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1.发明申请MULTIVARIABLE PROCESS FLUID FLOW DEVICE WITH FAST RESPONSE FLOW CALCULATION 有权具有快速响应流量计算的多重流程流体流动装置公开(公告)号：US20100106433A1
公开(公告)日：2010-04-29
申请号：US12606261
申请日：2009-10-27
申请人： Lowell A. Kleven , David E. Wiklund
发明人： Lowell A. Kleven , David E. Wiklund
摘要： 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.
摘要翻译： 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。
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2.发明授权Flow measurement compensation technique for use with an averaging pitot tube type primary element 失效用于平均皮托管式主要元件的流量测量补偿技术
公开(公告)号：US5817950A
公开(公告)日：1998-10-06
申请号：US582905
申请日：1996-01-04
IPC分类号： G01F1/46
CPC分类号： G01F1/46
摘要： 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.
摘要翻译： 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）。
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公开(公告)号：USD358782S
公开(公告)日：1995-05-30
申请号：US13150
申请日：1993-09-20
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公开(公告)号：US08175754B2
公开(公告)日：2012-05-08
申请号：US12470829
申请日：2009-05-22
申请人： David E. Wiklund
发明人： David E. Wiklund
CPC分类号： G01F1/363 , Y10T137/0324 , Y10T137/7306
摘要： A method of providing configuration information for a process fluid flow device is provided. The method includes receiving a process fluid selection and providing at least one selectable fluid property relative to the selected process fluid and receiving at least one process fluid property selection. Information relative to a primary element is also received. Reception of a reset relative to the process fluid selection, the process fluid property, and the primary element selection, clears the respective information. The configuration information is provided to a process fluid flow device based on the process fluid selection, the process fluid property and the primary element information.
摘要翻译： 提供了一种提供过程流体流动装置的配置信息的方法。 该方法包括接收过程流体选择并相对于所选择的过程流体提供至少一个可选择的流体特性并且接收至少一个过程流体属性选择。 还接收与主要元素相关的信息。 接收相对于过程流体选择，过程流体属性和主要元素选择的复位清除相应的信息。 基于过程流体选择，过程流体属性和主要元件信息将配置信息提供给过程流体流动装置。
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公开(公告)号：US07949495B2
公开(公告)日：2011-05-24
申请号：US11205745
申请日：2005-08-17
CPC分类号： G01F1/363 , G01F1/50 , G01F25/0007 , G05B13/0275 , G05B21/02 , G05B23/0229 , G05D7/0635
摘要： A process variable transmitter with diagnostics based on power spectral density (PSD) analysis of a process variable sensor signal is provided. In one embodiment, the process variable transmitter is a pressure transmitter and the diagnostics are used to diagnose impulse line obstruction or impending obstruction. Other diagnostics are also useful such as diagnosing primary element degradation. The sensor signal is digitized and the digitized signal is transferred into the frequency domain. The power of the frequencies on the sensor signal is examined to provide the enhanced diagnostics. In one aspect diagnostics are generated directly with the sensor PSD data. In another aspect, the PSD analysis is used to tune a filter in order to enhance traditional diagnostic algorithms.
摘要翻译： 提供了一种基于过程变量传感器信号功率谱密度（PSD）分析诊断的过程变量发生器。 在一个实施例中，过程变量发射器是压力变送器，并且诊断用于诊断脉冲线阻塞或即将发生的阻塞。 其他诊断也是有用的，例如诊断主要元素降解。 传感器信号被数字化，数字化信号被传送到频域。 检查传感器信号上的频率的功率以提供增强的诊断。 在一个方面，使用传感器PSD数据直接生成诊断。 另一方面，PSD分析用于调整滤波器以增强传统的诊断算法。
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公开(公告)号：US20090292400A1
公开(公告)日：2009-11-26
申请号：US12470829
申请日：2009-05-22
申请人： David E. Wiklund
发明人： David E. Wiklund
IPC分类号： G05D7/06
CPC分类号： G01F1/363 , Y10T137/0324 , Y10T137/7306
摘要： A method of providing configuration information for a process fluid flow device is provided. The method includes receiving a process fluid selection and providing at least one selectable fluid property relative to the selected process fluid and receiving at least one process fluid property selection. Information relative to a primary element is also received. Reception of a reset relative to the process fluid selection, the process fluid property, and the primary element selection, clears the respective information. The configuration information is provided to a process fluid flow device based on the process fluid selection, the process fluid property and the primary element information.
