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公开(公告)号：US5497665A
公开(公告)日：1996-03-12
申请号：US233687
申请日：1994-04-26
Applicant: Donald R. Cage , Michael N. Schott
Inventor： Donald R. Cage , Michael N. Schott
CPC classification number: G01F1/8409 , G01F1/8413 , G01F1/8418 , G01F1/8431 , G01F1/8436 , G01F1/8459 , G01F1/8463 , G01F1/849 , G01F15/024 , G01L9/0008 , G01N11/16 , G01N9/002 , G01N2009/006
Abstract: Several Radial Mode Coriolis mass flow rate meter geometries and electronic circuits are described that may be made to be sensitive to pressure or density changes. In one embodiment, the meter comprises: (1) a flow conduit for containing a fluid having a physical characteristic, the fluid adapted to flow in the conduit at an unknown rate, (2) a drive circuit for creating a vibration in the flow conduit, the fluid altering the vibration as a function of the physical characteristic and the flow rate, (3) a detector circuit for measuring the altered vibration at a working point and producing a signal representing an uncompensated mass flow rate of the fluid and (4) a computation circuit for calculating a compensated mass flow rate of the fluid proportional to the uncompensated rate by 1/.OMEGA.1.sup.n, where .OMEGA.1 is a driven natural frequency of the flow conduit and n is a number chosen as a function of the working point, the compensated rate thereby reduced of effects of the physical characteristic. A unique mathematical algorithm is also described that allows for a much wider variety of design geometry while maintaining insensitivity to pressure or density without having to measure or compensate for either. In addition, a method is described that allows for the accurate measurement and compensation of both pressure and density.
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公开(公告)号：US20110163754A1
公开(公告)日：2011-07-07
申请号：US13051430
申请日：2011-03-18
Applicant: Larry K. Carmichael , Jesse A. Weber , John H. Henry , Michael N. Schott , Gerardo A. Brucker , Kenneth D. Van Antwerp, JR.
Inventor： Larry K. Carmichael , Jesse A. Weber , John H. Henry , Michael N. Schott , Gerardo A. Brucker , Kenneth D. Van Antwerp, JR.
IPC: G01L21/30
Abstract: An ionization gauge that measures pressure has an electron source that emits electrons, and an anode that defines an ionization space. The gauge also includes a collector electrode to collect ions formed by an impact between the electrons and a gas and to measure pressure based on the collected ions. The electron source is dynamically varied in emission current between a plurality of emission levels dependent on pressure and a second parameter other than pressure. The ionization gauge may also vary various operating parameters of the gauge components according to parameters stored in a non-volatile memory and selected by a user.
Abstract translation: 测量压力的电离计具有发射电子的电子源和限定电离空间的阳极。 该量规还包括收集电极以收集由电子和气体之间的冲击形成的离子，并且基于收集的离子来测量压力。 电子源在取决于压力的多个排放水平和除压力之外的第二参数的发射电流之间动态变化。 电离计还可以根据存储在非易失性存储器中并由用户选择的参数来改变量规组件的各种操作参数。
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3.发明授权Signal processing apparati and methods for attenuating shifts in zero intercept attributable to a changing boundary condition in a Coriolis mass flow meter 失效用于衰减归因于科里奥利质量流量计中边界条件变化的零截距偏移的信号处理装置和方法
公开(公告)号：US5827979A
公开(公告)日：1998-10-27
申请号：US636034
申请日：1996-04-22
Applicant: Michael N. Schott , Donald R. Cage , Larry K. Carmichael , David T. Hahn
Inventor： Michael N. Schott , Donald R. Cage , Larry K. Carmichael , David T. Hahn
IPC: G01F1/84
CPC classification number: G01F15/024 , G01F1/8409 , G01F1/8418 , G01F1/8431 , G01F1/8436 , G01F1/849
Abstract: In the field of Coriolis mass flow meters, determination of the true zero of the meter has always been problematic due to zero drift effects with changing boundary conditions and fluid parameters. Disclosed are apparatus and methods for determining the true mass flow related component of the signal of the meter separately from errors caused by changing boundary conditions and fluid parameters. Accordingly, an apparatus for measuring a mass flow rate of a fluid flowing relative to a flow conduit includes: (1) a force driver for vibrating the flow conduit, (2) a sensor for measuring a resulting motion of the flow conduit and producing a sensed motion signal indicative thereof, the resulting motion containing a Coriolis mode component and a boundary condition mode component, (3) signal processing circuitry, coupled to the sensor to receive the sensed motion signal therefrom, for determining a magnitude of the Coriolis mode component of the resulting motion and (4) output circuitry for producing an output signal proportional to the mass flow rate, the output signal substantially free of influence from the boundary condition mode component of the sensed motion signal.
