Enhanced velocity estimation in ultrasonic flow meters
    2.
    发明授权
    Enhanced velocity estimation in ultrasonic flow meters 有权
    超声波流量计增强速度估计

    公开(公告)号:US06837113B1

    公开(公告)日:2005-01-04

    申请号:US10656571

    申请日:2003-09-05

    IPC分类号: G01F1/66 G01F1/20

    CPC分类号: G01F1/662

    摘要: Methods and apparatus for operating an ultrasonic flow meter to accurately estimate the average flow velocity in a pipe when the meter has at least one failed chord and one non-failed chord. The method partitions the velocity range into a number of consecutive, non-overlapping “bins,” where separate bins are maintained for each chord and each flow direction. Each bin stores a chord proportion value and, in some embodiments, a chord velocity value. The bins are initialized with pre-selected values and, during normal operation, updated, or trained, based on the measured velocities. When a chord fails, and there is at least one non-failed chord, an estimated proportion value for each non-failed chord is generated using the values stored in the bins. The estimated average flow velocity is then calculated by dividing the summation of the measured flow velocities, from the non-failed chords, by the summation of the estimated proportions.

    Chordal gas flow meter with transducers installed outside the pressure boundary, and method
    5.
    发明授权
    Chordal gas flow meter with transducers installed outside the pressure boundary, and method 有权
    带压力边界的换能器的和弦气体流量计及方法

    公开(公告)号:US09322689B2

    公开(公告)日:2016-04-26

    申请号:US14031837

    申请日:2013-09-19

    IPC分类号: G01F1/66

    CPC分类号: G01F1/662 G01F1/665 G01F1/667

    摘要: A flowmeter for detecting gas flow rates in a pipe including a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses that extend through the container and a plurality of housings. Each recess having one housing of the plurality of housings. Each housing having a pressure containing window. The flowmeter includes a plurality of transducers, with one transducer of the plurality of transducers disposed in each housing in each recess. The transducers transmitting ultrasonic signals through the windows into and receiving ultrasonic signals through the windows from the channel. The flowmeter includes acoustic isolators disposed about the housing along the housing's length and between the housings and the container which acoustically isolate the housings from the container. The flowmeter includes a controller in electrical communication with the plurality of transducers which determines the gas flow rate through the channel by measuring transit times of signals transmitted by and received by the transducers.

    摘要翻译: 一种用于检测管道中的气体流量的流量计,包括构造成附接到具有气体流过的通道的管道的容器,以及延伸穿过容器和多个壳体的多个凹部。 每个凹部具有多个壳体的一个壳体。 每个壳体具有压力容纳窗口。 流量计包括多个换能器,多个换能器中的一个换能器设置在每个凹槽中的每个壳体中。 换能器通过窗户将超声波信号通过窗口传送进入并通过窗口接收超声波信号。 该流量计包括声隔离器,其围绕壳体的长度设置在壳体周围,并且在壳体和容器之间,其将壳体与容器隔离。 流量计包括与多个换能器电连通的控制器,其通过测量由换能器传送和接收的信号的传播时间来确定通过通道的气体流速。

    Ultrasonic flowmeter with internal surface coating and method
    6.
    发明授权
    Ultrasonic flowmeter with internal surface coating and method 有权
    超声波流量计具有内表面涂层和方法

    公开(公告)号:US09170140B2

    公开(公告)日:2015-10-27

    申请号:US13464500

    申请日:2012-05-04

    IPC分类号: G01F1/66 G01F15/00 G01F15/14

    摘要: An ultrasonic flowmeter includes a meter body including a flow passage having wetted surfaces through which fluid flow is to be measured. The flowmeter includes a non-stick coating adhered to the wetted surfaces of the meter body. The flowmeter includes a first transducer and at least a second transducer arranged around the flow passage to transmit and receive ultrasonic energy. The flowmeter includes an electronic unit designed to generate and receive electronic signals from the transducers and to process the signals in order to compute information related to the fluid flow rate through the passage. A method for measuring fluid flow with an ultrasonic flowmeter. A method of making an ultrasonic flowmeter.

    摘要翻译: 超声波流量计包括仪表主体,其包括具有流体流动被测量的湿表面的流动通道。 流量计包括粘附到仪表体的湿表面的不粘涂层。 流量计包括第一换能器和布置在流动通道周围的至少第二换能器以发射和接收超声波能量。 流量计包括一个电子单元,设计用于从换能器产生和接收电子信号,并处理信号,以便计算与通过通道的流体流速相关的信息。 一种用超声波流量计测量流体流量的方法。 制造超声波流量计的方法。

    Chordal Gas Flowmeter with Transducers Installed Outside the Pressure Boundary, Housing and Method
    7.
    发明申请
    Chordal Gas Flowmeter with Transducers Installed Outside the Pressure Boundary, Housing and Method 审中-公开
    Chordal气体流量计安装在压力边界以外的传感器,外壳和方法

    公开(公告)号:US20140013859A1

    公开(公告)日:2014-01-16

    申请号:US14031837

    申请日:2013-09-19

    IPC分类号: G01F1/66

    CPC分类号: G01F1/662 G01F1/665 G01F1/667

    摘要: A flowmeter for detecting gas flow rates in a pipe includes a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses that extend through the container and a plurality of housings. The flowmeter includes a plurality of transducers, with one transducer of the plurality of transducers disposed in each recess. The transducers transmit ultrasonic signals into and receive ultrasonic signals from the channel. The flowmeter includes a controller in electrical communication with the plurality of transducers which determines the gas flow rate through the channel by measuring transit times of signals transmitted by and received by the transducers. A housing for an ultrasonic transducer for a flowmeter which is inserted into a recess of a container that acoustically isolates the housing from the container. A method for detecting gas flow rates in a pipe.

