公开(公告)号：EP0670476A1

公开(公告)日：1995-09-06

申请号：EP94102766.6

申请日：1994-02-24

申请人： Hewlett-Packard GmbH

发明人： Härtl, Hans-Georg

IPC分类号： G01F1/50 ,  G01F1/40 ,  G01N11/08

CPC分类号： G01F1/40 ,  G01F1/50 ,  G01F15/028 ,  G01N11/08

摘要： A method of determining the volumetric flow rate of a fluid, which determines the volumetric flow rate of said fluid essentially independently of the properties of the fluid, comprises the following steps:
   guiding the volumetric fluid flow to be measured through an essentially linear flow resistor (110);
generating an alternating fluid flow and superimposing the same on the volumetric fluid flow to be measured;
detecting the pressure drop across the flow resistor (110);
determining the steady component and the alternating component of the pressure drop detected;
determining a quantity (FV) representative of a fluid property of the fluid on the basis of the alternating component which has been determined;
and
calculating the volumetric flow rate on the basis of the steady component which has been determined as well as on the basis of the quantity (FV) representative of the fluid property.

摘要翻译： 确定流体的体积流量的方法，其基本上独立于流体的性质来确定所述流体的体积流速，包括以下步骤：通过基本上线性的流动阻力器引导待测量的体积流体流量（ 110）; 产生交替的流体流并将其叠加在待测量的体积流体流上; 检测流过电阻器（110）上的压降; 确定检测到的压降的稳定分量和交替分量; 基于已经确定的交替分量来确定代表流体的流体性质的量（FV）; 并且基于已经确定的稳定分量以及基于代表流体性质的量（FV）来计算体积流量。

公开(公告)号：EP0387282A4

公开(公告)日：1992-03-18

申请号：EP88910315

申请日：1988-10-25

申请人： ROBERTSHAW CONTROLS COMPANY

发明人： ASBILL, CLARENCE, M., III

IPC分类号： G01F1/36 ,  G01F1/38 ,  G01F1/50 ,  G01F1/48

CPC分类号： G01F1/50 ,  G01F1/366 ,  G01F1/386

公开(公告)号：EP0223300A3

公开(公告)日：1988-05-18

申请号：EP86201970

申请日：1986-11-11

申请人： EMS Holland BV

发明人： Kramer, A.

IPC分类号： G01F01/36 ,  G01F01/40 ,  G01F01/50 ,  G01F01/88

CPC分类号： G01F1/40 ,  G01F1/22 ,  G01F1/36 ,  G01F1/50

摘要： Method for the measurement of gas quantities which flow through an inlet opening (1) and device for the implementation of that method, whereby the gas is conducted through a block (2) of binary clack valves which are connected in parallel with maximum passage capacities which differ from one another, whereby the total drop of pressure across the block (2) is maintained at a pre-determined value by continuously detecting deviations from this value with a pressure detector (3) which controls a regulation system (4) with the signals which correspond therewith, which, depending on the signals which are received, opens and/or closes clacks in valves, after which the volume flow is read-off from the position of the valves. The device is preferably equipped with a precision adjustment for the drop of pressure, with correction sensors for temperature and pressure of the gas, and with a microprocessor which measures the gas quantities.

摘要翻译： 用于测量流过入口开口（1）的气体量的方法和用于实施该方法的装置，由此气体通过与最大通过容量并联连接的二进制气门阀块（2） 彼此不同，由此通过用控制具有信号的调节系统（4）的压力检测器（3）连续检测与该值的偏差，使块（2）上的压力的总下降保持在预定值 其根据所接收的信号来打开和/或关闭阀门中的气压，之后从阀的位置读出体积流量。 该装置优选地配备有用于降低压力的精确调节，具有用于气体的温度和压力的校正传感器以及用于测量气体量的微处理器。

