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1. 发明授权

US07058549B2 Apparatus and method for measuring unsteady pressures within a large diameter pipe 有权
标题翻译：用于测量大直径管道内的不稳定压力的装置和方法
公开(公告)号：US07058549B2
公开(公告)日：2006-06-06
申请号：US10762408
申请日：2004-01-21
申请人： Daniel L. Gysling , Douglas H. Loose , Robert Maron , Thomas Engel , Paul Croteau
发明人： Daniel L. Gysling , Douglas H. Loose , Robert Maron , Thomas Engel , Paul Croteau
IPC分类号： G06F19/00 , G06F1/20
CPC分类号： G01F1/7082 , G01F1/74 , G01N2291/02836 , G01N2291/02872
摘要： An apparatus 10 is provided that includes a spatial array of at least two unsteady pressure sensors 18–21 placed at predetermined axial locations x1–xN disposed axially along a pipe 14 for measuring at least one parameter of a fluid 12 flowing in the pipe 14. The pressure sensors 18–21 comprise a plurality of pressure sensing elements such as piezoelectric film sensors 23 for measuring unsteady pressures associated with acoustical pressures and/or vortical disturbances. The sensing elements are disposed circumferentially around the pipe and spaced a predetermined distance. The pressure signals P1(t)–PN(t) provided by the pressure sensors 18–21 are processed by a processing unit to provide an output signal indicative of a parameter of the fluid.
摘要翻译：提供了一种装置10，其包括至少两个非定常压力传感器18-21的空间阵列，该至少两个不稳定压力传感器18-21放置在沿着管14轴向设置的预定轴向位置x 1 -x N 用于测量在管14中流动的流体12的至少一个参数。压力传感器18-21包括多个压力感测元件，例如用于测量与声压和/或旋涡相关的不稳定压力的压电膜传感器23。感测元件围绕管道周向设置并间隔预定距离。由压力传感器18-21提供的压力信号P 1（t）-P N N（t）由处理单元处理，以提供表示流体参数

2. 发明申请

US20050120799A1 Contact-based transducers for characterizing unsteady pressures in pipes 有权
公开(公告)号：US20050120799A1
公开(公告)日：2005-06-09
申请号：US10975745
申请日：2004-10-27
申请人： Daniel Gysling , Thomas Engel , Robert Maron , Paul Croteau
发明人： Daniel Gysling , Thomas Engel , Robert Maron , Paul Croteau
IPC分类号： G01L9/00
CPC分类号： G01L19/0023 , G01L15/00
摘要： A sensor head characterizes unsteady pressures in a fluid flowing within a pipe, as may be caused by one or both of acoustic waves propagating through the fluid within the pipe and/or pressure disturbances that convect with the fluid flowing in the pipe. The sensor head comprises a rigid support structure and at least one transducer attached to the rigid support structure. The rigid support structure holds the transducer in contact with an outer surface of the pipe. The at least one transducer senses relative movement between the outer surface of the pipe and the support structure and provides a signal indicative of unsteady pressures within the fluid at a corresponding axial position of the pipe in response to the relative movement. The support structure may be attached to each transducer in an array of transducers, and may include a handle secured thereto for manipulating the sensor head into contact with the pipe. Output signals from the transducers are provided to a processing unit, which processes the output signals to provide a signal indicative of at least one parameter of the flow process.

