公开(公告)号：US07197938B2

公开(公告)日：2007-04-03

申请号：US10975745

申请日：2004-10-27

申请人： Daniel L. Gysling ,  Thomas W. Engel ,  Robert J. Maron ,  Paul F. Croteau

发明人： Daniel L. Gysling ,  Thomas W. Engel ,  Robert J. Maron ,  Paul F. 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.

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。

公开(公告)号：US06445868B1

公开(公告)日：2002-09-03

申请号：US09628114

申请日：2000-07-28

申请人： John Grunbeck ,  Christopher Chipman ,  Bradley A. Currier ,  Robert J. Maron

发明人： John Grunbeck ,  Christopher Chipman ,  Bradley A. Currier ,  Robert J. Maron

IPC分类号： G02B600

CPC分类号： G02B6/3644 ,  G02B6/4248

摘要： In an optical waveguide feedthrough assembly, and method of making such an assembly, a tubular member defines an axially elongated, annular surface, and the annular surface forms an axially elongated optical feedthrough cavity. An optical fiber or like waveguide is received through the axially-elongated optical feedthrough cavity, and is spaced radially inwardly relative to the annular surface to thereby define an axially-elongated annular cavity between the fiber and annular surface. An epoxy adhesive is introduced in its liquid phase into one end of the annular cavity, and is allowed to fill the annular cavity by capillary action. Upon filling the annular cavity, the epoxy hardens and cures and, in turn, adhesively secures the optical fiber within the tubular member. The annular surface defines a plurality of constrictions in the annular cavity to further secure the solid epoxy plug within the cavity, and prevent the plug from moving in response to axially-directed forces encountered in high pressure and/or high temperature applications.

摘要翻译： 在光波导馈通组件和制造这种组件的方法中，管状构件限定轴向细长的环形表面，并且环形表面形成轴向细长的光学馈通腔。 光纤或类似的波导通过轴向细长的光学馈通腔被接收，并且相对于环形表面径向向内间隔开，从而在光纤和环形表面之间限定了一个轴向细长的环形腔。 环氧粘合剂在其液相中引入环形空腔的一端，并允许通过毛细管作用填充环形空腔。 在填充环形空腔时，环氧树脂硬化和固化，并进而将光纤粘合地固定在管状构件内。 环形表面在环形空腔中限定多个收缩部，以进一步将固体环氧树脂塞固定在空腔内，并且防止塞子响应于在高压和/或高温应用中遇到的轴向力而移动。

公开(公告)号：US09062682B2

公开(公告)日：2015-06-23

申请号：US12992927

申请日：2009-05-20

申请人： Douglas H. Loose ,  Christian Victor O'Keefe ,  Robert J. Maron ,  Joseph L. Poplawski ,  Michael A. Davis ,  Mark R. Fernald ,  Timothy J. Bailey

发明人： Douglas H. Loose ,  Christian Victor O'Keefe ,  Robert J. Maron ,  Joseph L. Poplawski ,  Michael A. Davis ,  Mark R. Fernald ,  Timothy J. Bailey

IPC分类号： G06F19/00 ,  G01N29/14 ,  F04D15/00 ,  G01H1/00

CPC分类号： F04D15/0088 ,  G01H1/00 ,  G01N29/14

摘要： The present invention provides a processor or signal processing module that features one or more modules configured to receive an input signal containing information about the unsteady pressures or acoustic emissions caused by a medium flowing through a pump, and also configured to provide of an output signal containing information about the performance of the pump. The information about the performance of the pump may include information about pump performance monitoring by a slip flow measurement, about predicting impeller wear, about pump impeller cavitation monitoring, about pump monitoring through acoustic emissions, about pump leak detection, about pump efficiency monitoring and about positive displacement pump monitoring.

