公开(公告)号：US20060000292A1

公开(公告)日：2006-01-05

申请号：US11212718

申请日：2005-08-29

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.

公开(公告)号：US20050092104A1

公开(公告)日：2005-05-05

申请号：US11006660

申请日：2004-12-08

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 ,  G01F1/8418 ,  G01F1/849

摘要： To conduct a fluid, the transducer has a flow tube which in use is vibrated by an excitation system and whose inlet-side and outlet-side vibrations are detected by means of a sensor system. In response to transverse forces produced in the vibrating flow tube, the latter is, at least temporarily, laterally displaced from an assigned static rest position. To improve the dynamic balance of the transducer, a first cantilever and a second cantilever are rigidly fixed to an inlet-side tube section and an outlet-side tube section, respectively. By means of the cantilevers, the inlet-side and outlet-side tube sections are deformed as a result of lateral displacements of the flow tube. This produces counterforces which at least partially counterbalance the transverse forces produced in the vibrating flow tube. One advantage of the proposed transducer is that it is well balanced even during variations in fluid density.

摘要翻译： 为了传导流体，换能器具有流动管，其在使用中由激励系统振动，并且其流入侧和出口侧振动通过传感器系统检测。 响应于在振动流管中产生的横向力，后者至少临时地从分配的静止静止位置横向移位。 为了改善传感器的动平衡，第一悬臂和第二悬臂分别刚性固定到入口侧管段和出口侧管段。 通过悬臂，入口侧和出口侧管段由于流动管的横向位移而变形。 这产生了至少部分地抵消在振动流管中产生的横向力的抵抗力。 所提出的传感器的一个优点是即使在流体密度的变化期间它也是平衡的。

公开(公告)号：US06691583B2

公开(公告)日：2004-02-17

申请号：US10127597

申请日：2002-04-23

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G21F184

CPC分类号： G01F1/8409 ,  G01F1/8418 ,  G01F1/849

摘要： To conduct a fluid, the transducer has a flow tube which in use is vibrated by an excitation system and whose inlet-side and outlet-side vibrations are detected by means of a sensor system. In response to transverse forces produced in the vibrating flow tube, the latter is, at least temporarily, laterally displaced from an assigned static rest position. To improve the dynamic balance of the transducer, a first cantilever and a second cantilever are rigidly fixed to an inlet-side tube section and an outlet-side tube section, respectively. By means of the cantilevers, the inlet-side and outlet-side tube sections are deformed as a result of lateral displacements of the flow tube. This produces counterforces which at least partially counterbalance the transverse forces produced in the vibrating flow tube. One advantage of the proposed transducer is that it is well balanced even during variations in fluid density.

摘要翻译： 为了传导流体，换能器具有流动管，其在使用中由激励系统振动，并且其流入侧和出口侧振动通过传感器系统检测。 响应于在振动流管中产生的横向力，后者至少临时地从分配的静止静止位置横向移位。 为了改善传感器的动平衡，第一悬臂和第二悬臂分别刚性固定到入口侧管段和出口侧管段。 通过悬臂，入口侧和出口侧管段由于流动管的横向位移而变形。 这产生了至少部分地抵消在振动流管中产生的横向力的抵抗力。 所提出的传感器的一个优点是即使在流体密度的变化期间它也是平衡的。

公开(公告)号：US06360614B1

公开(公告)日：2002-03-26

申请号：US09283401

申请日：1999-04-01

申请人： Wolfgang Drahm ,  Alfred Rieder ,  Alfred Wenger ,  Ole Koudal

发明人： Wolfgang Drahm ,  Alfred Rieder ,  Alfred Wenger ,  Ole Koudal

IPC分类号： G01F184

CPC分类号： G01F1/8409 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/849 ,  G01F1/8495

摘要： This method serves to apply the clamp-on design principle to Coriolis mass flow meters and sensors. A first isolating body (4, 4′) and a second isolating body (5, 5′) having identical masses are fixed to the outside of a pipe (1) or a measuring tube (1′, 10, 10′, 10″) at a predetermined distance L from each other to define a measuring length forming a pipe or tube section (11; 11′; 11″). These masses are substantially greater than the mass of the pipe or tube section. If two measuring tubes are present, clamping bodies (111, 112; 111′, 112′) are used. A vibration exciter (12) attached in the middle of the pipe or tube section excites the latter in a third mode of vibration at a frequency f between 500 Hz and 1000 Hz. The distance L is calculated by the following formula: L=5.5·2½·(2&pgr;f)−½·{E(r4a−r4i)/(dM+dF)}−¼, where ra is the outside diameter of the pipe or tube section, ri is the inside diameter of the pipe or tube section, E is the modulus of elasticity of the material of the pipe or tube section, dM is the product of the density of the material of the pipe or tube section and the cross-sectional area of the wall of the pipe or tube section, and dF is the product of the mean density of the fluids and the cross-sectional area of the lumen of the pipe or tube section. Two sensing elements (13, 14) are fixed to the pipe or tube section at positions where, if the pipe or tube section is excited in the third mode of vibration, a deflection of the pipe or tube section caused by a disturbance originating from the pipe has a first and a second zero, respectively.

