公开(公告)号：US20140083514A1

公开(公告)日：2014-03-27

申请号：US13626432

申请日：2012-09-25

Applicant: MKS INSTRUMENTS, INC.

Inventor： Junhua Ding

IPC: F17D3/01

CPC classification number: G01F1/363 ,  G01F1/86 ,  G01F1/88 ,  G01F15/022 ,  G01F15/024 ,  G01F15/043 ,  G01F15/046 ,  G01F25/0007 ,  G05D7/0647 ,  Y10T137/0379 ,  Y10T137/7761

Abstract: A mass flow control system can be self verified for its accuracy when controlling a flow to a process. The system comprises: a control valve for controlling the flow of fluid through the system as a function of a control signal; a controller for generating the control signal as a function of measured flow of fluid through the system and a targeted flow set point; a pressure sensor for measuring the controlling fluid pressure for use in measuring and verifying the flow rate; and a source of fluid for providing a known volume of fluid for use in verifying the system accuracy anytime between steps of the flow control process.

Abstract translation: 当控制进入过程的流量时，质量流量控制系统可以自我验证其精度。 该系统包括：控制阀，用于根据控制信号控制通过系统的流体的流动; 用于产生控制信号的控制器，其作为通过系统的流体的测量流量和目标流量设定点的函数; 用于测量用于测量和验证流量的控制流体压力的压力传感器; 以及用于提供已知体积的流体的流体源，用于在流量控制过程的步骤之间随时验证系统精度。

公开(公告)号：US08370098B2

公开(公告)日：2013-02-05

申请号：US12216102

申请日：2008-06-30

Applicant: Rainer Höcker

Inventor： Rainer Höcker

IPC: G01F1/12

CPC classification number: G01F1/36 ,  G01F1/74 ,  G01F1/88 ,  G01F15/022 ,  G01F15/061 ,  G01N7/00

Abstract: A measuring system for precise measuring a density of a medium flowing in a pipe line. The measuring system comprises a temperature sensor and a pressure sensor. Both sensors communicate with a measuring electronics of the system. The measuring electronics are operable to provide, based on temperature measurement and pressure measurement, a provisional density measured value, especially according to one of the industrial standards AGAR, AGN NX-19, SGERG-88 IAWPS-IF97, ISO 12213:2006. Further, the measuring electronics provides, based on the provisional density measured value and a density correction value, which is dependant on a flow velocity of the medium, and temperature measurement, a density measured value, which differs from the provisional density measured value, and which represents the density to be measured more accurately.

Abstract translation: 用于精确测量在管道中流动的介质的密度的测量系统。 测量系统包括温度传感器和压力传感器。 两个传感器与系统的测量电子设备进行通信。 测量电子器件可操作以基于温度测量和压力测量提供临时密度测量值，特别是根据工业标准AGAR，AGN NX-19，SGERG-88 IAWPS-IF97，ISO 12213：2006中的一个。 此外，测量电子设备基于临时密度测量值和依赖于介质的流速和温度测量的密度校正值，提供与临时密度测量值不同的密度测量值，以及 这表示要更精确地测量的密度。

公开(公告)号：US20120123705A1

公开(公告)日：2012-05-17

申请号：US13292168

申请日：2011-11-09

Applicant: Wolfgang Drahm ,  Hao Zhu ,  Alfred Rieder ,  Michael Wiesmann ,  Patrick Oudoire

Inventor： Wolfgang Drahm ,  Hao Zhu ,  Alfred Rieder ,  Michael Wiesmann ,  Patrick Oudoire

IPC: G01F1/20 ,  G06F19/00

CPC classification number: G01F1/8413 ,  G01F1/8436 ,  G01F1/8472 ,  G01F15/022

Abstract: A measuring system comprises: a measuring transducer; transmitter electronics; at least one measuring tube; and at least one oscillation exciter. The transmitter electronics delivers a driver signal for the at least one oscillation exciter, and for feeding electrical, excitation power into the at least one oscillation exciter. The driver signal, has a sinusoidal signal component which corresponds to an instantaneous eigenfrequency, and in which the at least one measuring tube can execute, or executes, eigenoscillations about a resting position. The eigenoscillations have an oscillation node and in the region of the wanted, oscillatory length exactly one oscillatory antinode. The driver signal has, a sinusoidal signal component with a signal frequency, which deviates from each instantaneous eigenfrequency of each natural mode of oscillation of the at least one measuring tube, in each case, by more than 1 Hz and/or by more than 1% of said eigenfrequency.