摘要翻译： 本发明提供了一种处理器或信号处理模块，其特征在于一个或多个模块，其被配置为接收包含由流经泵的介质引起的不稳定压力或声发射的信息的输入信号，并且还被配置为提供包含 有关泵的性能的信息。 关于泵的性能的信息可以包括关于通过滑流测量的泵性能监测的信息，关于预测叶轮磨损，关于泵叶轮空化监测，关于通过声发射的泵监测，关于泵泄漏检测，关于泵效率监测和关于 正排量泵监测。

公开(公告)号：US20120209550A1

公开(公告)日：2012-08-16

申请号：US13389546

申请日：2010-08-11

申请人： Alex M. Van Der Spek ,  Robert J. Maron ,  Paul Joseph Rothman ,  Christian V. O'Keefe ,  Douglas H. Loose

发明人： Alex M. Van Der Spek ,  Robert J. Maron ,  Paul Joseph Rothman ,  Christian V. O'Keefe ,  Douglas H. Loose

IPC分类号： G06F19/00

CPC分类号： G01F1/7082 ,  B04C5/24 ,  B04C11/00 ,  G01N15/02 ,  G01N15/10 ,  G01N29/036 ,  G01N29/46 ,  G01N2015/0053 ,  G01N2015/1087 ,  G01N2291/02416

摘要： Apparatus, including a signal processor, featuring at least one module configured to respond to signals containing information about sound propagating through a slurry flowing in part, including overflow pipes, of cyclones operating in parallel on a cyclone battery, and determine the performance of individual cyclones based at least partly on the information contained in the signals. The signal process may form part of a non-invasive acoustic-based passive monitoring system, comprising: cyclones and sensors; where the cyclones are configured in parallel to form a cyclone battery in order to process a slurry, each cyclone having an overflow pipe for providing some portion of the slurry flowing in the cyclone battery, where each sensor is configured to mount on a respective overflow pipe of a respective cyclone, to respond to sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone, and to provide a respective signal containing information about the sound propagating through the slurry flowing in the respective overflow pipe of the respective cyclone; and where the signal processor is configured to respond to respective signals from the sensors and determine the performance of individual cyclones based at least partly on the information contained in the respective signals.

摘要翻译： 包括信号处理器的装置具有至少一个模块，其被配置为响应于包含关于通过部分流动的浆料（包括溢流管）传播的声音的信息，所述液体在旋风分离器电池上并联操作的旋风分离器，并且确定各个旋风分离器的性能 至少部分地基于信号中包含的信息。 信号处理可以形成非侵入性声学无源监测系统的一部分，包括：旋风分离器和传感器; 其中旋风分离器被构造成平行以形成旋风电池以便处理浆料，每个旋风分离器具有溢流管，用于提供在旋流器电池中流动的一部分浆料，其中每个传感器构造成安装在相应的溢流管 以响应通过在相应旋风分离器的相应溢流管中流动的浆料传播的声音，并且提供包含关于通过在相应旋风分离器的相应溢流管中流动的浆料传播的声音的信息的相应信号; 并且其中信号处理器被配置为响应来自传感器的相应信号，并且至少部分地基于包含在相应信号中的信息来确定各个旋风器的性能。

公开(公告)号：US06507693B2

公开(公告)日：2003-01-14

申请号：US09872855

申请日：2001-06-01

申请人： Robert J. Maron ,  Guy A. Daigle ,  James R. Dunphy ,  Thomas W. Engel ,  John J. Grunbeck ,  Mark R. Fernald

发明人： Robert J. Maron ,  Guy A. Daigle ,  James R. Dunphy ,  Thomas W. Engel ,  John J. Grunbeck ,  Mark R. Fernald

IPC分类号： G02B600

CPC分类号： G01L9/0039 ,  G01L9/0077 ,  G01L11/025 ,  G02B6/02052 ,  G02B6/2552 ,  G02B6/3644 ,  G02B6/3854 ,  G02B6/3861

摘要： A method and device for tuning an optical device including an optical fiber having a core, a cladding and a Bragg grating imparted in the core to partially reflect an optical signal at a reflection wavelength characteristic of the spacing of the Bragg grating. The cladding has two variation regions located on opposite sides of the Bragg grating to allow attachment mechanisms to be disposed against the optical fiber. The attachment mechanisms are mounted to a frame so as to allow the spacing of the Bragg grating to be changed by an actuator which tunes the reflection wavelength. In particular, the variation region has a diameter different from the cladding diameter, and the attachment mechanism comprises a ferrule including a front portion having a profile substantially corresponding to diameter of the variation region and a butting mechanism butting the ferrule against the optical fiber.