3. 发明申请

US20050050956A1 Contact-based transducers for characterizing unsteady pressures in pipes 审中-公开
标题翻译：用于表征管道中不稳定压力的接触传感器
公开(公告)号：US20050050956A1
公开(公告)日：2005-03-10
申请号：US10876013
申请日：2004-06-24
申请人： Daniel Gysling , Thomas Engel , Robert Maron , Paul Croteau
发明人： Daniel Gysling , Thomas Engel , Robert Maron , Paul Croteau
IPC分类号： G01F1/74 , G01L9/00 , G01L11/04 , G01L23/00 , G01L23/04
CPC分类号： G01L9/0001 , G01F1/7082 , G01F1/712 , G01F1/74 , G01L23/08
摘要： A sensor head characterizes unsteady pressures in a fluid flowing within a pipe, as may be caused by one or both of acoustic waves propagating through the fluid within the pipe and/or pressure disturbances that convect with the fluid flowing in the pipe. The sensor head comprises a rigid support structure and at least one transducer attached to the rigid support structure. The rigid support structure holds the transducer in contact with an outer surface of the pipe. The at least one transducer senses relative movement between the outer surface of the pipe and the support structure and provides a signal indicative of unsteady pressures within the fluid at a corresponding axial position of the pipe in response to the relative movement. The support structure may be attached to each transducer in an array of transducers, and may include a handle secured thereto for manipulating the sensor head into contact with the pipe. Output signals from the transducers are provided to a processing unit, which processes the output signals to provide a signal indicative of at least one parameter of the flow process.
摘要翻译：传感器头表示在管道内流动的流体中的不稳定压力，这可能是由传播通过管道内的流体的一个或两个声波和/或与在管道中流动的流体对流的压力扰动引起的。传感器头包括刚性支撑结构和附接到刚性支撑结构的至少一个换能器。刚性支撑结构使换能器与管的外表面接触。至少一个换能器感测管的外表面和支撑结构之间的相对运动，并且响应于相对运动而提供指示流体在管的相应轴向位置处的不稳定压力的信号。支撑结构可以以换能器阵列附接到每个换能器，并且可以包括固定到其上的手柄，用于操纵传感器头与管接触。来自换能器的输出信号被提供给处理单元，处理单元处理输出信号以提供指示流程过程的至少一个参数的信号。

4. 发明申请

US20050044966A1 Method and apparatus for measuring a parameter of a high temperature fluid flowing within a pipe using an array of piezoelectric based flow sensors 有权
标题翻译：用于使用基于压电的流量传感器的阵列测量在管内流动的高温流体的参数的方法和装置
公开(公告)号：US20050044966A1
公开(公告)日：2005-03-03
申请号：US10909612
申请日：2004-08-02
申请人： Daniel Gysling , Michael Davis , James Dunphy , Paul Croteau , Robert Maron
发明人： Daniel Gysling , Michael Davis , James Dunphy , Paul Croteau , Robert Maron
IPC分类号： G01F1/66 , G01F1/708 , G01F1/712 , G01F1/74
CPC分类号： G01F1/662 , G01F1/7082 , G01F1/712 , G01F1/74
摘要： A method, apparatus and system are provided to measure the process flow of a fluid or medium traveling in a pipe. The system and apparatus feature a standoff and piezoelectric-based sensor arrangement having a plurality of standoffs arranged on a pipe and a plurality of sensor bands, each arranged on a respective plurality of standoffs, each having at least one sensor made of piezoelectric material arranged thereon to detect unsteady pressure disturbances in the process flow in the pipe which in turn can be converted to the velocity of and/or speed of sound propagating within the pipe, and a cooling tube arranged in relation to the plurality of standoffs for actively cooling the sensor band; and further comprise a processing module for converting one or more sensor signals into a measurement containing information about the flow of the fluid or medium traveling in the pipe, as well as a pump and heat exchanger for processing the cooling fluid flowing through the cooling tube. The processing includes maintaining the cooling fluid at a desired operating temperature.
摘要翻译：提供了一种方法，装置和系统来测量在管道中行进的流体或介质的工艺流程。该系统和装置具有一个支座和基于压电的传感器装置，其具有布置在管道上的多个支座和多个传感器带，每个传感器带布置在相应的多个支座上，每个支架具有至少一个由压电材料制成的传感器以检测管道中的过程流动中的不稳定的压力扰动，其又可以转换成在管道内传播的声音的速度和/或速度，以及相对于多个支座布置的冷却管，用于主动冷却传感器带; 并且还包括用于将一个或多个传感器信号转换成包含关于在管道中流动的流体或介质的流动的信息的测量的处理模块，以及用于处理流过冷却管的冷却流体的泵和热交换器。该处理包括将冷却流体保持在期望的操作温度。

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