Abstract translation: 测量系统包括：测量传感器; 变送器电子; 至少一个测量管; 和至少一个振荡激励器。 所述发射机电子装置为所述至少一个振荡激励器提供驱动器信号，并且向所述至少一个振荡激励器馈送电，激励功率。 驱动器信号具有对应于瞬时本征频率的正弦信号分量，并且其中至少一个测量管可以执行或执行关于静止位置的本征振荡。 特征振荡具有振荡节点，并且在所需的振荡长度的区域中恰好是一个振荡波腹。 驱动器信号具有信号频率的正弦信号分量，其偏离每个情况下每个自然振荡模式的每个瞬时本征频率超过1Hz和/或大于1 ％的本征频率。

公开(公告)号：US20110016988A1

公开(公告)日：2011-01-27

申请号：US12721200

申请日：2010-03-10

Applicant: Michael S. Tombs ,  Manus P. Henry ,  Mihaela D. Duta ,  Robbie Lansangan ,  Robert E. Dutton ,  Wade M. Mattar

Inventor： Michael S. Tombs ,  Manus P. Henry ,  Mihaela D. Duta ,  Robbie Lansangan ,  Robert E. Dutton ,  Wade M. Mattar

IPC: G01F1/84

CPC classification number: G01F1/8486 ,  G01F1/74 ,  G01F1/8431 ,  G01F1/8436 ,  G01F1/849 ,  G01F15/022 ,  G01F15/024 ,  G01F25/0007

Abstract: A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to determine an individual flow rate of each phase within a multi-phase flow through the flowtube.

Abstract translation: 公开了一种流量计。 该流量计包括可振动的流管，以及连接到流管的驱动器，其可操作以向流量管施加运动。 传感器连接到流量计，并且可操作以感测流量计的运动并产生传感器信号。 连接控制器以接收传感器信号。 控制器可操作以确定通过流管的多相流中的各相的各个流量。

公开(公告)号：US20100268485A1

公开(公告)日：2010-10-21

申请号：US12831062

申请日：2010-07-06

Applicant: Paul Prehn Bey ,  Richard Gehman

Inventor： Paul Prehn Bey ,  Richard Gehman

IPC: G01F1/78

CPC classification number: G01F25/0007 ,  G01F15/022 ,  G01F15/043

Abstract: A multi-gas/gas-mixture or liquid flow sensor apparatus utilizing a specific media calibration capability. The flow sensor can be coupled with an Application Specific Integrated Circuit (ASIC) that incorporates a signal conditioner and a memory module. The signal conditioner provides a high order calibration and signal processing of flow signals from the sensor to a processed signal output representative of the flow. The processed signal output can be stored in the memory module. A correction factor can be calculated and stored in the memory module in response to the stored values of the processed signal output, which tends to linearize the relationship between the flow rate and the processed signal output of a measuring system. The correction factor and/or the processed signal output provided by the signal conditioner can be utilized by the measuring system.

公开(公告)号：US07669463B2

公开(公告)日：2010-03-02

申请号：US11832115

申请日：2007-08-01

Applicant: Ing Ernst Scheid

Inventor： Ing Ernst Scheid

IPC: G01M15/05

CPC classification number: G01F15/022

Abstract: A method of determining the fuel consumption of an internal combustion engine 12, more particularly when operated on a test rig, wherein fuel is supplied in a circuit to the internal combustion engine and discharged therefrom and wherein a quantity of fuel is supplied to the circuit 11 via a branch line 22 from a fuel tank 23 and measured in the branch line, wherein temperature-related changes in the volume of the fuel are determined in the circuit 11 and wherein the consumed quantity {dot over (m)}S determined in the branch line 22 is corrected by a corrective quantity {dot over (m)}K corresponding to the temperature-related changes in volume in the circuit.