Abstract translation: 在科里奥利质量流量计领域，随着边界条件和流体参数的变化，零点漂移的影响，仪表的真实零点一直是有问题的。 公开了用于确定仪表的信号的真实质量流量相关分量的装置和方法，其与由边界条件和流体参数的变化引起的误差分开。 因此，用于测量相对于流动管道流动的流体的质量流量的装置包括：（1）用于使流动管道振动的力驱动器，（2）用于测量流动导管的所得运动并产生 感测到的指示其的运动信号，所得运动包含科里奥利模式分量和边界条件模式分量，（3）信号处理电路，耦合到传感器以从其接收感测的运动信号，以确定科里奥利模式分量的幅度 所产生的运动和（4）输出电路用于产生与质量流量成比例的输出信号，输出信号基本上不受所感测运动信号的边界条件模式分量的影响。
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公开(公告)号：US08586918B2
公开(公告)日：2013-11-19
申请号：US13289142
申请日：2011-11-04
Applicant: Gerardo A. Brucker , Kenneth D. Van Antwerp , G. Jeffery Rathbone , Scott C. Heinbuch , Michael N. Schott , Barbara Jane Hinch , Alexei V. Ermakov
Inventor： Gerardo A. Brucker , Kenneth D. Van Antwerp , G. Jeffery Rathbone , Scott C. Heinbuch , Michael N. Schott , Barbara Jane Hinch , Alexei V. Ermakov
IPC: H01J49/00
CPC classification number: H01J49/4245 , H01J49/0063 , H01J49/429
Abstract: An ion trap includes an electrode structure, including a first and a second opposed mirror electrodes and a central lens therebetween, that produces an electrostatic potential in which ions are confined to trajectories at natural oscillation frequencies, the confining potential being anharmonic. The ion trap also includes an AC excitation source having an excitation frequency f that excites confined ions at a frequency of about twice the natural oscillation frequency of the ions, the AC excitation frequency source preferably being connected to the central lens. In one embodiment, the ion trap includes a scan control that mass selectively reduces a frequency difference between the AC excitation frequency and about twice the natural oscillation frequency of the ions.
Abstract translation: 离子阱包括电极结构，其包括第一和第二相对的镜电极和它们之间的中心透镜，其产生静电电位，其中离子以固有的振荡频率被限制在轨迹上，限制电位是非调谐的。 离子阱还包括具有激发频率f的AC激发源，激发频率f以大约是离子的固有振荡频率的两倍的频率激发约束离子，AC激发频率源优选地连接到中心透镜。 在一个实施例中，离子阱包括扫描控制，质量选择性地降低AC激发频率与离子的固有振荡频率的大约两倍之间的频率差。
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Patent Agency Ranking5.发明授权Signal processing and field proving methods and circuits for a coriolis mass flow meter 失效科里奥利质量流量计的信号处理和现场验证方法和电路
公开(公告)号：US5907104A
公开(公告)日：1999-05-25
申请号：US569967
申请日：1995-12-08
Applicant: Donald R. Cage , David T. Hahn , Michael N. Schott , Larry K. Carmichael
Inventor： Donald R. Cage , David T. Hahn , Michael N. Schott , Larry K. Carmichael
CPC classification number: G01F25/0007 , G01F1/8431 , G01F1/8436 , G01F1/849
Abstract: A signal processing apparatus and method for measuring a mass flow rate of a fluid flowing in conjunction with a surface of a Coriolis mass flow meter and a field-provable Coriolis mass flow meter. The apparatus includes: (1) a driver for creating a prescribed vibration in the surface, (2) a motion sensor for measuring a motion of the surface, (3) response characteristic determination circuitry, coupled to the motion sensor, for determining a response characteristic of the surface and (4) flow rate calculation circuitry, coupled to the response characteristic determination circuitry, for calculating a measured mass flow rate of the fluid as a function of the motion and the response characteristic. The field-provable meter employs the response characteristic to monitor or compare meter performance without requiring a separate proving device.
