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发明公开
CN101542241A 用于测量管道中的介质的体积流量与质量流量的装置 失效 - 权利终止

用于测量管道中的介质的体积流量与质量流量的装置
摘要：
本发明涉及一种用于测量管道中的介质(11)的体积流量或质量流量的装置，所述装置带有：测量管(2)，介质(11)沿着测量管(2)的纵轴线(3)方向穿流测量管；磁体系统(6、7)，其产生穿过测量管(2)并基本横向于测量管(2)纵轴线(3)方向分布的磁场(B)；至少一个与介质(11)相耦合的测量电极(4、5)，其在基本垂直于磁场(B)的区域中布置在测量管(2)壁部的孔(27)中，测量电极(4、5)具有细长的电极杆(18)，电极杆(18)带有与介质相耦合的加宽的第一末端区域(19)，第一末端区域(19)的直径(D)大于测量管(2)壁部中的孔(27)的直径(d)，测量电极(4、5)放置于所述孔(27)中；和调节/评估单元(8)，其根据在至少一个测量电极(4、5)中感生的测量电压(U)来提供关于测量管(2)中介质(11)体积流量或质量流量的信息。在测量电极(4、5)电极杆(18)的相反的第二末端区域中，布置有至少一个径向凹槽(21)或径向凸起。另外，还设置有夹紧或卡位元件(22)，其在与至少一个径向凹槽(21)或凸起相嵌合的情况下，在轴向上将测量电极(4、5)固定在测量管(2)壁部的孔(27)中。
摘要（英）：

The invention relates to an apparatus for measuring the volumetric or mass flow rate of a medium (11) in a pipeline, said apparatus having a measuring tube (2) through which the medium (11) flows in the direction of the longitudinal axis (3) of the measuring tube (2), having a magnetic system (6, 7) which is configured in such a manner that it generates a magnetic field (B) which permeates the measuring tube (2) and runs essentially transverse to the longitudinal axis (3) of the measuring tube (2), having at least one measuring electrode (4, 5) which couples to the medium (11) and is arranged in a hole (27) in the wall of the measuring tube (2) in a region that is essentially perpendicular to the magnetic field (B), wherein the measuring electrode (4; 5) has an elongate electrode shaft (18) with a first widened end region (19) which couples to the medium and is dimensioned in such a manner that its diameter (D) is greater than the diameter (d) of the hole (27) in the wall of the measuring tube (2), in which the measuring electrode (4; 5) is placed, and having a control/evaluation unit (8) which uses the measurement voltage (U) induced in the at least one measuring electrode (4; 5) to provide information relating to the volumetric or mass flow rate of the medium (11) in the measuring tube (2). At least one radial depression (21) or a radial elevation is arranged in the opposite second end region of the electrode shaft (18) of the measuring electrode (4; 5). Furthermore, provision is made of a clamping or latching element (22) which is configured in such a manner that, in engagement with the at least one radial depression (21) or elevation, it fixes the measuring electrode (4; 5) in the hole (27) in the measuring tube (2) in the axial direction.

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