公开(公告)号：US06439055B1

公开(公告)日：2002-08-27

申请号：US09440555

申请日：1999-11-15

申请人： Robert J. Maron ,  George J. Talmadge ,  Bradley A. Currier ,  Christopher T. Chipman ,  Guy Daigle ,  Richard M. Niezgorski ,  Peter Gumprecht

发明人： Robert J. Maron ,  George J. Talmadge ,  Bradley A. Currier ,  Christopher T. Chipman ,  Guy Daigle ,  Richard M. Niezgorski ,  Peter Gumprecht

IPC分类号： G01L900

CPC分类号： G01L9/06 ,  E21B47/011 ,  E21B47/06 ,  E21B47/123 ,  G01L11/025

摘要： A pressure sensor assembly for determining the pressure of a fluid in a harsh environment includes a pressure sensor suspended within a fluid filled housing. The assembly includes a pressure transmitting device which transmits the pressure of the fluid to sensor and maintains the fluid within the housing in a void free condition. The pressure sensor assembly maintains the sensor in a near zero base strain condition and further protects the sensor from shock and vibration. The pressure sensor assembly further includes bumpers that limit the movement of the sensor within the housing.

摘要翻译： 用于确定在恶劣环境中的流体的压力的压力传感器组件包括悬挂在流体填充的壳体内的压力传感器。 组件包括压力传递装置，其将流体的压力传递到传感器并将流体保持在壳体内的无空隙状态。 压力传感器组件将传感器保持在接近零的基本应变状态，并进一步保护传感器免受冲击和振动。 压力传感器组件还包括限制传感器在壳体内的运动的缓冲器。

公开(公告)号：US06252656B1

公开(公告)日：2001-06-26

申请号：US09145624

申请日：1998-09-02

申请人： Jian-Qun Wu ,  Alan D. Kersey ,  Robert J. Maron

发明人： Jian-Qun Wu ,  Alan D. Kersey ,  Robert J. Maron

IPC分类号： G01N2100

CPC分类号： G01V1/22 ,  G01D5/35312 ,  G08C23/06

摘要： The present invention provides a seismic sensing system having at least one sensor, transducer, optical source and detection unit, optical fiber and measurement unit. The sensor responds to a seismic disturbance, for providing a sensor signal containing information about the seismic disturbance. The sensor may be a geophone that detects vibrations passing though rocks, soil etc, and provides an electrical voltage sensor signal. The transducer responds to the sensor signal, for providing a transducer force containing information about the sensor signal. The transducer may be a piezoelectric, magnetostrictive or electrostrictive transducer. The optical source provides an optical signal through the fiber. The optical fiber responds to the transducer force, changes an optical parameter or characteristic of the optical signal depending on the change in length of the optical fiber, for providing a transduced optical signal containing information about the transducer force. The optical fiber may have one or more fiber Bragg Gratings therein arranged in relation to the transducer. The measurement unit responds to the transduced optical signal, for providing a measurement unit signal containing information about the seismic disturbance.

摘要翻译： 本发明提供一种具有至少一个传感器，换能器，光源和检测单元，光纤和测量单元的地震检测系统。 传感器响应地震干扰，提供包含有关地震干扰信息的传感器信号。 传感器可以是检测通过岩石，土壤等的振动的地震检波器，并提供电压传感器信号。 传感器响应传感器信号，用于提供包含有关传感器信号的信息的传感器力。 换能器可以是压电，磁致伸缩或电致伸缩换能器。 光源通过光纤提供光信号。 光纤响应于传感器的力，根据光纤的长度变化来改变光学信号的光学参数或特性，以提供包含关于换能器力的信息的转换光学信号。 光纤可以在其中相对于换能器布置有一个或多个光纤布拉格光栅。 测量单元响应于转换的光信号，用于提供包含有关地震干扰的信息的测量单元信号。

