公开(公告)号：US20120222479A1

公开(公告)日：2012-09-06

申请号：US13227831

申请日：2011-09-08

申请人： Hao Zhu ,  Wolfgang Drahm ,  Alfred Rieder

发明人： Hao Zhu ,  Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01F1/68

CPC分类号： G01F1/8436 ,  G01F1/8477

摘要： A method for detecting plugging of a measuring tube. Heat is supplied to a medium conveyed in a first measuring tube by means of at least one heating element, or heat is removed from the medium conveyed in a first measuring tube by means of at least one cooling element. At least one temperature sensor, which is thermally coupled to the medium conveyed in the first measuring tube, temperature is registered. Additionally, a first comparison variable, which is characteristic for heat transport by the medium in the first measuring tube, is determined based on the supplying of heat or removing of heat, as well as on the temperature registering, and this comparison variable is compared with a reference variable. Plugging of at least one measuring tube of the measuring transducer is detected if the first comparison variable deviates from the reference variable by more than a limit value.

摘要翻译： 一种检测测量管堵塞的方法。 通过至少一个加热元件将热量供应到在第一测量管中传送的介质，或者借助于至少一个冷却元件将热量从在第一测量管中输送的介质中移除。 至少一个温度传感器被热耦合到在第一测量管中传送的介质温度。 此外，第一比较变量是第一测量管中介质传热的特征，是基于供热或除热以及温度记录来确定的，并将该比较变量与 参考变量。 如果第一比较变量偏离参考变量超过限制值，则检测测量传感器的至少一个测量管的插入。

公开(公告)号：US20120060626A1

公开(公告)日：2012-03-15

申请号：US13227653

申请日：2011-09-08

申请人： Hao Zhu ,  Wolfgang Drahm ,  Alfred Rieder

发明人： Hao Zhu ,  Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01F1/84

CPC分类号： G01F1/84 ,  G01F1/66 ,  G01F1/8436 ,  G01F1/8472 ,  G01F1/8477 ,  G01F7/00 ,  G01F25/0007

摘要： A method for detecting complete or partial plugging of a measuring tube of a Coriolis flow measuring device, which is insertable into a pipeline, and which has a measuring transducer of the vibration type having at least two measuring tubes connected for parallel flow. The method includes, in such case, the steps of measuring a subset flow occurring in a subset of the measuring tubes, and comparing a subset flow value obtained from this measurement with a reference value to be expected for this subset. The reference value is, in such case, determined from a total mass flow determined in the context of a Coriolis mass flow measuring. Additionally, the method includes the step of detecting plugging of at least one measuring tube of the measuring transducer, if the subset flow value deviates from the reference value by more than a limit value.

摘要翻译： 一种用于检测科里奥利流量测量装置的测量管的完全或部分堵塞的方法，该测量管可插入到管道中，并且具有振动类型的测量换能器，其具有连接用于并联流动的至少两个测量管。 在这种情况下，该方法包括以下步骤：测量在测量管的子集中发生的子集流，以及将从该测量获得的子集流值与该子集预期的参考值进行比较。 在这种情况下，参考值是根据在科里奥利质量流量测量的上下文中确定的总质量流量确定的。 此外，如果子集流量值偏离参考值超过限制值，该方法包括检测测量换能器的至少一个测量管的堵塞的步骤。

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：US07490521B2

公开(公告)日：2009-02-17

申请号：US11599480

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.

摘要翻译： 测量传感器包括：测量管至少在操作期间振动并用于传送介质，其中测量管通过入口端处的入口管件和出口端的出口管件与管道连通 ; 固定在入口端的测量管上以形成第一联接区并在出口端固定到测量管以形成第二联接区的反倾析器; 以及第一悬臂，用于在所述入口管件中产生弯曲力矩，并且在所述第一联接区域的区域中基本上刚性地与所述入口管件和所述测量管耦合并且具有位于所述入口管件区域中的质心， 以及用于在出口管件中产生弯曲力矩的第二悬臂，并且在第二联接区域的区域中基本上与出口管件和测量管刚性地联接并且具有位于出口管的区域中的质心 片。 本发明的测量传感器特别适合于具有大于50mm的大公称直径的测量管。

公开(公告)号：US07412903B2

公开(公告)日：2008-08-19

申请号：US11435855

申请日：2006-05-18

申请人： Alfred Rieder ,  Wolfgang Drahm ,  Hao Zhu

发明人： Alfred Rieder ,  Wolfgang Drahm ,  Hao Zhu

IPC分类号： G01F1/84

CPC分类号： G01F1/849 ,  G01F1/8409 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8427 ,  G01F1/8431 ,  G01F1/8436

摘要： An inline measuring device comprises a vibratory-type transducer and a measuring device electronics electrically coupled with the vibratory-type transducer. The vibratory-type transducer includes at least one measuring tube being inserted into the course of a pipeline and serving for conducting a mixture to be measured. An exciter arrangement acting on the measuring tube for causing the at least one measuring tube to vibrate and a sensor arrangement sensing vibrations of the at least one measuring tube and delivering at least one oscillation measurement signal representing oscillations of the measuring tube. The measuring device electronics delivers an excitation current driving the exciter arrangement. Further, the inline measuring device electronics is adapted to produce a measured value representing the physical, measured quantity of the mixture to be measured. Therefor, the measuring device electronics estimates from the excitation current and from said at least one oscillation measurement signal a Coriolis coupling coefficient. This Coriolis coupling coefficient corresponds with an instantaneous coupling between a first natural eigenmode of the measuring tube currently driven by the exciter arrangement and a second natural eigenmode of said measurement tube. In this second eigenmode the measurement tube has an eigenform corresponding with a mode of vibration caused by Coriolis forces induced in the flowing mixture. Due to a variation of a concentration of at least one of a component of the mixture the Coriolis coupling coefficient varies in time.

