公开(公告)号：US07509879B2

公开(公告)日：2009-03-31

申请号：US10580247

申请日：2004-11-04

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01F1/84

CPC分类号： G01F1/8409 ,  G01F1/8413 ,  G01F1/849 ,  G01N9/002

摘要： A measurement pickup, or transducer, includes at least one measuring tube for the conveying of a fluid. The measuring tube has an inlet end and an outlet end and vibrates at least at times. For enabling the fluid to be measured to flow through the measuring tube, the measuring tube communicates, via a first tube segment opening into the inlet end and via a second tube segment opening into the outlet end, with a pipeline connected therewith. For the oscillatable holding of the measuring tube, the measurement pickup further includes a support element having a first end piece containing a passageway for the securement of the first tube segment and having a second end piece containing a passageway for the securement of the second tube segment. Each of the two tube segments extends through its respective one of the two passageways and each of the two passageways has an inner diameter, which is greater than an outer diameter of its associated tube segment, so that an intermediate space is formed between each of the associated tube segments and end pieces. The measurement pickup further includes at least one, preferably metal, first spring element pushed onto one of the two tube segments. The spring element fills the intermediate space formed between tube segment and end piece at least partially, with the spring element being arranged in the intermediate space in such a manner that it contacts, at least sectionally, both its associated tube segment and also its associated end piece in such a manner that it is subjected, at least sectionally, to radially acting, deformation forces. As a result of elastic deformations accompanying such deformation forces, the spring element is held pressed against the associated tube segment and the associated end piece, whereby such tube segment is locked securely in the associated passageway.

摘要翻译： 测量拾取器或换能器包括用于输送流体的至少一个测量管。 测量管具有入口端和出口端，并且至少有时振动。 为了使测量流体能够流过测量管，测量管经由通过入口端的第一管段开口和通向与出口端连接的管道与第二管段连通。 对于测量管的可振荡保持，测量拾取器还包括支撑元件，该支撑元件具有第一端部件，该第一端部件包含用于固定第一管段的通道，并且具有第二端部件，该第二端部件包含用于固定第二管段 。 两个管段中的每一个延伸通过其两个通道中的相应一个，两个通道中的每一个具有大于其相关管段的外径的内径，从而在每个通道之间形成中间空间 相关的管段和端部件。 测量拾取器还包括被推到两个管段中的一个上的至少一个，优选地是金属的第一弹簧元件。 弹簧元件至少部分地填充在管段和端件之间形成的中间空间，其中弹簧元件以这样的方式布置在中间空间中，使得其至少部分地与其相关联的管段及其相关联的端部接触 至少部分地受到径向作用的变形力的作用。 由于伴随这种变形力的弹性变形，弹簧元件被保持压靠在相关联的管段和相关联的端部件上，由此这种管段牢固地锁定在相关的通道中。

公开(公告)号：US07360452B2

公开(公告)日：2008-04-22

申请号：US11645059

申请日：2006-12-26

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01F1/84

CPC分类号： G01F1/74 ,  G01F1/8409 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8431 ,  G01F1/8436 ,  G01F1/849 ,  G01F15/024 ,  G01F15/14

摘要： The measuring device comprises, for measuring multi phase mixture, a vibratory-type transducer and a measuring device electronics electrically coupled with the vibratory-type transducer. The transducer includes at least one measuring tube inserted into the course of the pipeline. An exciter arrangement acts on the measuring tube for causing the at least one measuring tube to vibrate. A sensor arrangement senses vibrations of the at least one measuring tube and delivers at least one oscillation measurement signal representing oscillations of the measuring tube. Further, the measuring device electronics delivers an excitation current driving the exciter arrangement. The measuring device is adapted to compensating measurement errors, induced due to the presence of multi phase mixture, based on a movin resonator model (MRM).

