公开(公告)号：US20040255648A1

公开(公告)日：2004-12-23

申请号：US10710106

申请日：2004-06-18

申请人： INTEGRATED SENSING SYSTEMS, INC.

发明人： Douglas Ray Sparks

IPC分类号： G01N011/16

CPC分类号： G01F1/8404 ,  G01F1/8409 ,  G01F1/8445 ,  G01F1/8472 ,  G01N11/16 ,  G01N33/28 ,  G01N33/2888 ,  G01N2009/006

摘要： A method and device for assessing the viscosity of a fluid. The method and device utilize a tube with a vibrating freestanding portion into which the fluid is introduced, and relies on sensing the influence that the fluid has on the vibrational movement of the tube to assess the viscosity of the fluid. For this purpose, the freestanding portion is preferably driven at or near a resonant frequency, movement of the freestanding portion is sensed, and the viscosity of a fluid within the tube is assessed by ascertaining the damping effect the fluid has on movement of the freestanding portion at or near the resonant frequency.

摘要翻译： 用于评估流体粘度的方法和装置。 该方法和装置利用具有引入流体的振动独立部分的管，并且依赖于感测流体对管的振动运动的影响以评估流体的粘度。 为此，独立部分优选地被驱动在共振频率处或附近，感测独立部分的运动，并且通过确定流体对独立部分的运动的阻尼效应来评估管内的流体的粘度 在或接近谐振频率。

公开(公告)号：US20030233868A1

公开(公告)日：2003-12-25

申请号：US10431573

申请日：2003-05-08

发明人： Alfred Rieder ,  Wolfgang Drahm

IPC分类号： G01H003/00 ,  G01N011/16

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：US20010039829A1

公开(公告)日：2001-11-15

申请号：US09844013

申请日：2001-04-27

发明人： Alfred Wenger ,  Michael Fuchs ,  Christian Matt ,  Wolfgang Drahm

IPC分类号： G01N011/10 ,  G01N011/16

CPC分类号： G01F1/8409 ,  G01F1/8413 ,  G01F1/8418 ,  G01F1/8422 ,  G01F1/8436 ,  G01F1/849 ,  G01N9/002 ,  G01N11/16

摘要： A vibration meter and a method of measuring a viscosity of a fluid flowing through a pipe are disclosed. The vibration meter comprises meter electronics and a transducer assembly with an electromechanical excitation arrangement and with a flow tube which oscillates in operation. A sensor arrangement produces sensor signals representative of inlet-side and outlet-side deflections of the flow tube. An evaluation circuit derives from said sensor signals and from an excitation current generated by an excitation circuit for the excitation arrangement a viscosity value representative of the viscosity of the fluid.

摘要翻译： 公开了一种振动计和测量流过管道的流体的粘度的方法。 振动计包括仪表电子装置和具有机电激励装置的传感器组件，以及在操作中振荡的流动管。 传感器装置产生代表流管的入口侧和出口侧偏转的传感器信号。 评估电路来自所述传感器信号，并且由激励电路产生的激励电流产生代表流体粘度的粘度值。

公开(公告)号：US20030233878A1

公开(公告)日：2003-12-25

申请号：US10431640

申请日：2003-05-08

发明人： Wolfgang Drahm ,  Alfred Rieder

IPC分类号： G01H003/00 ,  G01N011/16

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 vibrated by an excitation assembly. Inlet-side and outlet-side vibrations of the flow tube 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. An internal portion of the transducer, formed at least by the flow tube, an antivibrator, the sensor arrangement, and the excitation assembly and mounted at least on the inlet and outlet tube sections, has a centroid which is located inside the flow tube. The transducer is suitable for use in viscometers or Coriolis mass flowmeter-viscometers. In spite of using only a single straight flow tube, it is dynamically well balanced in operation, and the development of bending moments by the torsionally vibrating flow tube is largely prevented. This also effectively prevents the transducer case or the connected pipe from being excited into sympathetic vibration. Measurement signals representative of mass flow rate are readily distinguishable from measurement signals representative of viscosity, particularly if the sensors used for the viscosity measurement are also used for the mass flow measurement.

摘要翻译： 为了传导流体，传感器具有在操作中由激励组件振动的流动管。 通过传感器装置来检测流管的入口侧和出口侧振动。 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。 至少由流管形成的换能器的内部部分，防振器，传感器装置和激励组件至少安装在入口管部分和出口管部分上，具有位于流管内部的质心。 传感器适用于粘度计或科里奥利质量流量计粘度计。 尽管仅使用单个直流管，但在操作中动态平衡良好，并且大大地防止了由扭转振动流管引起的弯矩的发展。 这也有效地防止了换能器壳体或连接的管道被激发成交感振动。 表示质量流量的测量信号与代表粘度的测量信号容易区分，特别是如果用于粘度测量的传感器也用于质量流量测量。

公开(公告)号：US20030217589A1

公开(公告)日：2003-11-27

申请号：US10332830

申请日：2003-06-16

发明人： Bernhard Jakoby ,  Matthias Buskies

IPC分类号： G01N011/16

CPC分类号： G01N11/16

摘要： A sensor for measuring the viscosity of a fluid, which has an oscillator. The oscillator is dipped into the fluid. The surface of the oscillator is provided with a dirt-repellent coating.

摘要翻译： 用于测量具有振荡器的流体粘度的传感器。 振荡器浸入流体中。 振荡器的表面设有防污涂层。

公开(公告)号：US20020170341A1

公开(公告)日：2002-11-21

申请号：US10098650

申请日：2002-03-15

发明人： Bernhard Jakoby ,  Kurt Weiblen ,  Volker Brielmann

IPC分类号： G01N011/10 ,  G01N011/16

CPC分类号： G01N11/16

摘要： A system for measuring the properties of liquids, in particular, for measuring the viscosity of a liquid, includes a piezoelectric sensor device, which is completely immersed in liquid and has electric contact points for an electric control which are resistant with regard to the liquid. The piezoelectric sensor device includes electric lead conductors, which are resistant with regard to the liquid and are connectable to an electronic control/analyzer unit outside of liquid and to contact points within the sensor device by a suitable conductive adhesive containing metal particles.

摘要翻译： 用于测量液体特性的系统，特别是用于测量液体的粘度的系统包括一个压电传感器装置，它完全浸没在液体中，并具有电液控制的电接触点，这些接触点对液体是有抵抗力的。 压电传感器装置包括电引线导体，它们相对于液体具有阻力，并且可连接到液体外部的电子控制/分析器单元，并且通过含有金属颗粒的合适的导电粘合剂与传感器装置内的接触点相连。