公开(公告)号：US20100106433A1

公开(公告)日：2010-04-29

申请号：US12606261

申请日：2009-10-27

Applicant: Lowell A. Kleven ,  David E. Wiklund

Inventor： Lowell A. Kleven ,  David E. Wiklund

IPC: G01F1/34 ,  G06F19/00

CPC classification number: G01F1/363 ,  G01F1/50 ,  G01F1/88

Abstract: A process fluid flow device includes process communication circuitry, a processor, and measurement circuitry. The process communication circuitry is configured to communicate with at least one additional process device. The processor is coupled to the process communication circuitry and is configured to execute instructions to provide a plurality of cycles, wherein each cycle includes a number of flow-related calculations. Measurement circuitry is operably coupleable to a plurality of process variable sensors to obtain an indication of differential pressure during each cycle, and to obtain static pressure, and process fluid temperature. The processor is configured to compute a process fluid flow value using a current differential pressure sensor indication and at least one flow-related value calculated during a previous cycle. The process communication circuitry communicates the computed process fluid flow value to the at least one additional process device.

Abstract translation: 过程流体流动装置包括过程通信电路，处理器和测量电路。 过程通信电路被配置为与至少一个附加过程设备进行通信。 处理器耦合到处理通信电路，并且被配置为执行指令以提供多个周期，其中每个周期包括多个与流量相关的计算。 测量电路可操作地耦合到多个过程变量传感器，以获得每个循环期间差压的指示，并获得静压力和处理流体温度。 处理器被配置为使用电流差压传感器指示和在先前循环期间计算的至少一个流量相关值来计算过程流体流量值。 过程通信电路将计算的过程流体流量值传递给至少一个附加过程装置。

公开(公告)号：US06412353B1

公开(公告)日：2002-07-02

申请号：US09400503

申请日：1999-09-21

Applicant: Lowell A. Kleven ,  Robert C. Hedtke ,  David E. Wiklund

Inventor： Lowell A. Kleven ,  Robert C. Hedtke ,  David E. Wiklund

IPC: G01F132

CPC classification number: G01F15/024 ,  G01F1/3254 ,  G01F1/329

Abstract: A vortex sensor senses the vortices generated by a vortex generator. A temperature sensor, disposed at a streamlined body within a flow tube, measures a temperature of fluid carried by the flow tube. A circuit coupled to the vortex sensor and to the temperature sensor creates an output indicative of the flow.

Abstract translation: 涡流传感器检测涡流发生器产生的涡流。 设置在流管内的流线型体上的温度传感器测量由流管承载的流体的温度。 耦合到涡流传感器和温度传感器的电路产生指示流量的输出。

公开(公告)号：US20090292484A1

公开(公告)日：2009-11-26

申请号：US12470878

申请日：2009-05-22

Applicant: David E. Wiklund ,  Lowell A. Kleven

Inventor： David E. Wiklund ,  Lowell A. Kleven

IPC: G01F1/34

CPC classification number: G01F1/363 ,  G01F1/50 ,  G01F1/88 ,  G01F15/046 ,  G01K17/06

Abstract: A process fluid flow device includes a power supply module, a process communication module, a processor and measurement circuitry. The process communication circuitry is coupled to the power supply module and to the processor. The measurement circuitry is operably coupleable to plurality of process variable sensors to obtain an indication of differential pressure, static pressure and process fluid temperature. The processor is configured to compute process fluid mass flow, and to use the static pressure and process fluid temperature to obtain an energy per unit mass value relative to the process fluid and to provide an energy flow indication.

Abstract translation: 过程流体流动装置包括电源模块，过程通信模块，处理器和测量电路。 过程通信电路耦合到电源模块和处理器。 测量电路可操作地耦合到多个过程变量传感器以获得差压，静压和过程流体温度的指示。 处理器被配置为计算过程流体质量流量，并且使用静态压力和过程流体温度来获得相对于过程流体的每单位质量值的能量并且提供能量流量指示。

公开(公告)号：US06484590B1

公开(公告)日：2002-11-26

申请号：US09400562

申请日：1999-09-21

Applicant: Lowell A. Kleven ,  Robert C. Hedtke ,  David E. Wiklund

Inventor： Lowell A. Kleven ,  Robert C. Hedtke ,  David E. Wiklund

IPC: G01F132

CPC classification number: G01F15/024 ,  G01F1/3254 ,  G01F1/329

Abstract: A method for measuring fluid flow includes generating vortices in a fluid and relating the fluid flow to a first set of fluid parameters to obtain a first relationship, and relating the fluid flow to a second set of fluid parameters to obtain a second relationship. The first and second sets of fluid parameters are monitored. A first flow value is calculated from the first set of monitor fluid parameters and the first relationship. The second relationship is adjusted based on the first flow value. The output value is calculated from the second set of monitored fluid parameters and the adjusted second relationship.