公开(公告)号：US20070131024A1

公开(公告)日：2007-06-14

申请号：US11605260

申请日：2006-11-29

申请人： Wolfgang Drahm ,  Alfred Rieder

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01N11/16 ,  G01F25/00 ,  G01F1/84

CPC分类号： G01N11/16 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/8431 ,  G01F1/8468 ,  G01F1/849 ,  G01N9/002 ,  G01N11/162 ,  G01N11/167 ,  G01N2009/006

摘要： The viscometer provides a viscosity value (Xη) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driven by an excitation assembly, the flow tube is vibrated so that friction forces are produced in the fluid. The viscometer further includes meter electronics which feed an excitation current (iexc) into the excitation assembly. By means of the meter electronics, a first internal intermediate value (X1) is formed, which corresponds with the excitation current (iexc) and thus represents the friction forces acting in the fluid. According to the invention, a second internal intermediate value (X2), representing inhomogeneities in the fluid, is generated in the meter electronics, which then determine the viscosity value (Xη) using the two intermediate values (X1, X2). The first internal intermediate value (X1) is preferably normalized by means of an amplitude control signal (yAM) for the excitation current (iexc), the amplitude control signal corresponding with the vibrations of the flow tube. As a result, the viscosity value (Xη) provided by the viscometer is highly accurate and robust, particularly independently of the position of installation of the flow tube.

公开(公告)号：US20050241372A1

公开(公告)日：2005-11-03

申请号：US11178431

申请日：2005-07-12

申请人： Wolfgang Drahm ,  Alfred Rieder

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01N11/16

CPC分类号： G01N11/16 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/8431 ,  G01F1/8468 ,  G01F1/849 ,  G01N9/002 ,  G01N11/162 ,  G01N11/167 ,  G01N2009/006

摘要： The viscometer provides a viscosity value (Xη) which represents the viscosity of a fluid flowing in a pipe connected thereto. It comprises a vibratory transducer with at least one flow tube for conducting the fluid, which communicates with the pipe. Driven by an excitation assembly, the flow tube is vibrated so that friction forces are produced in the fluid. The viscometer further includes meter electronics which feed an excitation current (iexc) into the excitation assembly. By means of the meter electronics, a first internal intermediate value (X1) is formed, which corresponds with the excitation current (iexc) and thus represents the friction forces acting in the fluid. According to the invention, a second internal intermediate value (X2), representing inhomogeneities in the fluid, is generated in the meter electronics, which then determine the viscosity value (Xη) using the two intermediate values (X1, X2). The first internal intermediate value (X1) is preferably normalized by means of an amplitude control signal (yAM) for the excitation current (iexc), the amplitude control signal corresponding with the vibrations of the flow tube. As a result, the viscosity value (Xη) provided by the viscometer is highly accurate and robust, particularly independently of the position of installation of the flow tube.

公开(公告)号：US06880410B2

公开(公告)日：2005-04-19

申请号：US10386930

申请日：2003-03-13

申请人： Wolfgang Drahm ,  Alfred Rieder

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01F1/58 ,  G01F1/66 ,  G01F1/74 ,  G01F1/80 ,  G01F1/84 ,  G01N9/00

CPC分类号： G01F1/8409 ,  G01F1/58 ,  G01F1/662 ,  G01F1/74 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/849 ,  G01N9/002

摘要： The transducer serves to generate a measurement signal corresponding to at least one physical parameter of a fluid flowing in a pipe. It comprises a flow tube of predeterminable lumen for conducting the fluid which communicates with the pipe at the inlet and outlet ends. In operation, an excitation assembly causes reactions, particularly reaction forces, in the fluid within the at least one flow tube in a non-invasive manner, which are sensed and converted into measurement signals representative thereof by means of a sensor arrangement. To obtain as axisymmetric a density distribution in the fluid as possible, means are provided in an inlet area of the transducer or at least in the vicinity thereof which cause a swirl in the entering fluid and, thus, a rotational motion in the fluid within the flow-tube lumen about an axis of rotation lying in the direction of fluid flow. As a result of the axisymmetric density distribution thus produced, the transducer provides accurate and robust measurement signals even in the case of inhomogeneous, particularly multiphase, fluids, and substantially independently of the mounting position of the flow tube.

摘要翻译： 换能器用于产生对应于在管道中流动的流体的至少一个物理参数的测量信号。 它包括一个可预定的流明管，用于传导在入口和出口端与管连通的流体。 在操作中，激发组件以非侵入性方式在所述至少一个流管内的流体中引起反应，特别是反作用力，其通过传感器装置被感测并转换成其代表的测量信号。 为了尽可能地获得流体中的轴对称密度分布，在换能​​器的入口区域或至少在其附近提供了在进入流体中引起涡流的因素，并且因此在流体内的旋转运动 围绕围绕流体流动方向的旋转轴线的流管内腔。 作为由此产生的轴对称密度分布的结果，即使在不均匀的，特别是多相流体的情况下，传感器也提供精确和鲁棒的测量信号，并且基本上独立于流管的安装位置。

