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37 条记录 (耗时 0.016 秒)

    CONDUCTIVITY SENSOR
    1.
    发明授权
    CONDUCTIVITY SENSOR 有权
    电导率传感器

    公开(公告)号：EP2100131B1

    公开(公告)日：2016-11-23

    申请号：EP07858772.2

    申请日：2007-12-05

    申请人： ABB Limited

    发明人： HOWELL, Colin ,  ALBONE, David ,  COE, David Edward

    IPC分类号： G01N27/08 ,  A61M1/36 ,  G01N27/07

    CPC分类号： G01N27/07 ,  G01N27/08

    摘要： A conductivity sensor is described in which electrodes are held in a desired position within a housing of the sensor by a number of slots accurately positioned within the housing. In one embodiment the slots are integrally formed within the housing. Once the electrodes have been inserted into the slots a thermoset resin is poured into the housing and cured. A through bore is then drilled through the housing, the electrodes and the cured resin to form a flow conduit through the sensor. A dual frequency excitation technique is also described that allows a measurement to be obtained of a polarisation resistance of the electrodes. In one embodiment this measurement is stored and used to correct subsequent conductivity measurements.

    CONDUCTIVITY SENSOR
    2.
    发明公开
    CONDUCTIVITY SENSOR 有权
    电导率传感器

    公开(公告)号：EP2100131A1

    公开(公告)日：2009-09-16

    申请号：EP07858772.2

    申请日：2007-12-05

    申请人： ABB Limited

    发明人： HOWELL, Colin ,  ALBONE, David ,  COE, David Edward

    IPC分类号： G01N27/08 ,  A61M1/36

    CPC分类号： G01N27/07 ,  G01N27/08

    摘要： A conductivity sensor is described in which electrodes are held in a desired position within a housing of the sensor by a number of slots accurately positioned within the housing. In one embodiment the slots are integrally formed within the housing. Once the electrodes have been inserted into the slots a thermoset resin is poured into the housing and cured. A through bore is then drilled through the housing, the electrodes and the cured resin to form a flow conduit through the sensor. A dual frequency excitation technique is also described that allows a measurement to be obtained of a polarisation resistance of the electrodes. In one embodiment this measurement is stored and used to correct subsequent conductivity measurements.

    Electromagnetic flow meter insert
    3.
    发明公开
    Electromagnetic flow meter insert 有权
    插入的磁感应流量测量仪

    公开(公告)号：EP1574828A3

    公开(公告)日：2008-02-20

    申请号：EP05250935.3

    申请日：2005-02-18

    申请人： ABB Limited

    发明人： Lincoln, David ,  Armitage, Michael ,  Burton, David

    IPC分类号： G01F1/58

    CPC分类号： G01F1/58 ,  G01F1/586 ,  Y10T29/49002 ,  Y10T29/4902

    摘要： A method of manufacturing an electromagnetic flow meter assembly is provided comprising: forming an insert (110) from a deformable material; forming at least one reinforcing component (112); arranging the reinforcing component (112) around a portion of the insert (110); bonding the reinforcing component (112) to the insert (110) to reinforce the insert (110) against deformation under the application of pressure. An electromagnetic flowmeter assembly is also provided comprising: an insert (110) for insertion into a flow conduit, wherein at least a portion of the insert (110) is formed of a deformable non-ferromagnetic material wherein the insert (110) comprises an inlet section (128), a measuring section and an outlet section (126); at least one reinforcing component (112) surrounding the measuring section of the insert (110) to reinforce the insert (110) against deformation under the application of pressure.

    Electromagnetic flow meter
    5.
    发明公开
    Electromagnetic flow meter 审中-公开
    电磁流量计

    公开(公告)号：EP1521062A3

    公开(公告)日：2007-03-21

    申请号：EP04253946.0

    申请日：2004-06-30

    申请人： ABB Limited

    发明人： Turner, Roger c/o ABB Limited

    IPC分类号： G01F1/58

    CPC分类号： G01F1/588

    摘要： An electromagnetic flow meter is disclosed which can be used to measure flow in low conductivity fluids, for example alcohol, turpentine, oil or other organic solvents. In one embodiment, the electromagnetic flow meter includes an elongate flow conduit having a direction of elongation corresponding to a direction of fluid flow, magnetic field generating means for generating a magnetic field across the flow conduit and potential sensing electrodes for sensing a potential generated by the magnetic field in a fluid flowing through the conduit. Both the field generating means and the potential sensing electrodes of the flow meter are elongate in the direction of flow.

    摘要翻译： 公开了一种电磁流量计，其可用于测量低电导率流体例如酒精，松节油，油或其他有机溶剂中的流动。 在一个实施例中，电磁流量计包括具有与流体流动方向相对应的伸长方向的细长流动导管，用于产生穿过流动导管的磁场的磁场产生装置以及用于感测由流体流动方向产生的电势的电势感测电极 流过导管的流体中的磁场。 流量计的场产生装置和电位传感电极都沿流动方向延伸。

    Electromagnetic flow meter
    6.
    发明公开
    Electromagnetic flow meter 审中-公开
    Elektromagnetischer Durchflussmesser

    公开(公告)号：EP1464929A2

    公开(公告)日：2004-10-06

    申请号：EP04251978.5

    申请日：2004-04-01

    申请人： ABB Limited

    发明人： Wray, Troy, ABB Limited

    IPC分类号： G01F1/58 ,  G01F1/60

    CPC分类号： G01F1/60

    摘要： There is described herein a method of obtaining a measure of flow from an electromagnetic flow meter having at least one field generating coil and potential sensing electrodes. A composite excitation waveform is applied to the field-generating coil. The composite excitation waveform comprises at least two frequency components and a plurality of frequency components are simultaneously present for at least a portion of the waveform. The potential sensed by the potential sensing electrodes is sampled to produce a sampled output and the sampled output is correlated with a composite waveform based on the composite excitation waveform. The result of the correlating is used to derive a measure of flow.

    摘要翻译： 这里描述了从具有至少一个场产生线圈和电位感测电极的电磁流量计获得流量测量的方法。 复合激励波形被施加到场产生线圈。 复合激励波形包括至少两个频率分量，并且对波形的至少一部分同时存在多个频率分量。 由电位感测电极感测的电位被采样以产生采样输出，并且采样输出与基于复合激励波形的复合波形相关。 相关的结果用于导出流量测量。