Abstract translation: 用于测量流体流动的方法包括在流体中产生涡流并将流体流与第一组流体参数相关联以获得第一关系，并将流体流与第二组流体参数相关联以获得第二关系。 监测第一组和第二组流体参数。 从第一组监测流体参数和第一关系计算第一流量值。 基于第一流量值调整第二关系。 输出值由第二组监测流体参数和经调整的第二关系计算。

公开(公告)号：US06170338B2

公开(公告)日：2001-01-09

申请号：US08826167

申请日：1997-03-27

Applicant: Lowell A. Kleven ,  Robert C. Hedtke ,  David E. Wiklund

Inventor： Lowell A. Kleven ,  Robert C. Hedtke ,  David E. Wiklund

IPC: G01F132

CPC classification number: G01F15/024 ,  G01F1/3254 ,  G01F1/329

Abstract: A vortex sensor senses the generated vortices and provides a vortex signal. A filtering circuit is coupling to the vortex sensor to receive the vortex signal and provide an output indicative of fluid flow. A temperature sensor senses a temperature of the fluid and provides a temperature value, while a pressure sensor senses a pressure of the fluid and provides a pressure value. A processor is operably coupled to the filtering circuit, the temperature sensor, and the pressure sensor for receiving the output, the temperature value, and the pressure value, respectively. The processor calculates a calibration factor as a function of the output, the temperature value, and the pressure value for use in calculating the output value indicative of the flow rate of the fluid.

Abstract translation: 涡流传感器感测所产生的涡流并提供涡流信号。 滤波电路耦合到涡流传感器以接收涡流信号并提供指示流体流动的输出。 温度传感器检测流体的温度并提供温度值，同时压力传感器感测流体的压力并提供压力值。 处理器可操作地耦合到过滤电路，温度传感器和用于分别接收输出，温度值和压力值的压力传感器。 处理器根据输出，温度值和压力值来计算校准因子，用于计算表示流体流量的输出值。

公开(公告)号：US08849589B2

公开(公告)日：2014-09-30

申请号：US12470878

申请日：2009-05-22

Applicant: David E. Wiklund ,  Lowell A. Kleven

Inventor： David E. Wiklund ,  Lowell A. Kleven

IPC: G01F1/34 ,  G01F1/50 ,  G01F1/88 ,  G01F1/36 ,  G01F15/04 ,  G01K17/06

CPC classification number: G01F1/363 ,  G01F1/50 ,  G01F1/88 ,  G01F15/046 ,  G01K17/06

Abstract: A process fluid flow device includes a power supply module, a process communication module, a processor and measurement circuitry. The process communication circuitry is coupled to the power supply module and to the processor. The measurement circuitry is operably coupleable to plurality of process variable sensors to obtain an indication of differential pressure, static pressure and process fluid temperature. The processor is configured to compute process fluid mass flow, and to use the static pressure and process fluid temperature to obtain an energy per unit mass value relative to the process fluid and to provide an energy flow indication.

Abstract translation: 过程流体流动装置包括电源模块，过程通信模块，处理器和测量电路。 过程通信电路耦合到电源模块和处理器。 测量电路可操作地耦合到多个过程变量传感器以获得差压，静压和过程流体温度的指示。 处理器被配置为计算过程流体质量流量，并且使用静态压力和过程流体温度来获得相对于过程流体的每单位质量值的能量并且提供能量流量指示。

公开(公告)号：US08655604B2

公开(公告)日：2014-02-18

申请号：US12606261

申请日：2009-10-27

Applicant: Lowell A. Kleven ,  David E. Wiklund

Inventor： Lowell A. Kleven ,  David E. Wiklund

IPC: G01F1/00

CPC classification number: G01F1/363 ,  G01F1/50 ,  G01F1/88

Abstract: A process fluid flow device includes process communication circuitry, a processor, and measurement circuitry. The process communication circuitry is configured to communicate with at least one additional process device. The processor is coupled to the process communication circuitry and is configured to execute instructions to provide a plurality of cycles, wherein each cycle includes a number of flow-related calculations. Measurement circuitry is operably coupleable to a plurality of process variable sensors to obtain an indication of differential pressure during each cycle, and to obtain static pressure, and process fluid temperature. The processor is configured to compute a process fluid flow value using a current differential pressure sensor indication and at least one flow-related value calculated during a previous cycle. The process communication circuitry communicates the computed process fluid flow value to the at least one additional process device.