公开(公告)号：EP0237390A1

公开(公告)日：1987-09-16

申请号：EP87400310.6

申请日：1987-02-12

申请人： L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE

发明人： Cuny, Francis ,  Vermeille, Hugues ,  Arnault, Jean

IPC分类号： G01F1/36 ,  G01F15/075 ,  G01F1/50

CPC分类号： G01F15/0755 ,  G01F1/363 ,  G01F1/50 ,  Y10T137/0357 ,  Y10T137/7759 ,  Y10T137/7761

摘要： Procédé de contrôle du débit d'un fluide à travers une vanne de section déterminée à clapet mobile, dans lequel on mesure les pressions du fluide en amont P amont et en aval P aval , de la vanne ainsi que la position d du clapet, puis l'on calcule le débit réel Q réel du fluide que l'on compare à une valeur de consigne Q₀, le signal de différence Q réel - Q₀ commandant le dépacement du clapet dans le sens voulu, caractérisé en ce que l'étape de calcul du débit réel s'effectue en mesurant le rapport R = P amont / P aval que l'on compare à une valeur R₀ prédéterminée et en calculant le produit Q sonique = k x P amont x d, de sorte que lorsque R > R₀, le produit Q sonique est directement comparé à une valeur de consigne Q₀, le signal de différence Q sonique - Q₀ commandant le déplacement du clapet dans le sens voulu tandis que lorsque R sonique , représente une valeur proportionnelle au débit Q subsonique du fluide en régime subsonique, cette valeur Q subsonique étant alors comparée à la valeur de consigne Q₀, le signal Q subsonique - Q₀ commandant le déplacement du clapet dans le sens voulu.

公开(公告)号：EP2593766B1

公开(公告)日：2018-11-14

申请号：EP11725286.6

申请日：2011-06-01

申请人： Rosemount Inc.

发明人： BRODEN, David, A. ,  HEDTKE, Robert, C. ,  KLOSINSKI, Andrew, J. ,  SITTLER, Fred, C.

IPC分类号： G01L13/00 ,  G01L15/00 ,  G01L27/00

CPC分类号： G01L13/026 ,  G01F1/383 ,  G01F1/50 ,  G01L9/125 ,  G01L15/00 ,  G01L27/002 ,  G01L27/007

摘要： A process variable transmitter for measuring a pressure of a process fluid includes a process coupling having a first port configured to couple to a first process pressure and a second port configured to couple to a second process pressure. A differential pressure sensor is coupled to the first and second ports and provides an output related to a differential pressure between the first pressure and the second pressure. First and second pressure sensors couple to the respective first and second ports and provide outputs related to the first and second pressures. Transmitter circuitry is configured to provide a transmitter output based upon the output from the differential pressure sensor and/or the first and/or second pressure sensors. Additional functionality is provided by the transmitter using the sensed first and/or second pressures.

公开(公告)号：EP3077776A4

公开(公告)日：2017-11-22

申请号：EP14867577

申请日：2014-12-01

申请人： OBENCHAIN VALERIE A

发明人： OBENCHAIN VALERIE A

IPC分类号： G01F23/18

CPC分类号： G01F23/18 ,  A61M16/0051 ,  A61M16/024 ,  A61M16/101 ,  A61M16/12 ,  A61M16/204 ,  A61M2016/0027 ,  A61M2016/0039 ,  A61M2016/1025 ,  A61M2202/0208 ,  A61M2202/0225 ,  A61M2202/025 ,  A61M2202/0266 ,  A61M2202/03 ,  A61M2205/3561 ,  A61M2205/3592 ,  A61M2205/50 ,  A61M2205/502 ,  A61M2205/581 ,  A61M2205/583 ,  B01D53/04 ,  B63C11/22 ,  F17D1/02 ,  G01F1/50 ,  G01F15/063 ,  G01F25/0053

摘要： A gas supply warning and communication system to generate and communicate alarm signals indicating gas pressure and gas flow malfunctions in a pressurized gas system, and to open a reserve gas reservoir in the event of certain types of malfunction. The system stores, transmits, and makes available for download, gas pressure, gas flow, and oxygen concentration data, and information regarding the status of the system. The system also accepts commands for modification of system function from users of remote devices. A software product encoding methods for operating the gas supply warning and communication system. A motorized reservoir changing device including a universal valve coupler, and methods for operating a reservoir valve with the reservoir changing device. A gripper tube for secure connection of gas lines linking components of a pressurized gas system.

公开(公告)号：EP3190393A1

公开(公告)日：2017-07-12

申请号：EP17157248.0

申请日：2004-08-16

申请人： Horiba, Ltd.

发明人： Nakamura, Hiroshi ,  Aoki, Shintaro ,  Asano, Ichiro ,  Senda, Jiro ,  Adachi, Masayuki

IPC分类号： G01F25/00 ,  G01F1/34 ,  G01F1/46 ,  G01F1/50

CPC分类号： G01F1/46 ,  G01F1/34 ,  G01F1/50

摘要： The invention presents a differential pressure type emission flow rate measuring method and apparatus and an emission measuring system using the same apparatus, capable of correcting measuring error occurring due to pulsation appropriately and enhancing the measuring precision of flow rate when measuring the flow rate of emission having pulsation.
The invention, in measuring the flow rate of an emission exhausted from an engine, determines an accurate flow rate in spite of pulsation by using a differential pressure type flowmeter as the flowmeter, resolving the detected differential pressure signal by frequency, and correcting by using a correction coefficient predetermined depending on each frequency obtained by frequency resolution.