Abstract translation: 一种用于测量与科里奥利质量流量计和可现场科里奥利质量流量计的表面一起流动的流体的质量流量的信号处理装置和方法。 该设备包括：（1）用于在表面中产生规定振动的驱动器，（2）用于测量表面运动的运动传感器，（3）耦合到运动传感器的响应特性确定电路，用于确定响应 表面的特征和（4）流量计算电路，耦合到响应特性确定电路，用于根据运动和响应特性计算流体的测量质量流量。 现场验证仪采用响应特性来监测或比较仪表性能，而不需要单独的验证设备。
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公开(公告)号：US08947098B2
公开(公告)日：2015-02-03
申请号：US13051430
申请日：2011-03-18
Applicant: Larry K. Carmichael , Jesse A. Weber , John H. Henry , Michael N. Schott , Gerardo A. Brucker , Kenneth D. Van Antwerp, Jr.
Inventor： Larry K. Carmichael , Jesse A. Weber , John H. Henry , Michael N. Schott , Gerardo A. Brucker , Kenneth D. Van Antwerp, Jr.
Abstract: An ionization gauge that measures pressure has an electron source that emits electrons, and an anode that defines an ionization space. The gauge also includes a collector electrode to collect ions formed by an impact between the electrons and a gas and to measure pressure based on the collected ions. The electron source is dynamically varied in emission current between a plurality of emission levels dependent on pressure and a second parameter other than pressure. The ionization gauge may also vary various operating parameters of the gauge components according to parameters stored in a non-volatile memory and selected by a user.
Abstract translation: 测量压力的电离计具有发射电子的电子源和限定电离空间的阳极。 该量规还包括收集电极以收集由电子和气体之间的冲击形成的离子，并且基于收集的离子来测量压力。 电子源在取决于压力的多个排放水平和除压力之外的第二参数的发射电流之间动态变化。 电离计还可以根据存储在非易失性存储器中并由用户选择的参数来改变量规组件的各种操作参数。
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7.发明授权Coriolis mass flow rate meter having adjustable pressure and density sensitivity 失效科里奥利质量流量计具有可调的压力和密度灵敏度
公开(公告)号：US5473949A
公开(公告)日：1995-12-12
申请号：US402189
申请日：1995-03-10
Applicant: Donald R. Cage , Michael N. Schott
Inventor： Donald R. Cage , Michael N. Schott
CPC classification number: G01F1/8409 , G01F1/8413 , G01F1/8418 , G01F1/8431 , G01F1/8436 , G01F1/8459 , G01F1/8463 , G01F1/849 , G01F15/024 , G01L9/0008 , G01N11/16 , G01N9/002 , G01N2009/006
Abstract: Several Radial Mode Coriolis mass flow rate meter geometries and electronic circuits are described that may be made to be sensitive to pressure or density changes. In one embodiment, the meter comprises: (1) a flow conduit for containing a fluid having a physical characteristic, the fluid adapted to flow in the conduit at an unknown rate, (2) a drive circuit for creating a vibration in the flow conduit, the fluid altering the vibration as a function of the physical characteristic and the flow rate, (3) a detector circuit for measuring the altered vibration at a working point and producing a signal representing an uncompensated mass flow rate of the fluid and (4) a computation circuit for calculating a compensated mass flow rate of the fluid proportional to the uncompensated rate by 1/.OMEGA.1.sup.n, where .OMEGA.1 is a driven natural frequency of the flow conduit and n is a number chosen as a function of the working point, the compensated rate thereby reduced of effects of the physical characteristic. A unique mathematical algorithm is also described that allows for a much wider variety of design geometry while maintaining insensitivity to pressure or density without having to measure or compensate for either. In addition, a method is described that allows for the accurate measurement and compensation of both pressure and density.
