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1. 发明授权

US07634939B2 Viscometer 有权
标题翻译：粘度计
公开(公告)号：US07634939B2
公开(公告)日：2009-12-22
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： G01N11/10
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。

2. 发明申请

US20080127719A1 Viscometer 有权
标题翻译：粘度计
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。

3. 发明授权

US06662120B2 Excitation circuits for coriolis mass flowmeters 有权
公开(公告)号：US06662120B2
公开(公告)日：2003-12-09
申请号：US10173763
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： G06F1700
CPC分类号： G01F1/8409 , G01F1/8413 , G01F1/8431 , G01F1/8477
摘要： Such an excitation circuit is intended for use in a Coriolis mass flowmeter which is connected to, is powered exclusively from, and outputs a measurement signal exclusively via, a two-wire process control loop. The Coriolis mass flowmeter has a vibrating flow tube and an excitation assembly for vibrating the flow tube at a frequency equal or adjacent to the instantaneous mechanical resonance frequency of the flow tube. It further comprises transducer assemblies which are positioned at a given distance from each other along the flow tube and provide respective transducer signals. The excitation circuit may comprise a peak detector to which one of the transducer signals is applied as an input signal, a comparsion stage which determines a deviation of the output signal of the peak detector from an adjustable reference signal that specifies an amplitude of the vibration of the flow tube, a multiplier for the input signal to the peak detector and the output signal from the comparsion stage, and an output stage having an input connected to an output of the multiplier and supplying the excitation assembly. Instead of the multiplier, a pulse duration modulator or a DC/DC converter and a comparator may be provided.

4. 发明申请

US20050247116A1 Vibration meter and method of measuring a viscosity of a fluid 有权
标题翻译：振动计和测量流体粘度的方法
公开(公告)号：US20050247116A1
公开(公告)日：2005-11-10
申请号：US10656340
申请日：2003-09-05
申请人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
发明人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
IPC分类号： G01F1/84 , G01N9/00 , G01N11/10
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。

5. 发明授权

US06651513B2 Vibration meter and method of measuring a viscosity of a fluid 有权
公开(公告)号：US06651513B2
公开(公告)日：2003-11-25
申请号：US09844013
申请日：2001-04-27
申请人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
发明人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
IPC分类号： G01N1110
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.

6. 发明授权

US07520162B2 Vibration meter and method of measuring a viscosity of a fluid 有权
标题翻译：振动计和测量流体粘度的方法
公开(公告)号：US07520162B2
公开(公告)日：2009-04-21
申请号：US11368448
申请日：2006-03-07
申请人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
发明人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
IPC分类号： G01N11/16 , G01F1/86
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。

7. 发明授权

US09109936B2 Measuring device electronics for a measuring device as well as measuring device formed therewith 有权
标题翻译：用于测量装置的测量装置电子装置以及由其形成的测量装置
公开(公告)号：US09109936B2
公开(公告)日：2015-08-18
申请号：US13484444
申请日：2012-05-31
申请人： Wolfgang Drahm , Gernot Engstler , Hans Pohl , Christian Matt , Robert Lalla , Matthias Brudermann
发明人： Wolfgang Drahm , Gernot Engstler , Hans Pohl , Christian Matt , Robert Lalla , Matthias Brudermann
IPC分类号： G06F1/26 , G01F1/84 , G06F11/16
CPC分类号： G01F1/8431 , G01F1/8436 , G01F1/8477 , G06F11/1604 , G06F11/1608
摘要： A measuring device electronics comprises a processor and two clock signal generators. One clock signal generator serves for producing a working clock signal, and also for producing a reference clock signal which is dependant on the working clock signal. The other clock signal generator, serves for producing a second reference clock signal, which is independent of the working clock signal. Based on the two independent reference clock signals, a frequency difference, can, to the extent that such is present, be ascertained during operation of the measuring device electronics or of the measuring device formed therewith. The frequency difference, represents a difference between the instantaneous clocking frequency of the first reference clock signal and the instantaneous clocking frequency of the second reference clock signal, and, in this respect, represents a measure for a deviation of an instantaneous clocking frequency, from the nominally predetermined clocking frequency, of the working clock signal.
摘要翻译：测量装置电子器件包括处理器和两个时钟信号发生器。一个时钟信号发生器用于产生工作时钟信号，并且还用于产生取决于工作时钟信号的参考时钟信号。另一个时钟信号发生器用于产生独立于工作时钟信号的第二参考时钟信号。基于两个独立的参考时钟信号，可以在测量装置电子装置或由此形成的测量装置的操作期间确定频率差，在这样的程度上。频率差表示第一参考时钟信号的瞬时时钟频率和第二参考时钟信号的瞬时时钟频率之间的差，并且在这方面表示瞬时时钟频率与名义上预定的工作时钟信号的时钟频率。