摘要翻译： 本发明提供一种差压型排放流量测量方法和设备以及使用该设备的排放测量系统，其能够适当地校正由于脉动而产生的测量误差，并且在测量排放流量时提高流量的测量精度 脉动。 本发明在测量从发动机排出的排放物的流量时，通过使用差压型流量计作为流量计，尽管存在脉动而确定了精确的流量，通过频率解析检测到的差压信号，并且通过使用 校正系数取决于通过频率分辨率获得的每个频率。

公开(公告)号：EP3052905A1

公开(公告)日：2016-08-10

申请号：EP14850355.0

申请日：2014-10-01

申请人： FMC Kongsberg Subsea AS

发明人： WEE, Arnstein ,  GUNDERSEN, Kenneth

IPC分类号： G01F1/74

CPC分类号： G01F1/74 ,  G01F1/44 ,  G01F1/50 ,  G01F1/58

摘要： A method for determining the flow rates of a multi-component mixture in a pipe including a gas phase and a liquid phase comprising an emulsion of oil and water, the emulsion being either of the water continuous type or the oil continuous type, the method comprising the following steps: a. the flow rates of the individual components of the multi-component mixture are measured, b. the Reynolds number of the multi -component mixture is measured, c. the emulsion type of the liquid phase of the multi-component mixture is determined, and d. based on the results from steps b and c, a more accurate flow-rate of the individual components of the multi-component mixture and a fluid property of at least one of the components of the multi-component mixture are calculated. An apparatus for performing the method is also disclosed.

摘要翻译： 一种用于确定包括气相和包含油和水的乳液的液相的管中多组分混合物的流速的方法，所述乳液是水连续型或油连续型中的任一种，所述方法包括 步骤如下：a。 测量多组分混合物的单个组分的流速，b。 测量多组分混合物的雷诺数，c。 确定多组分混合物的液相的乳液类型，并且d。 基于来自步骤b和c的结果，计算多组分混合物的各组分的更精确的流速和多组分混合物的至少一种组分的流体性质。 还公开了用于执行该方法的设备。

公开(公告)号：EP3014225A1

公开(公告)日：2016-05-04

申请号：EP14742082.2

申请日：2014-06-26

申请人： Carefusion 303 Inc.

发明人： DESILVA, Adrian D. ,  VU, Huy Thanh ,  LE, Richard ,  MILLER, Jeffrey Harold ,  GONZALEZ, Hector ,  VALDEZ, Raul ,  WANG, Chiun

IPC分类号： G01F1/36 ,  G01F1/34 ,  A61M16/00

CPC分类号： A61M16/12 ,  A61M16/024 ,  A61M16/106 ,  A61M16/208 ,  A61M2016/0027 ,  A61M2016/0039 ,  A61M2205/12 ,  A61M2205/3317 ,  A61M2205/3368 ,  A61M2205/50 ,  A61M2205/6018 ,  A61M2205/6054 ,  A61M2205/702 ,  G01F1/50

摘要： A flow cassette has a housing with an inlet and an outlet and a passage therebetween. The flow cassette also has a temperature sensor disposed within the passage and configured to measure the temperature of a fluid flowing through the passage, a flow rate sensor disposed within the passage and configured to measure a flow rate of the fluid flowing through the passage, and a processor coupled to the temperature sensor and flow rate sensor. The processor is configured to accept measurements of temperature and flow rate from the temperature sensor and flow rate sensor, respectively, and provide a compensated flow rate.

摘要翻译： 流动盒具有壳体，其具有入口和出口以及它们之间的通道。 流量盒还具有设置在通道内的温度传感器，其被配置为测量流过通道的流体的温度，流量传感器，其设置在通道内并且被配置成测量流过通道的流体的流量; 耦合到温度传感器和流量传感器的处理器。 处理器被配置为分别接受来自温度传感器和流量传感器的温度和流量的测量值，并提供补偿的流量。

公开(公告)号：EP2848900A1

公开(公告)日：2015-03-18

申请号：EP13184603.2

申请日：2013-09-16

申请人： Siemens Aktiengesellschaft

发明人： Geitung, Tore

IPC分类号： G01F1/50

CPC分类号： G01F1/50

摘要： A method of determining a flow rate of a medium flowing through a section of a pipe by means of a flow meter is provided. In the method, at least a differential pressure is measured across a flow restriction in the section of the pipe. A correction factor is determined. The correction factor is determined in dependence on the measured differential pressure and on the configuration of the flow meter. The flow rate of the medium is determined on the basis of the measured differential pressure and the determined correction factor.

摘要翻译： 提供了一种通过流量计确定流过管道的一部分的介质的流量的方法。 在该方法中，在管道的部分中的流量限制下至少测量差压。 确定校正因子。 校正因子取决于测得的差压和流量计的结构。 基于所测量的压差和确定的校正因子确定介质的流速。