    摘要翻译: 用于检测管道中的气体流量的流量计包括:容器,其构造成附接到具有气体流过的通道的管道;以及延伸穿过容器的多个凹部和多个壳体。 流量计包括多个换能器,多个换能器中的一个换能器设置在每个凹槽中。 换能器将超声波信号发送到通道中并从通道接收超声波信号。 流量计包括与多个换能器电连通的控制器,其通过测量由换能器传送和接收的信号的传播时间来确定通过通道的气体流速。 一种用于流量计的超声波换能器的壳体,其被插入到将壳体与容器隔离的容器的凹部中。 一种用于检测管道中的气体流量的方法。

    Chordal gas flowmeter with transducers installed outside the pressure boundary, housing and method
    8.
    发明授权
    Chordal gas flowmeter with transducers installed outside the pressure boundary, housing and method 有权
    Chordal气体流量计安装在压力边界以外的换能器,外壳和方法

    公开(公告)号:US08534138B2

    公开(公告)日:2013-09-17

    申请号:US13068772

    申请日:2011-05-19

    IPC分类号: G01F1/66

    CPC分类号: G01F1/667 G01F1/662

    摘要: A flowmeter for detecting gas flow rates in a pipe includes a container configured to be attached to the pipe having a channel through which the gas flows, and a plurality of recesses that extend through the container and a plurality of housings. Each recess has a housing which contains pressure in the channel. Each housing has a window that is in acoustic communication with the channel. The flowmeter includes a plurality of transducers, with one transducer of the plurality of transducers disposed in each recess. The transducers transmit ultrasonic signals into and receive ultrasonic signals from the channel through the window in the housing in which a transducer is disposed. The flowmeter includes a controller in electrical communication with the plurality of transducers which determines the gas flow rate through the channel by measuring transit times of signals transmitted by and received by the transducers. A housing for an ultrasonic transducer for a flowmeter which is inserted into a recess of a container that acoustically isolates the housing from the container. A method for detecting gas flow rates in a pipe. A transducer for an ultrasonic flowmeter.

    摘要翻译: 用于检测管道中的气体流量的流量计包括:容器,其构造成附接到具有气体流过的通道的管道;以及延伸穿过容器的多个凹部和多个壳体。 每个凹槽具有在通道中包含压力的壳体。 每个壳体具有与通道声学连通的窗口。 流量计包括多个换能器,多个换能器中的一个换能器设置在每个凹槽中。 换能器将超声波信号从通道穿过其中设置有换能器的壳体中的窗口发射并接收超声波信号。 流量计包括与多个换能器电连通的控制器,其通过测量由换能器传送和接收的信号的传播时间来确定通过通道的气体流速。 一种用于流量计的超声波换能器的壳体,其被插入到将壳体与容器隔离的容器的凹部中。 一种用于检测管道中的气体流量的方法。 用于超声波流量计的换能器。

    Meter proving method and system
    9.
    发明授权
    Meter proving method and system 有权
    仪表验证方法和系统

    公开(公告)号:US08122754B2

    公开(公告)日:2012-02-28

    申请号:US12605495

    申请日:2009-10-26

    IPC分类号: G01F25/00

    CPC分类号: G01F25/0007 Y10T137/0318

    摘要: A meter proving method and system. At lease some of the illustrative embodiments are methods comprising establishing a prover time by a prover device, measuring a flow rate of a fluid with a flow meter that uses multiple measurements taken over a period of time to produce each individual flow rate value (the flow meter electrically coupled to the prover device), and generating a meter volume over the prover time based on the flow rate. The generating the meter volume based on the flow rate does not involve: generating a pulse train output signal by the flow meter; and generating the meter volume based on an attribute of the pulse train.

    摘要翻译: 仪表验证方法和系统。 至少一些示例性实施例是一些方法,包括由证明器装置建立证明时间,使用流量计测量流体的流速,所述流量计使用在一段时间内进行的多次测量以产生每个单独的流量值(流量 仪表电耦合到证明器设备),并且基于流速在证明时间上产生计量器体积。 基于流量生成仪表体积不涉及:通过流量计产生脉冲串输出信号; 并且基于脉冲序列的属性生成计量器体积。

    Methods for determining transducer delay time and transducer separation in ultrasonic flow meters
    10.
    发明授权
    Methods for determining transducer delay time and transducer separation in ultrasonic flow meters 有权
    在超声波流量计中确定换能器延迟时间和换能器分离的方法

    公开(公告)号:US07152490B1

    公开(公告)日:2006-12-26

    申请号:US11204068

    申请日:2005-08-15

    IPC分类号: G01F1/66

    CPC分类号: G01F1/667 G01F1/668

    摘要: Methods and related systems for determining transducer delay time and transducer separation in ultrasonic flow meters. At least some of the illustrative embodiments are a method comprising measuring a delay time for a first transducer pair, measuring a total measured time for ultrasonic signals transmitted between a second transducer pair in an ultrasonic meter in which both the first and second transducer pairs are installed, calculating a parameter associated with the second transducer pair using the delay time of the first transducer pair and the total measured time for said second transducer pair.

    摘要翻译: 在超声波流量计中确定换能器延迟时间和换能器分离的方法和相关系统。 示例性实施例中的至少一些是包括测量第一换能器对的延迟时间的方法,测量在超声波计中的第二换能器对之间传输的超声信号的总测量时间,其中安装了第一和第二换能器对 使用所述第一换能器对的延迟时间和所述第二换能器对的总测量时间来计算与所述第二换能器对相关联的参数。