Abstract translation: 一种确定内燃机12的燃料消耗的方法，特别是当在试验台上操作时，其中燃料在电路中供应到内燃机并从其中排出，并且其中一定数量的燃料供给到电路11 通过来自燃料箱23的分支管线22并在分支管线中测量，其中在电路11中确定燃料的体积中的温度相关的变化，并且其中确定的消耗量{dot over（m）} S 分支线路22通过对应于电路中的体积温度相关变化的校正量{dot over（m）} K来校正。

公开(公告)号：US20100004889A1

公开(公告)日：2010-01-07

申请号：US12166047

申请日：2008-07-01

Applicant: Paul Prehn Bey ,  Richard Gehman

Inventor： Paul Prehn Bey ,  Richard Gehman

IPC: G01F25/00 ,  G01F1/00

CPC classification number: G01F25/0007 ,  G01F15/022 ,  G01F15/043

Abstract: A multi-gas/gas-mixture or liquid flow sensor apparatus utilizing a specific media calibration capability. The flow sensor can be coupled with an Application Specific Integrated Circuit (ASIC) that incorporates a signal conditioner and a memory module. The signal conditioner provides a high order calibration and signal processing of flow signals from the sensor to a processed signal output representative of the flow. The processed signal output can be stored in the memory module. A correction factor can be calculated and stored in the memory module in response to the stored values of the processed signal output, which tends to linearize the relationship between the flow rate and the processed signal output of a measuring system. The correction factor and/or the processed signal output provided by the signal conditioner can be utilized by the measuring system.

Abstract translation: 利用特定介质校准能力的多气体/气体混合物或液体流量传感器装置。 流量传感器可以与包含信号调节器和存储器模块的专用集成电路（ASIC）耦合。 信号调节器提供从传感器到表示流程的经处理的信号输出的流量信号的高阶校准和信号处理。 经处理的信号输出可以存储在存储器模块中。 响应于处理的信号输出的存储值，可以计算修正因子并将其存储在存储器模块中，这倾向于使流量和测量系统的处理的信号输出之间的关系线性化。 由信号调节器提供的校正因子和/或处理的信号输出可以由测量系统使用。

公开(公告)号：US20090099794A1

公开(公告)日：2009-04-16

申请号：US12248169

申请日：2008-10-09

Applicant: Michael P. Boulanger ,  Bruce K. Grewell

Inventor： Michael P. Boulanger ,  Bruce K. Grewell

IPC: G01F1/34 ,  G01F1/44 ,  G01F1/42

CPC classification number: G01F1/88 ,  G01F15/022

Abstract: A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow.

Abstract translation: 一种用于测量液体流速的简单，被动和坚固的装置。 可变区域阻塞阀，差压传感器和密度计组合在单个壳体中，以提供高精度和精确的质量流量测量。

公开(公告)号：US20090038406A1

公开(公告)日：2009-02-12

申请号：US12216103

申请日：2008-06-30

Applicant: Rainer Hocker

Inventor： Rainer Hocker

IPC: G01F15/02

CPC classification number: G01F1/36 ,  G01F1/74 ,  G01F1/88 ,  G01F15/022 ,  G01F15/061 ,  G01N7/00