8. 发明授权

US06401548B1 Coriolis mass flow/density sensor 有权
标题翻译：科里奥利质量流量/密度传感器
公开(公告)号：US06401548B1
公开(公告)日：2002-06-11
申请号：US09414268
申请日：1999-10-07
申请人： Wolfgang Drahm , Georg Szaloky , Alfred Wenger , Ennio Bitto , Ole Koudal , Christian Matt , Christian Schütze
发明人： Wolfgang Drahm , Georg Szaloky , Alfred Wenger , Ennio Bitto , Ole Koudal , Christian Matt , Christian Schütze
IPC分类号： G01F184
CPC分类号： G01F1/8409 , G01F1/8418 , G01F1/849 , G01N9/002 , G01N11/162
摘要： A Coriolis mass flow/density sensor which can be installed in a pipe and through which a fluid to be measured flows during operation is balanced over a wide density range so that accurate measurements are possible. The Coriolis mass flow/density sensor includes a measuring tube, an excitation arrangement for exciting the measuring tube to vibrate in a second fundamental flexural mode of vibration; and a counterbalance member attached to the measuring tube which counterbalances the vibration of the measuring tube. A cantilever can be attached to the measuring tube midway between the inlet end and the outlet end of the measuring tube. First and second sensors sense the measuring tube vibration on the inlet and outlet sides of the measuring tube, respectively.
摘要翻译：科里奥利质量流量/密度传感器可以安装在管道中，待测量的流体在运行期间流动，在宽的密度范围内平衡，从而可以进行精确的测量。科里奥利质量流量/密度传感器包括测量管，激励装置，用于激励测量管以第二基本弯曲振动模式振动; 以及附接到测量管的平衡构件，其抵消测量管的振动。悬臂可以在测量管的入口端和出口端之间的中间连接到测量管。第一和第二传感器分别感测测量管的入口侧和出口侧的测量管振动。

9. 发明授权

US07191667B2 Vibration meter and method of measuring a viscosity of a fluid 有权
标题翻译：振动计和测量流体粘度的方法
公开(公告)号：US07191667B2
公开(公告)日：2007-03-20
申请号：US10656340
申请日：2003-09-05
申请人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
发明人： Alfred Wenger , Michael Fuchs , Christian Matt , Wolfgang Drahm
IPC分类号： G01N11/10 , G01F1/84
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。

10. 发明授权

US6006609A Coriolis mass flow/density sensor with a single straight measuring tube 失效
标题翻译：科里奥利质量流量/密度传感器，带一根直的测量管
公开(公告)号：US6006609A
公开(公告)日：1999-12-28
申请号：US940644
申请日：1997-09-30
申请人： Wolfgang Drahm , Georg Szaloky , Alfred Wenger , Ennio Bitto , Ole Koudal , Christian Matt , Christian Schutze
发明人： Wolfgang Drahm , Georg Szaloky , Alfred Wenger , Ennio Bitto , Ole Koudal , Christian Matt , Christian Schutze
IPC分类号： G01F1/84 , G01N9/00 , G01N11/16
CPC分类号： G01F1/8409 , G01F1/8418 , G01F1/849 , G01N11/162 , G01N9/002
摘要： This mass flow/density sensor (10), which can be installed in a pipe and through which a fluid to be measured flows during operation, is to be balanced over a wide density range, so that accurate measurements are possible. A single straight measuring tube (13) having a longitudinal axis (131) extends between its inlet end (11) and the outlet end (12) and is fixed to a support, e.g., a cylindrical tube (14, 14'). The support has a longitudinal centroidal line (141) which is parallel to, but does not coincide with, the longitudinal axis (131) of the measuring tube. A cantilever (15) is fixed to the measuring tube (13) midway between the inlet and outlet ends (11, 12) and in operation causes the measuring tube to vibrate either in a first fundamental flexural mode or in a second fundamental flexural mode having a higher frequency than this first mode. An excitation arrangement (16) disposed midway between the end pieces excites the measuring tube (13) in the second mode. Sensors (17, 18) for the motions of the measuring tube on the inlet and outlet side are positioned between the middle of the tube and the inlet and outlet ends, respectively. The support may be provided with a counterbalance. Because of the torsional vibrations exerted by the cantilever on the measuring tube, the sensor is also well suited for measuring the viscosity of the fluid.
摘要翻译：这种质量流量/密度传感器（10）可以在宽的密度范围内平衡，可以安装在管道中，待测量的流体在运行过程中流动，从而可以进行精确的测量。具有纵向轴线（131）的单个直的测量管（13）在其入口端（11）和出口端（12）之间延伸并且被固定到诸如圆柱形管（14,14'）的支撑件上。支撑件具有与测量管的纵向轴线（131）平行但不一致的纵向重心线（141）。悬臂（15）在入口端和出口端（11,12）之间的中途固定到测量管（13），并且在操作中使测量管以第一基本弯曲模式或第二基本弯曲模式振动，比第一模式高的频率。设置在端片之间的中间的激励装置（16）在第二模式下激发测量管（13）。用于入口和出口侧的测量管的运动的传感器（17,18）分别位于管的中间和入口端和出口端之间。支撑件可以设置有平衡。由于悬臂在测量管上施加的扭转振动，传感器也非常适合测量流体的粘度。

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