic field emanating from the magnetic coil and direct the magnetic field into the flow tube. An exterior wrapper extends around the assembly and completes a magnetic circuit.

Abstract translation: 一种用于测量工艺流体的流量的磁流量计包括：设置成对过程流体施加磁场的磁性线圈。 一对电极电耦合到过程流体并被布置成感测与施加的磁场相关的过程流体中感应的电压和过程流体的流速。 非导电材料的流动管被布置成接收过程流体流过其中。 流管承载电磁线圈和一对电极。 流量计电路将电流施加到电磁线圈并接收由该对电极感测的电压。 磁场扩展器位于磁性线圈附近，并且布置成扩展从磁线圈发出的磁场并将磁场引导到流管中。 外包装围绕组件延伸并完成磁​​路。

公开(公告)号：US20150020607A1

公开(公告)日：2015-01-22

申请号：US14113637

申请日：2013-07-19

Applicant: Rosemount Inc.

Inventor： Yanghui Gao ,  Haipeng Wang

IPC: G01F1/58

CPC classification number: G01F1/588 ,  G01F1/586 ,  G01F1/60

Abstract: A magnetic flowmeter for measuring flow rate of a process fluid includes: a magnetic coil arranged to apply a magnetic field to the process fluid. A pair of electrodes electrically couple to the process fluid and are arranged to sense a voltage induced in the process fluid related to the applied magnetic field and the flow rate of the process fluid. A flow tube of a non-conductive material is arranged to receive a flow of the process fluid therethrough. The flow tube carries the magnetic coil and the pair of electrodes. Flow meter circuitry applies a current to the magnetic coil and receives the voltage sensed by the pair of electrodes. A magnetic field spreader is positioned proximate the magnetic coil and is arranged to spread the magnetic field emanating from the magnetic coil and direct the magnetic field into the flow tube. An exterior wrapper extends around the assembly and completes a magnetic circuit.

Abstract translation: 一种用于测量工艺流体的流量的磁流量计包括：设置成对过程流体施加磁场的磁性线圈。 一对电极电耦合到过程流体并被布置成感测与施加的磁场相关的过程流体中感应的电压和过程流体的流速。 非导电材料的流动管被布置成接收过程流体流过其中。 流管承载电磁线圈和一对电极。 流量计电路将电流施加到电磁线圈并接收由该对电极感测的电压。 磁场扩展器位于磁性线圈附近，并布置成扩展从磁线圈发出的磁场并将磁场引导到流管中。 外包装围绕组件延伸并完成磁​​路。