摘要翻译： 在线测量装置包括振动型换能器和与振动型换能器电耦合的测量装置电子装置。 振动型换能器包括至少一个测量管，其被插入到管道的过程中，并用于进行待测量的混合物。 用于使至少一个测量管振动的测量管上的激励器装置和感测所述至少一个测量管的振动并传送表示测量管的振荡的至少一个振荡测量信号的传感器装置。 测量装置电子装置提供驱动激励器装置的励磁电流。 此外，在线测量装置电子装置适于产生表示要测量的混合物的物理测量量的测量值。 因此，测量装置电子装置从激励电流和所述至少一个振荡测量信号估计科里奥利耦合系数。 该科里奥利耦合系数对应于当前由激励器装置驱动的测量管的第一自然本征模式与所述测量管的第二自然本征模式之间的瞬时耦合。 在该第二本征模式中，测量管具有对应于在流动混合物中引起的科里奥利力引起的振动模式的本征形状。 由于混合物的组分中至少一种的浓度的变化，科里奥利偶联系数随时间变化。

公开(公告)号：US20080127719A1

公开(公告)日：2008-06-05

申请号：US10173748

申请日：2002-06-19

申请人： Wolfgang Drahm ,  Alfred Rieder ,  Christian Matt

发明人： Wolfgang Drahm ,  Alfred Rieder ,  Christian Matt

IPC分类号： G01N11/16

CPC分类号： G01F1/849 ,  G01F1/8409 ,  G01F1/8413 ,  G01F1/8431 ,  G01F1/8436 ,  G01N11/162 ,  G08C19/02

摘要： The viscometer comprises a vibratory transducer with at least one flow tube for conducting a fluid to be measured and for producing friction forces acting in the fluid. To vibrate the at least one flow tube, an excitation assembly is provided, which in operation is traversed by an excitation current. To generate the excitation current and a viscosity value representing the viscosity of the fluid, the viscometer includes meter electronics which are connected to, and supplied with electric power from, a two-wire process control loop. The meter electronics feed a viscosity signal corresponding to the measured viscosity value into the two-wire process control loop. The viscometer is suitable for measuring a fluid flowing in a pipe, particularly in potentially explosive atmospheres.

摘要翻译： 粘度计包括具有至少一个流动管的振动换能器，用于传导要测量的流体并产生作用在流体中的摩擦力。 为了使至少一个流管振动，提供激励组件，其在运行中被激励电流穿过。 为了产生激励电流和表示流体粘度的粘度值，粘度计包括仪表电子装置，其连接到二线制过程控制回路并由二线过程控制回路供给电力。 仪表电子装置将对应于测量的粘度值的粘度信号输入到两线过程控制回路中。 粘度计适用于测量在管道中流动的流体，特别是在潜在的爆炸性环境中。

公开(公告)号：US07360453B2

公开(公告)日：2008-04-22

申请号：US11645562

申请日：2006-12-27

申请人： Alfred Rieder ,  Wolfgang Drahm

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01F1/84

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

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).

摘要翻译： 测量装置包括用于测量多相混合物的振动型换能器和与振动型换能器电耦合的测量装置电子装置。 换能器包括插入管道过程中的至少一个测量管。 励磁装置作用在测量管上，以使至少一个测量管振动。 传感器装置感测至少一个测量管的振动并传送表示测量管的振荡的至少一个振荡测量信号。 此外，测量装置电子装置传递驱动激励器装置的励磁电流。 测量装置适于补偿基于移动共振器模型（MRM）由于存在多相混合而引起的测量误差。

公开(公告)号：US20070186686A1

公开(公告)日：2007-08-16

申请号：US11645562

申请日：2006-12-27

申请人： Wolfgang Drahm ,  Alfred Rieder

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01F1/84

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

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).

摘要翻译： 测量装置包括用于测量多相混合物的振动型换能器和与振动型换能器电耦合的测量装置电子装置。 换能器包括插入管道过程中的至少一个测量管。 励磁装置作用在测量管上，以使至少一个测量管振动。 传感器装置感测至少一个测量管的振动并传送表示测量管的振荡的至少一个振荡测量信号。 此外，测量装置电子装置传递驱动激励器装置的励磁电流。 测量装置适于补偿基于移动共振器模型（MRM）由于存在多相混合而引起的测量误差。

公开(公告)号：US20070180929A1

公开(公告)日：2007-08-09

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： G01F1/60

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).

摘要翻译： 测量装置包括用于测量多相混合物的振动型换能器和与振动型换能器电耦合的测量装置电子装置。 换能器包括插入管道过程中的至少一个测量管。 励磁装置作用在测量管上，以使至少一个测量管振动。 传感器装置感测至少一个测量管的振动并传送表示测量管的振荡的至少一个振荡测量信号。 此外，测量装置电子装置传递驱动激励器装置的励磁电流。 测量装置适于补偿基于移动共振器模型（MRM）由于存在多相混合而引起的测量误差。

公开(公告)号：US20060225517A1

公开(公告)日：2006-10-12

申请号：US11448897

申请日：2006-06-08

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 ,  G01F1/8413 ,  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.