公开(公告)号：US06807866B2

公开(公告)日：2004-10-26

申请号：US10079828

申请日：2002-02-22

申请人： Wolfgang Drahm ,  Alfred Rieder

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01F184

CPC分类号： G01F1/8413 ,  G01F1/8472

摘要： An electromechanical transducer of the Coriolis type which provides an output in response to the mass flow rate of a fluid flowing in a pipe. The transducer has a flow tube, curved symmetrically with respect to an axis of symmetry lying in a tube plane, for conducting the fluid. It also has a rigid support body for mounting the flow tube, with the flow tube being fixed to the rigid support body at both an inlet end and an outlet end. It further has an excitation system which in operation excites the flow tube into vibrations in a first eigenmode which is symmetrical in the tube plane.

摘要翻译： 科里奥利型机电传感器，其响应于在管道中流动的流体的质量流量提供输出。 传感器具有流管，相对于位于管平面中的对称轴对称地弯曲，用于传导流体。 它还具有用于安装流动管的刚性支撑体，流动管在入口端和出口端处固定到刚性支撑体。 它还具有激励系统，其在操作中激励流管以在管平面中对称的第一本征模的振动。

公开(公告)号：US07654153B2

公开(公告)日：2010-02-02

申请号：US12078436

申请日：2008-03-31

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01F1/84

CPC分类号： G01F1/8409 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/849 ,  G01N9/002 ,  G01N11/167 ,  G01N2203/0025 ,  G01N2203/0094 ,  G01N2203/0676

摘要： To conduct a fluid, the transducer has a flow tube which in operation is vibrated by an excitation assembly and whose inlet-side and outlet-side vibrations are sensed by means of a sensor arrangement. To produce shear forces in the fluid, the flow tube is at least intermittently excited into torsional vibrations about a longitudinal flow-tube axis. The transducer further comprises a torsional vibration absorber which is fixed to the flow tube and which in operation covibrates with the torsionally vibrating flow tube, thus producing reactive torques which at least partially balance torques developed in the vibrating flow tube. One of the advantages of the transducer disclosed is that it is dynamically balanced to a large extent even in the face of variations in fluid density or viscosity.

摘要翻译： 为了传导流体，传感器具有流动管，其在操作中由激励组件振动，并且其流体侧和出口侧振动通过传感器装置被感测。 为了在流体中产生剪切力，流管至少间歇地被激发成围绕纵向流管轴线的扭转振动。 换能器还包括固定到流管的扭转振动吸收器，其在运行中与扭转振动的流动管共振，从而产生至少部分平衡在振动流管中产生的扭矩的反作用扭矩。 所公开的传感器的优点之一是即使在流体密度或粘度的变化的情况下也能在很大程度上动态平衡。

公开(公告)号：US07472607B2

公开(公告)日：2009-01-06

申请号：US11599478

申请日：2006-11-15

申请人： Ennio Bitto ,  Gerhard Eckert ,  Rainer Lorenz ,  Alfred Rieder ,  Christian Schuetze ,  Michal Fuchs ,  Martin Anklin-Imhof ,  Wolfgang Drahm ,  Leonhard Probst

发明人： Ennio Bitto ,  Gerhard Eckert ,  Rainer Lorenz ,  Alfred Rieder ,  Christian Schuetze ,  Michal Fuchs ,  Martin Anklin-Imhof ,  Wolfgang Drahm ,  Leonhard Probst

IPC分类号： G01F1/84

CPC分类号： G01F1/849 ,  G01F1/8404 ,  G01F1/8409 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427

摘要： The measurement transducer includes: A measuring tube vibrating at least at times during operation and serving for the conveying of a medium, wherein the measuring tube communicates with a pipeline via an inlet tube piece at an inlet end and an outlet tube piece at an outlet end; a counteroscillator, which is affixed to the measuring tube on the inlet end to form a first coupling zone and affixed to the measuring tube on the outlet end to form a second coupling zone; and a first cantilever for producing bending moments in the inlet tube piece and coupled with the inlet tube piece and the measuring tube essentially rigidly in the area of the first coupling zone and having a center of mass lying in the region of the inlet tube piece, as well as a second cantilever for producing bending moments in the outlet tube piece and coupled essentially rigidly with the outlet tube piece and the measuring tube in the region of the second coupling zone and having a center of mass lying in the region of the outlet tube piece. The measurement transducer of the invention is especially suited also for measuring tubes having large nominal diameters of more than 50 mm.

