公开(公告)号：US20190170554A1

公开(公告)日：2019-06-06

申请号：US15832519

申请日：2017-12-05

申请人： General Electric Company

发明人： Philipp Lang ,  Jens Rütten ,  Charles Erklin Seeley

IPC分类号： G01F1/84 ,  G01F15/02

CPC分类号： G01F1/8418 ,  G01F1/8413 ,  G01F1/8422 ,  G01F1/8477 ,  G01F1/849 ,  G01F15/022 ,  G01F15/024

摘要： Provided is a Coriolis flow sensor assembly that includes a flow tube configured to provide a flow path through the flow tube. Further, the Coriolis flow sensor assembly includes a mechanical drive assembly configured to drive an oscillation of the flow tube while fluid is flowing via an oscillation surface. The Coriolis flow sensor assembly includes an interface fixedly coupled to the oscillation surface of the mechanical drive assembly and configured to receive the flow tube.

公开(公告)号：US20180306622A1

公开(公告)日：2018-10-25

申请号：US15959422

申请日：2018-04-23

申请人： Schneider Electric Systems USA, Inc.

发明人： Manus P. Henry ,  Mihaela D. Duta ,  Michael S. Tombs

IPC分类号： G01F1/84 ,  G01N9/00 ,  G01F15/02

CPC分类号： G01F1/849 ,  G01F1/8436 ,  G01F1/8486 ,  G01F15/024 ,  G01N9/002

摘要： Motion is induced in a conduit such that the conduit vibrates in a major mode of vibration having a major amplitude and a minor mode of vibration having a minor amplitude. The major amplitude is larger than the minor amplitude, the major mode of vibration has a first frequency of vibration and the minor mode of vibration has a second frequency of vibration, and the minor mode of vibration interferes with the major mode of vibration to cause a beat signal having a frequency related to the first frequency of vibration and the second frequency of vibration. The frequency of the beat signal is determined, and the second frequency of vibration is determined based on the determined frequency of the beat signal.

公开(公告)号：US20180149571A1

公开(公告)日：2018-05-31

申请号：US15881046

申请日：2018-01-26

申请人： Endress + Hauser Flowtec AG

发明人： Wolfgang DRAHM ,  Alfred RIEDER

IPC分类号： 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 (X0) 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 (X0) 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 (X0) 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：US20160216189A1

公开(公告)日：2016-07-28

申请号：US15088402

申请日：2016-04-01

申请人： Endress + Hauser Flowtec AG

发明人： Wolfgang DRAHM ,  Alfred RIEDER

IPC分类号： 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（Xη），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（Xη）。 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。 结果，由粘度计提供的粘度值（Xη）高度精确和鲁棒，特别是独立于流动管的安装位置。

公开(公告)号：US09322691B2

公开(公告)日：2016-04-26

申请号：US14522364

申请日：2014-10-23

申请人： Endress + Hauser Flowtec AG

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01F1/84 ,  G01N11/16 ,  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：US20150268082A1

公开(公告)日：2015-09-24

申请号：US14435184

申请日：2013-09-23

申请人： ENDRESS+HAUSER FLOWTEC AG

发明人： Michael Kirst ,  Alfred Rieder

IPC分类号： G01F1/84

CPC分类号： G01F1/849 ,  G01F1/8436 ,  G01F1/8495 ,  G01F15/02 ,  G01F25/0007

摘要： The measuring system comprises: a vibration element for guiding flowing medium and having a lumen; and a vibration element, which is adapted to be contacted, at least at times, by a part of the medium. Additionally, the measuring system includes at least two oscillation exciters for exciting resonant oscillations of the respective vibration elements, two mutually spaced oscillation sensors for registering vibrations of the vibration element, each of which generates an oscillatory signal dependent on vibrations of the vibration element, as well as at least one oscillation sensor for registering vibrations of the vibration element and generating, dependent on vibrations of the vibration element, an oscillatory signal, which has a signal frequency corresponding to a resonant frequency, of the vibration element. Moreover, the measuring system also comprises a measuring and operating electronics, which based on a phase difference, existing between the oscillation signals and based on the signal frequency of the oscillation signal generates a measured value representing the volume flow rate, respectively the volume flow.

摘要翻译： 测量系统包括：用于引导流动介质并具有内腔的振动元件; 以及振动元件，其适于至少有时由介质的一部分接触。 此外，测量系统包括用于激励各个振动元件的共振振荡的至少两个振荡激励器，两个相互间隔的振荡传感器，用于配准振动元件的振动，每个振动元件产生取决于振动元件的振动的振荡信号，如 以及用于记录振动元件的振动的至少一个振荡传感器，并且根据振动元件的振动，产生振动元件具有对应于谐振频率的信号频率的振荡信号。 此外，测量系统还包括测量和操作电子设备，其基于振荡信号之间存在的相位差，并且基于振荡信号的信号频率，分别产生表示体积流量的测量值和体积流量。

公开(公告)号：US20140318212A1

公开(公告)日：2014-10-30

申请号：US14324799

申请日：2014-07-07

申请人： Invensys Systems, Inc.

发明人： Robert E. Dutton

IPC分类号： G01F25/00

CPC分类号： G01F25/0007 ,  G01F1/8436 ,  G01F1/8486 ,  G01F1/849

摘要： Descriptions are provided for implementing flowmeter zero checking techniques. In operating a flowmeter, it may be the case that, even if previously calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flow. Therefore, zero checking features are provided that allow for fast and accurate determinations of the zero-flow values, for use in adjusting later measurements. The zero-checking features include a button attached to an exterior of a flowmeter, so that it is easily accessible to an operator of the flowmeter. The button, in conjunction with an internal zero checking system, allows for a display of a zero value in response to a request from the operator of the flowmeter.