摘要翻译： 提供了一种提供过程流体流动装置的配置信息的方法。 该方法包括接收过程流体选择并相对于所选择的过程流体提供至少一个可选择的流体特性并且接收至少一个过程流体属性选择。 还接收与主要元素相关的信息。 接收相对于过程流体选择，过程流体属性和主要元素选择的复位清除相应的信息。 基于过程流体选择，过程流体属性和主要元件信息将配置信息提供给过程流体流动装置。
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公开(公告)号：US06843139B2
公开(公告)日：2005-01-18
申请号：US10387088
申请日：2003-03-12
CPC分类号： G01F1/40 , G01F1/363 , G01F15/022
摘要： An instrument used to control fluid flow. The instrument has a flow restrictor between an inlet and an outlet. First and second multisensor have sensing surfaces in the inlet and outlet that sense pressures and temperatures of the fluid flow. A circuit generates a mass flow output based on a difference between the pressure in the inlet and the pressure in the outlet. The mass flow output including a temperature correction as a function of at least one of the sensed temperatures in the inlet and outlet.
摘要翻译： 用于控制流体流动的仪器。 仪器在入口和出口之间具有限流器。 第一和第二多传感器在入口和出口具有检测流体流动压力和温度的感测表面。 电路基于入口中的压力和出口压力之间的差异产生质量流量输出。 质量流量输出包括作为入口和出口中感测到的温度中的至少一个的函数的温度校正。
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公开(公告)号：US06412353B1
公开(公告)日：2002-07-02
申请号：US09400503
申请日：1999-09-21
IPC分类号： G01F132
CPC分类号： G01F15/024 , G01F1/3254 , G01F1/329
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US06253624B1
公开(公告)日：2001-07-03
申请号：US09006451
申请日：1998-01-13
申请人： David A. Broden , David E. Wiklund
发明人： David A. Broden , David E. Wiklund
IPC分类号： G01F134
摘要： A pressure transmitter produces signals indicative of a flow in a pipe. The transmitter has a pressure sensor that is fluidly coupled to two ports in the pipe, and the pipe has a substantially constant cross-section between the two ports. Aspects of the invention include a circuit coupled to the pressure sensor that produces a digital value related to the fluid flow as a function of the pressure difference between the two ports.
摘要翻译： 压力变送器产生指示管道中的流动的信号。 变送器具有流体耦合到管道中的两个端口的压力传感器，并且管道在两个端口之间具有基本恒定的横截面。 本发明的方面包括耦合到压力传感器的电路，其产生与流体流动相关的数字值作为两个端口之间的压力差的函数。
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公开(公告)号：US4350047A
公开(公告)日：1982-09-21
申请号：US188188
申请日：1980-09-18
CPC分类号： G01F1/3218
摘要： A vortex-shedding flowmeter comprising two stationary vortex-shedding cross-members (i.e., bluff bodies) disposed transversely to a stream of fluid. Each cross-member has a bluff face with sharp Karman vortex generating edges with independently selected edge to edge widths d of from 10 to 40% of the inside width of the conduit through which the fluid flows and lengths 1 of from 0.3 to 2.0d. The second cross-member is disposed downstream of the first cross-member a distance of from 4 to 15 times the width d of the first cross-member. Any sensor may be used in any location provided it or they sense the Karman vortices generated by co-action of the two cross-members. This flowmeter provides strong signals with a high signal to noise ratio and high Strouhal number.
摘要翻译： 涡流脱流流量计包括横向于流体流设置的两个固定的涡流脱落横向构件（即非流线形体）。 每个横向构件具有防撬面，其具有尖锐的卡门漩涡产生边缘，其独立选择的边缘宽度d为流体流过的导管内部宽度的10至40％，长度1为0.3至2.0d。 第二横向构件设置在第一横向构件的下游的距离为第一横向构件的宽度d的4至15倍。 任何传感器可以在任何位置使用，只要它们感觉到通过两个横梁的协同作用产生的卡门涡流。 该流量计提供具有高信噪比和高Strouhal数的强信号。
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