Abstract: A measuring system for measuring a density of a medium flowing in a process line along a flow axis of the measuring system in the case of a medium which is variable as regards a thermodynamic state, especially a medium which is, at least in part, compressible. The measuring system includes at least one temperature sensor placed at a temperature measuring point, reacting primarily to a local temperature, θ, of medium flowing past, and delivering at least one temperature measurement signal influenced by the local temperature of the medium to be measured; at least one pressure sensor placed at a pressure measuring point, reacting primarily to a local, especially a static, pressure, p, of medium flowing past, and delivering at least one pressure measurement signal influenced by the local pressure, p, in the medium to be measured; as well as a measuring electronics communicating, in each case, at least at times, with the temperature sensor and the pressure sensor. The measuring electronics produces, with application both of the temperature measurement signal as well as also at least the pressure measurement signal, at least at times, at least one density measured-value, especially a digital, density measured-value, representing, instantaneously, a local density, ρ, which the flowing medium has at a virtual density measuring point, especially a locationally fixed, virtual density measuring point, predeterminably spaced from the pressure measuring point and/or from the temperature measuring point, along the flow axis.

Abstract translation: 一种测量系统，用于测量在关于热力学状态可变的介质的情况下沿着测量系统的流动轴线在流程线中流动的介质的密度，特别是至少部分地可压缩的介质 。 测量系统包括放置在温度测量点的至少一个温度传感器，主要与流过的介质的局部温度θ进行反应，并传送受受测介质的局部温度影响的至少一个温度测量信号; 放置在压力测量点处的至少一个压力传感器，主要与局部的，特别是静态的压力p对流过的介质反应，并且传递受介质中的局部压力p影响的至少一个压力测量信号 待测 以及在每种情况下至少有时与温度传感器和压力传感器通信的测量电子装置。 至少有时至少有一个密度测量值，尤其是数字密度测量值，测量电子产生温度测量信号以及至少压力测量信号，表示瞬时， 流动介质具有位于虚拟密度测量点，特别是位置固定的虚拟密度测量点的局部密度rho，其可以沿着流动轴线与压力测量点和/或温度测量点间隔开。

公开(公告)号：US20080253934A1

公开(公告)日：2008-10-16

申请号：US12131952

申请日：2008-06-03

Applicant: Nicholas M. DiTrolio ,  Eric L. Canfield

Inventor： Nicholas M. DiTrolio ,  Eric L. Canfield

IPC: B01L3/02 ,  G01N1/14

CPC classification number: G01F25/0092 ,  B01L3/021 ,  B01L3/0213 ,  B01L3/0227 ,  B01L3/0234 ,  B01L2200/146 ,  B01L2200/148 ,  B01L2300/027 ,  B01L2400/0487 ,  G01F3/00 ,  G01F13/006 ,  G01F15/005 ,  G01F15/022 ,  G01F15/068 ,  G01F23/02 ,  Y10T436/2575

Abstract: A rugged, all-electronic fluid dispensing system for use with pipettes or in other contexts indirectly measures fluid flow by using a non-linear system model to correlate vacuum existing at the top of a column of suspended fluid. Non-contact operation is provided to eliminate the need for contact-type closed-loop fluid flow sensing and associated potential cross-contamination risks. In one particular exemplary non-limiting illustrative implementation, an electronic controller within a gun-shaped, cordless self-contained pipetter housing dynamically calculates valve opening time based on a non-linear equation. Calibration is used to derive equation constants, and column vacuum pressure before the valve is opened is used as the independent variable to derive a valve opening time that will result in accurate dispensing of a desired programmed fluid quantity. Repetitive automatic dispensing with accuracies greater than 1% are possible within the context of a relatively inexpensive portable pipette or device without the need for mechanically-complex positive displacement arrangements.

Abstract translation: 用于移液管或其它环境的坚固的全电子流体分配系统通过使用非线性系统模型来间接测量流体流动，以使存在于悬浮流体柱顶部的真空相关联。 提供非接触操作，以消除对接触式闭环流体流量检测和相关的潜在交叉污染风险的需求。 在一个具体的示例性非限制性说明性实施方案中，枪形的无绳自包含移液器壳体内的电子控制器基于非线性方程动态地计算开阀时间。 使用校准来导出方程常数，阀门打开前的列真空压力被用作独立变量，以导出阀打开时间，从而精确分配所需的编程流体量。 在相对便宜的便携式移液器或装置的情况下，重复自动分配精度大于1％是可能的，而不需要机械复杂的正位移装置。