Abstract translation: 过程流体流动装置包括过程通信电路，处理器和测量电路。 过程通信电路被配置为与至少一个附加过程设备进行通信。 处理器耦合到处理通信电路，并且被配置为执行指令以提供多个周期，其中每个周期包括多个与流量相关的计算。 测量电路可操作地耦合到多个过程变量传感器，以获得每个循环期间差压的指示，并获得静压力和处理流体温度。 处理器被配置为使用电流差压传感器指示和在先前循环期间计算的至少一个流量相关值来计算过程流体流量值。 过程通信电路将计算的过程流体流量值传递给至少一个附加过程装置。

公开(公告)号：US5606513A

公开(公告)日：1997-02-25

申请号：US258262

申请日：1994-06-09

Applicant: Bennett L. Louwagie ,  Gregory S. Munson ,  David E. Wiklund ,  Michael J. Zweber ,  David A. Broden ,  Brian J. Bischoff ,  Gary P. Corpron

Inventor： Bennett L. Louwagie ,  Gregory S. Munson ,  David E. Wiklund ,  Michael J. Zweber ,  David A. Broden ,  Brian J. Bischoff ,  Gary P. Corpron

IPC: G01F1/36 ,  G01F1/88 ,  G01F15/06 ,  G01F23/14 ,  G01F23/18 ,  G01L7/08 ,  G01L9/04 ,  G01L19/00 ,  G01L19/08 ,  G01C25/00

CPC classification number: G01F23/18 ,  G01F1/363 ,  G01F1/50 ,  G01F1/88 ,  G01F15/063 ,  G01L19/0007 ,  G01L19/0015 ,  G01L19/083 ,  G01L9/045

Abstract: A two-wire transmitter senses a pressure using an internal pressure sensor. The transmitter includes an input for receiving a process variable from a remote sensor which is separated from the transmitter. Circuitry in the transmitters transmits information on a two-wire process control loop which is related to the sensed pressure and the process variable.

Abstract translation: 双线变送器使用内部压力传感器感测压力。 发射机包括用于接收来自与发射机分离的远程传感器的过程变量的输入。 发射机中的电路在与感测的压力和过程变量相关的两线过程控制回路上发送信息。

公开(公告)号：US4559832A

公开(公告)日：1985-12-24

申请号：US534979

申请日：1983-09-23

Applicant: Brian J. Burlage ,  David E. Wiklund ,  Gary A. Lenz

Inventor： Brian J. Burlage ,  David E. Wiklund ,  Gary A. Lenz

IPC: G01F1/32 ,  G01L9/00 ,  G01L7/08 ,  G01L9/08

CPC classification number: G01L9/0022 ,  G01F1/3254 ,  Y10S73/04

Abstract: A piezoelectric fluid pressure fluctuation frequency sensor, preferably for a vortex-shedding flowmeter. A piezoelectric transducer is located in a sensor chamber between and in physical contact with a diaphragm and a chamber surface. Pressure fluctuations in a von Karman vortex street outside the diaphragm compress the transducer, between the diaphragm and the chamber surface. The transducer generates a responsive electrical signal which is representative of the pressure fluctuations.

Abstract translation: 压电流体压力波动频率传感器，优选用于涡流脱流流量计。 压电传感器位于传感器室之间，并且与隔膜和室表面物理接触。 隔膜外侧的von Karman涡街的压力波动压缩了隔膜和腔室表面之间的传感器。 换能器产生代表压力波动的响应电信号。

公开(公告)号：US5817950A

公开(公告)日：1998-10-06

申请号：US582905

申请日：1996-01-04

Applicant: David E. Wiklund ,  Brian J. Bischoff

Inventor： David E. Wiklund ,  Brian J. Bischoff

IPC: G01F1/46

CPC classification number: G01F1/46

Abstract: A transmitter in a process control system for measuring flow rate measures total pressure (P.sub.TOT) and differential pressure (h) of process fluid flowing through a process pipe. The static pressure (P.sub.STAT) is determined based upon the total pressure (P.sub.TOT). The calculated static pressure is used to determine the fluid density (.rho.) and the gas expansion factor (Y.sub.1) of the process fluid flowing in the pipe. This information is used to calculate flow rate (Q) of the process fluid.

Abstract translation: 用于测量流量的过程控制系统中的变送器测量流过过程管道的工艺流体的总压力（PTOT）和压差（h）。 静压（PSTAT）是根据总压（PTOT）来确定的。 计算静态压力用于确定在管道中流动的工艺流体的流体密度（rho）和气体膨胀系数（Y1）。 该信息用于计算过程流体的流量（Q）。