摘要翻译： 该方法用于将夹紧设计原理应用于科里奥利质量流量计和传感器。 具有相同质量的第一隔离体（4,4'）和第二隔离体（5,5'）固定在管（1）或测量管（1'，10,10'，10'）的外侧， '）以预定距离L彼此限定形成管或管段（11; 11'; 11“）的测量长度。 这些质量基本上大于管或管段的质量。 如果存在两个测量管，则使用夹紧体（111,112; 111'，112'）。 安装在管或管部分中间的振动激励器（12）以频率f在500Hz和1000Hz之间的第三振动模式激励后者。 距离L由以下公式计算：其中管或管段的外径为ri，管或管段的直径为ri，E为管或管段材料的弹性模量， dM是管或管段材料的密度和管或管段壁的横截面面积，dF是流体的平均密度和横截面积的乘积 管或管部分的管腔。两个传感元件（13,14）在管或管部分固定在管或管段在第三振动模式下被激发的位置，管或管 由管道产生的干扰引起的管段分别具有第一和第二零点。

公开(公告)号：US5736653A

公开(公告)日：1998-04-07

申请号：US659859

申请日：1996-06-07

申请人： Wolfgang Drahm ,  Alfred Rieder

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01F1/84

CPC分类号： G01F1/8409 ,  G01F1/8413 ,  G01F1/8427 ,  G01F1/8431 ,  G01F1/8436 ,  G01F1/849

摘要： A Coriolis-type mass flow meter is disclosed which can be installed, e.g., via flanges, in a conduit of a given diameter so as to be axially aligned with said conduit, which is traversed by a fluid to be measured. To further improve and optimize its insensitivity to vibrations originating from the conduit, this Coriolis-type mass flow meter comprises: at least one measuring tube fixed to the flanges; a support tube having its ends fixed to the respective flanges; means for exciting the measuring tube into resonance vibrations; velocity sensors positioned along the measuring tube for sensing the vibrations of the measuring tube; acceleration sensors positioned on the support tube along a line of intersection with that plane in which Coriolis forces act; and means which process signals from the velocity sensors and signals from the acceleration sensors into a mass flow signal which is substantially free from interference.

摘要翻译： 公开了一种科里奥利型质量流量计，其可以例如通过法兰安装在给定直径的管道中，以便与被测量的流体穿过的导管轴向对准。 为了进一步改善和优化其对来自管道的振动的不敏感性，该科里奥利型质量流量计包括：固定到凸缘的至少一个测量管; 支撑管，其端部固定到相应的凸缘; 用于将测量管激发成共振振动的装置; 速度传感器沿测量管定位，用于感测测量管的振动; 加速度传感器沿着与科里奥利力作用的那个平面的交叉线定位在支撑管上; 以及将来自速度传感器的信号和来自加速度传感器的信号处理成基本上没有干扰的质量流量信号的装置。

公开(公告)号：US08887555B2

公开(公告)日：2014-11-18

申请号：US13116157

申请日：2011-05-26

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01N11/10 ,  G01N11/16 ,  G01F1/84 ,  G01N9/00

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.

摘要翻译： 粘度计提供粘度值（X＆eegr），其表示在与其连接的管道中流动的流体的粘度。 它包括具有至少一个用于传导流体的流管的振动换能器，其与管道连通。 由激励组件驱动，流管被振动，使得在流体中产生摩擦力。 粘度计还包括将励磁电流（即xc）馈送到励磁组件中的仪表电子装置。 通过仪表电子设备，形成第一内部中间值（X1），其对应于激励电流（iexc），因此表示作用在流体中的摩擦力。 根据本发明，在仪表电子设备中产生表示流体中不均匀性的第二内部中间值（X2），其然后使用两个中间值（X1，X2）确定粘度值（X＆eegr）。 第一内部中间值（X1）优选地通过用于激励电流（iexc）的幅度控制信号（yAM）归一化，该振幅控制信号对应于流管的振动。 因此，由粘度计提供的粘度值（X＆eegr）是非常精确和鲁棒的，特别是独立于流动管的安装位置。

公开(公告)号：US08826744B2

公开(公告)日：2014-09-09

申请号：US13433880

申请日：2012-03-29

申请人： Alfred Rieder ,  Wolfgang Drahm ,  Michael Wiesmann ,  Christof Huber ,  Martin Anklin

发明人： Alfred Rieder ,  Wolfgang Drahm ,  Michael Wiesmann ,  Christof Huber ,  Martin Anklin

IPC分类号： G01F1/84

CPC分类号： G01F1/8413 ,  G01F1/8404 ,  G01F1/8477

摘要： A measuring transducer comprises a housing, and a tube arrangement formed by means of at least two tubes extending within the housing. At least one tube is embodied as a measuring tube serving for conveying flowing medium and another tube is mechanically connected with the tube by means of a coupling element to form an inlet-side coupling zone and by means of a coupling element. The coupling element is arranged equally far removed from the housing end. One coupling element has, about an imaginary longitudinal axis of the tube arrangement imaginarily connecting a center of mass of the coupling element and a center of mass of the other coupling element, with an angle of intersection equal to that with the other coupling element, a bending stiffness, which deviates from a bending stiffness of the other coupling element about said imaginary longitudinal axis of the tube arrangement.