公开(公告)号：US20080184817A1

公开(公告)日：2008-08-07

申请号：US12078436

申请日：2008-03-31

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01F1/84

CPC分类号： G01F1/8409 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/849 ,  G01N9/002 ,  G01N11/167 ,  G01N2203/0025 ,  G01N2203/0094 ,  G01N2203/0676

摘要： To conduct a fluid, the transducer has a flow tube which in operation is vibrated by an excitation assembly and whose inlet-side and outlet-side vibrations are sensed by means of a sensor arrangement. To produce shear forces in the fluid, the flow tube is at least intermittently excited into torsional vibrations about a longitudinal flow-tube axis. The transducer further comprises a torsional vibration absorber which is fixed to the flow tube and which in operation covibrates with the torsionally vibrating flow tube, thus producing reactive torques which at least partially balance torques developed in the vibrating flow tube. One of the advantages of the transducer disclosed is that it is dynamically balanced to a large extent even in the face of variations in fluid density or viscosity.

摘要翻译： 为了传导流体，传感器具有流动管，其在操作中由激励组件振动，并且其流体侧和出口侧振动通过传感器装置被感测。 为了在流体中产生剪切力，流管至少间歇地被激发成围绕纵向流管轴线的扭转振动。 换能器还包括固定到流管的扭转振动吸收器，其在运行中与扭转振动流管共振，由此产生至少部分平衡在振动流管中产生的扭矩的反作用扭矩。 所公开的传感器的优点之一是即使在流体密度或粘度的变化的情况下也能在很大程度上动态平衡。

公开(公告)号：US20070277624A1

公开(公告)日：2007-12-06

申请号：US10580247

申请日：2004-11-04

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01F1/80

CPC分类号： G01F1/8409 ,  G01F1/8413 ,  G01F1/849 ,  G01N9/002

摘要： A measurement pickup, or transducer, includes at least one measuring tube for the conveying of a fluid. The measuring tube has an inlet end and an outlet end and vibrates at least at times. For enabling the fluid to be measured to flow through the measuring tube, the measuring tube communicates, via a first tube segment opening into the inlet end and via a second tube segment opening into the outlet end, with a pipeline connected therewith. For the oscillatable holding of the measuring tube, the measurement pickup further includes a support element having a first end piece containing a passageway for the securement of the first tube segment and having a second end piece containing a passageway for the securement of the second tube segment. Each of the two tube segments extends through its respective one of the two passageways and each of the two passageways has an inner diameter, which is greater than an outer diameter of its associated tube segment, so that an intermediate space is formed between each of the associated tube segments and end pieces. The measurement pickup further includes at least one, preferably metal, first spring element pushed onto one of the two tube segments. The spring element fills the intermediate space formed between tube segment and end piece at least partially, with the spring element being arranged in the intermediate space in such a manner that it contacts, at least sectionally, both its associated tube segment and also its associated end piece in such a manner that it is subjected, at least sectionally, to radially acting, deformation forces. As a result of elastic deformations accompanying such deformation forces, the spring element is held pressed against the associated tube segment and the associated end piece, whereby such tube segment is locked securely in the associated passageway.

摘要翻译： 测量拾取器或换能器包括用于输送流体的至少一个测量管。 测量管具有入口端和出口端，并且至少有时振动。 为了使测量流体能够流过测量管，测量管经由通过入口端的第一管段开口和通向与出口端连接的管道与第二管段连通。 对于测量管的可振荡保持，测量拾取器还包括支撑元件，该支撑元件具有第一端部件，该第一端部件包含用于固定第一管段的通道，并且具有第二端部件，该第二端部件包含用于固定第二管段 。 两个管段中的每一个延伸通过其两个通道中的相应一个，两个通道中的每一个具有大于其相关管段的外径的内径，从而在每个通道之间形成中间空间 相关的管段和端部件。 测量拾取器还包括被推到两个管段中的一个上的至少一个，优选地是金属的第一弹簧元件。 弹簧元件至少部分地填充在管段和端件之间形成的中间空间，其中弹簧元件以这样的方式布置在中间空间中，使得其至少部分地与其相关联的管段及其相关联的端部接触 至少部分地受到径向作用的变形力的作用。 由于伴随这种变形力的弹性变形，弹簧元件被保持压靠在相关联的管段和相关联的端部件上，由此这种管段牢固地锁定在相关的通道中。