Abstract translation: 描述了可以对压力或密度变化敏感的几种径向模式科里奥利质量流量计几何形状和电子电路。 在一个实施例中，仪表包括：（1）用于容纳具有物理特性的流体的流动管道，所述流体适于以未知的速率流入导管中;（2）用于在流动管道中产生振动的驱动电路 ，所述流体根据物理特性和流量改变振动，（3）检测器电路，用于测量工作点处的改变的振动并产生表示流体的未补偿质量流量的信号;（4） 用于计算与未补偿速率成比例的流体的补偿质量流量为1 / OMEGA 1n的计算电路，其中OMEGA 1是流动管道的驱动固有频率，n是根据工作点选择的数量， 补偿率由此降低了物理特性的影响。 还描述了一种独特的数学算法，其允许更宽泛的设计几何形状，同时保持对压力或密度的不敏感性，而不必对其进行测量或补偿。 此外，描述了允许精确测量和补偿压力和密度的方法。
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公开(公告)号：US20120112056A1
公开(公告)日：2012-05-10
申请号：US13289142
申请日：2011-11-04
Applicant: Gerardo A. Brucker , Kenneth D. Van Antwerp , G. Jeffrey Rathbone , Scott C. Heinbuch , Michael N. Schott
Inventor： Gerardo A. Brucker , Kenneth D. Van Antwerp , G. Jeffrey Rathbone , Scott C. Heinbuch , Michael N. Schott
CPC classification number: H01J49/4245 , H01J49/0063 , H01J49/429
Abstract: An ion trap includes an electrode structure, including a first and a second opposed mirror electrodes and a central lens therebetween, that produces an electrostatic potential in which ions are confined to trajectories at natural oscillation frequencies, the confining potential being anharmonic. The ion trap also includes an AC excitation source having an excitation frequency f that excites confined ions at a frequency of about twice the natural oscillation frequency of the ions, the AC excitation frequency source preferably being connected to the central lens. In one embodiment, the ion trap includes a scan control that mass selectively reduces a frequency difference between the AC excitation frequency and about twice the natural oscillation frequency of the ions.
Abstract translation: 离子阱包括电极结构，其包括第一和第二相对的镜电极和它们之间的中心透镜，其产生静电电位，其中离子以固有的振荡频率被限制在轨迹上，限制电位是非调谐的。 离子阱还包括具有激发频率f的AC激发源，激发频率f以大约是离子的固有振荡频率的两倍的频率激发约束离子，AC激发频率源优选地连接到中心透镜。 在一个实施例中，离子阱包括扫描控制，质量选择性地降低AC激发频率与离子的固有振荡频率的大约两倍之间的频率差。
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9.发明授权System and method for employing an imaginary difference signal component to compensate for boundary condition effects on a Coriolis mass flow meter 有权用于采用虚拟差分信号分量补偿科里奥利质量流量计的边界条件影响的系统和方法公开(公告)号：US06227059B1
公开(公告)日：2001-05-08
申请号：US09229452
申请日：1999-01-12
Applicant: Michael N. Schott , Donald R. Cage , Larry K. Carmichael
Inventor： Michael N. Schott , Donald R. Cage , Larry K. Carmichael
IPC: G01F184
CPC classification number: G01F1/849 , G01F1/8427 , G01F1/8431 , G01F1/8436 , G01F15/024
Abstract: A system for, and method of, compensating for a boundary condition effect on a Coriolis meter having (at least) two sensors for generating preliminary signals that are a function of fluid flow through the meter and a Coriolis meter employing the system or the method. In one embodiment, the system includes: (1) signal combination circuitry, couplable to the (at least) two sensors, that develops an imaginary difference signal based on the preliminary signals and (2) boundary effect compensation circuitry, coupled to the signal combination circuitry, that calculates a boundary effect compensation factor based on the imaginary difference signal.
Abstract translation: 用于补偿具有（至少）两个传感器的科里奥利仪表的边界条件效应的系统和方法，用于产生作为通过仪表的流体流动的函数的初步信号和采用该系统或方法的科里奥利仪表。 在一个实施例中，系统包括：（1）可耦合至（至少）两个传感器的信号组合电路，其基于初步信号产生虚拟差分信号，和（2）耦合到信号组合的边界效应补偿电路 电路，其基于虚差信号计算边界效应补偿因子。
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