摘要翻译： 测量换能器包括壳体和通过在壳体内延伸的至少两个管形成的管装置。 至少一个管被实施为用于输送流动介质的测量管，并且另一个管通过联接元件与管机械连接以形成入口侧连接区域并且借助于联接元件。 联接元件被布置成与壳体端部同样远的位置。 一个耦合元件具有大致绕管结构的假想纵向轴线，其假想连接耦合元件的质心和另一个耦合元件的质心，其交叉角等于与另一耦合元件的重合角， 弯曲刚度偏离另一耦合元件围绕管装置的假想纵向轴线的弯曲刚度。

公开(公告)号：US20140144246A1

公开(公告)日：2014-05-29

申请号：US13698704

申请日：2011-04-14

申请人： Wolfgang Drahm ,  Alfred Rieder ,  Stefan Heidenblut ,  Frank Schmalzried ,  Thomas Sulzer

发明人： Wolfgang Drahm ,  Alfred Rieder ,  Stefan Heidenblut ,  Frank Schmalzried ,  Thomas Sulzer

IPC分类号： G01F1/58

CPC分类号： G01F1/58 ,  G01F1/002 ,  G01F1/586

摘要： A method and flow measuring device for ascertaining flow of a medium through a measuring tube based on at least a first measurement signal, which depends at least on the flow velocity of the medium in the measuring tube, wherein the first measurement signal is registered, wherein an additional, second measurement signal is registered, which depends on the flow cross sectional area of the medium in the measuring tube and is independent of the flow velocity of the medium in the measuring tube, and wherein flow is ascertained as a function of the first and second measurement signals.

摘要翻译： 一种方法和流量测量装置，用于基于至少依赖于测量管中的介质的流速的至少第一测量信号确定介质通过测量管的流量，其中登记第一测量信号，其中 登记附加的第二测量信号，其取决于测量管中的介质的流动横截面积，并且与测量管中的介质的流速无关，并且其中流动被确定为第一 和第二测量信号。

公开(公告)号：US07966863B2

公开(公告)日：2011-06-28

申请号：US12382489

申请日：2009-03-17

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01N11/10

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：US07665369B2

公开(公告)日：2010-02-23

申请号：US12314972

申请日：2008-12-19

申请人： Enio Bitto ,  Alfred Rieder ,  Christian Schütze ,  Michael Fuchs ,  Wolfgang Drahm ,  Michael Wiesmann

发明人： Enio Bitto ,  Alfred Rieder ,  Christian Schütze ,  Michael Fuchs ,  Wolfgang Drahm ,  Michael Wiesmann

IPC分类号： G01F1/84

CPC分类号： G01F1/849 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427 ,  G01N11/167 ,  G01N2009/006

摘要： The measuring transducer includes: a measuring tube vibrating, at least at times, and serving for conveying medium to be measured; a counteroscillator, which is affixed to the measuring tube on an inlet-side, to form a first coupling zone, and to the measuring tube on an outlet-side, to form a second coupling zone; at least one oscillation exciter for driving at least the measuring tube; as well as at least one oscillation sensor for registering oscillations at least of the measuring tube. During operation, the measuring tube executes, at least at times and/or at least in part, bending oscillations about an imaginary bending oscillation axis, which imaginarily connects the two coupling zones with one another. The oscillation sensor includes a coil, especially a coil affixed to the counteroscillator, as well as, magnetically coupled with the coil, a permanent magnet, which is placed within a magnet cup composed at least partially of magnetically conductive material and which is held to a cup base, especially a cup base secured to the measuring tube. Additionally, it is provided in the measuring transducer of the invention that a cup wall of the magnet cup, especially an essentially circular-cylindrical and/or tubular, cup wall, especially a cup wall extending essentially in the direction of the counteroscillator, has at least one slit, especially a slit extending at least sectionally in the direction of oscillations of the measuring tube relative to the counteroscillator.

摘要翻译： 测量传感器包括：测量管，至少有时并且用于输送要测量的介质; 固定在入口侧的测量管上，形成第一联接区域，并在出口侧与测量管相连接，形成第二连接区域; 至少一个用于至少驱动所述测量管的振荡激励器; 以及用于至少记录测量管的振荡的至少一个振荡传感器。 在操作期间，测量管至少在有时和/或至少部分地执行围绕虚拟弯曲振荡轴线的弯曲振荡，该虚拟弯曲振荡轴线将两个耦合区域彼此连接起来。 振荡传感器包括一个线圈，特别是一个固定在反摆振器上的线圈，以及与该线圈磁耦合的一个永久磁铁，该永磁体被放置在至少部分由导电材料组成的磁体杯中， 杯基座，特别是固定在测量管上的杯座。 此外，在本发明的测量传感器中，提供了一种电磁杯的杯壁，特别是基本上圆柱形和/或管状的杯壁，特别是基本上沿反摆振器方向延伸的杯壁，其具有 至少一个狭缝，特别是在测量管相对于反摆振器的振荡方向上至少部分地延伸的狭缝。