摘要翻译： 提供了实现流量计零点检查技术的说明。 在操作流量计时，可能的情况是，即使以前校准，流量计将产生错误的测量，例如，将在零流量期间表示非零流量。 因此，提供零检查功能，允许快速准确地确定零流量值，以用于调整以后的测量。 零点检查功能包括附接到流量计外部的按钮，使得流量计的操作者容易接近。 该按钮与内部零点检查系统结合，允许响应于来自流量计的操作者的请求显示零值。

公开(公告)号：US08706430B2

公开(公告)日：2014-04-22

申请号：US13903611

申请日：2013-05-28

申请人： Invensys Systems, Inc.

发明人： Michael S. Tombs

IPC分类号： G06F19/00

CPC分类号： G01F1/84 ,  G01F1/8436 ,  G01F1/8468 ,  G01F1/8486 ,  G01F1/849 ,  G01F15/024 ,  G01F25/0007 ,  G06F19/00

摘要： Motion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. At least one of the first frequency of vibration or the second frequency of vibration is determined. A phase difference between the motion of the conduit at a first point of the conduit and the motion of the conduit at a second point of the conduit is determined. A quantity based on the phase difference and the determined frequency is determined. The quantity includes a ratio between the first frequency during a zero-flow condition and the second frequency during the zero-flow condition. A property of the fluid is determined based on the quantity.

摘要翻译： 在包含流体的导管中诱发运动。 引起运动使得导管以第一振动模式和第二振动模式振荡。 第一振动模式具有相应的第一振动频率，第二振动模式具有相应的第二振动频率。 确定振动的第一频率或第二振动频率中的至少一个。 在管道的第一点处的导管的运动与管道的第二点处的导管的运动之间的相位差被确定。 确定基于相位差和确定的频率的量。 该数量包括在零流动状态期间的第一频率与零流动状态期间的第二频率之间的比率。 基于数量确定流体的性质。

公开(公告)号：US20130199306A1

公开(公告)日：2013-08-08

申请号：US13701945

申请日：2011-11-18

申请人： Kourosh Kolahi ,  Ralf Storm

发明人： Kourosh Kolahi ,  Ralf Storm

IPC分类号： G01F1/84

CPC分类号： G01F1/8413 ,  G01F1/74 ,  G01F1/8422 ,  G01F1/8436 ,  G01F1/8468 ,  G01F1/849 ,  G01N9/002

摘要： A method for operating a Coriolis mass flowmeter in which a simple and reliable detection of a multi-phase flow is implemented by determining at least one first measured value for at least one state variable that is dependent on the amplitude in a multi-phase medium, exciting the measuring tube with the oscillation generator to oscillate at a predetermined oscillation frequency and a first amplitude, and to oscillate with the excitation frequency and a second amplitude, detecting the resulting oscillation of the measuring tube and determining at least a second measured value for the state variable that is dependent on the amplitude in a multi-phase medium from the determined resulting oscillation, and using the deviation of at least one of the first measured value from at least a corresponding second value as an indicator for the presence of a multi-phase flow.

摘要翻译： 一种用于操作科里奥利质量流量计的方法，其中通过确定取决于多相介质中的振幅的至少一个状态变量的至少一个第一测量值来实现多相流的简单和可靠的检测， 激励具有振荡发生器的测量管以预定的振荡频率和第一幅度振荡，并且以激励频率和第二幅度振荡，检测测量管的所得振荡并且确定至少第二测量值 状态变量，其取决于来自所确定的所得振荡的多相介质中的幅度，并且使用至少一个第一测量值与至少相应的第二值的偏差作为多维介质的存在的指标， 相流。

公开(公告)号：US08473224B2

公开(公告)日：2013-06-25

申请号：US13420054

申请日：2012-03-14

申请人： Michael S. Tombs

发明人： Michael S. Tombs

IPC分类号： G06F1/00

CPC分类号： G01F1/84 ,  G01F1/8436 ,  G01F1/8468 ,  G01F1/8486 ,  G01F1/849 ,  G01F15/024 ,  G01F25/0007 ,  G06F19/00

摘要： Motion is induced in a conduit that contains a fluid. The motion is induced such that the conduit oscillates in a first mode of vibration and a second mode of vibration. The first mode of vibration has a corresponding first frequency of vibration and the second mode of vibration has a corresponding second frequency of vibration. At least one of the first frequency of vibration or the second frequency of vibration is determined. A phase difference between the motion of the conduit at a first point of the conduit and the motion of the conduit at a second point of the conduit is determined. A quantity based on the phase difference and the determined frequency is determined. The quantity includes a ratio between the first frequency during a zero-flow condition and the second frequency during the zero-flow condition. A property of the fluid is determined based on the quantity.

摘要翻译： 在包含流体的导管中诱发运动。 引起运动使得导管以第一振动模式和第二振动模式振荡。 第一振动模式具有相应的第一振动频率，第二振动模式具有相应的第二振动频率。 确定振动的第一频率或第二振动频率中的至少一个。 在管道的第一点处的导管的运动与管道的第二点处的导管的运动之间的相位差被确定。 确定基于相位差和确定的频率的量。 该数量包括在零流动状态期间的第一频率与零流动状态期间的第二频率之间的比率。 基于数量确定流体的性质。