公开(公告)号：US5892860A

公开(公告)日：1999-04-06

申请号：US786704

申请日：1997-01-21

申请人： Robert J. Maron ,  Alan D. Kersey

发明人： Robert J. Maron ,  Alan D. Kersey

IPC分类号： G01D5/353 ,  G01K5/52 ,  G01P15/093 ,  G02B6/00

CPC分类号： G01L11/02 ,  G01D5/35383 ,  G01K5/52 ,  G01P15/093

摘要： A sensor capable of measuring a number of physical parameters in a harsh environment includes a plurality of intrinsic fiber optic sensor elements formed within a core of an optical fiber, the optical fiber being disposed within a capillary tube made of a high strength, corrosion resistant material. The sensor is located at a distal end of the capillary tube, and the capillary tube is mounted in a monitoring location, such as mounted to the casing of an electrically submersible pump (ESP), such that the sensor can be utilized to measure physical parameters, including static and dynamic pressure, temperature, acceleration and acoustic signals, at the monitoring location. Each sensor is constructed such that a reference element, such as a rigid element, isolates a reference location in the optical fiber from mechanically induced strain. A Bragg grating sensing element is positioned with respect to the reference element, and responsive to an optical signal and to a strain associated with a respective measurand field for providing an optical sensing signal related to a magnitude of the respective measurand field.

摘要翻译： 能够在恶劣环境下测量物理参数的传感器包括形成在光纤芯中的多个本征光纤传感器元件，该光纤设置在由高强度耐腐蚀材料制成的毛细管内 。 传感器位于毛细管的远端，并且毛细管安装在监测位置，例如安装在电潜泵（ESP）的壳体上，使得传感器可用于测量物理参数 ，包括静态和动态压力，温度，加速度和声学信号。 每个传感器被构造成使得诸如刚性元件的参考元件将光纤中的参考位置与机械感应应变隔离开。 布拉格光栅感测元件相对于参考元件定位，并且响应于光学信号和与相应被测场相关联的应变，以提供与相应被测场的幅度相关的光学感测信号。

公开(公告)号：US5877426A

公开(公告)日：1999-03-02

申请号：US883858

申请日：1997-06-27

申请人： Arthur D. Hay ,  Robert J. Maron ,  James R. Dunphy ,  Phillip Edmund Pruett

发明人： Arthur D. Hay ,  Robert J. Maron ,  James R. Dunphy ,  Phillip Edmund Pruett

IPC分类号： G01L1/24 ,  G01L7/04 ,  G01L9/00 ,  G01L11/00 ,  G01L19/04

CPC分类号： G01L9/0032 ,  G01L19/0092

摘要： A Bourdon tube pressure gauge is mounted for sensing the pressure of a system. The Bourdon tube is connected to at least one optical strain sensor mounted to be strained by movement of the Bourdon tube such that when the Bourdon tube is exposed to the pressure of the system, movement of the tube in response to system pressure causes a strain in the optical sensor. The optical sensor is responsive to the strain and to an input optical signal for providing a strain optical signal which is directly proportional to the pressure. A reference or temperature compensation optical sensor is isolated from the strain associated with the pressure of the system and is responsive to temperature of the system for causing a temperature-induced strain. The reference optical sensor is responsive to the temperature induced strain and the input optical signal for providing a temperature optical signal which is directly proportional to the temperature of the system. The temperature optical signal is provided for temperature compensation of the strain optical signal. The optical sensors include an optical fiber having intrinsic Bragg grating sensors formed in the optical fiber. The optical fiber is attached to a reference point and to the Bourdon tube such that changes in the position of the tube changes the strain on the optical fiber resulting in a wavelength shift of light reflected by the Bragg grating. The magnitude of the wavelength shift is directly proportional to a change in pressure.

摘要翻译： 安装了波登管压力表，用于感测系统的压力。 布尔登管连接至至少一个光学应变传感器，该光学应变传感器安装成通过波登管的运动而变形，使得当波登管暴露于系统的压力时，管的响应于系统压力的运动导致应变 光学传感器。 光学传感器响应于应变和输入光信号，以提供与压力成正比的应变光信号。 参考或温度补偿光学传感器与与系统压力相关的应变分离，并响应于系统的温度导致温度引起的应变。 参考光学传感器响应于温度感应应变和输入光信号，以提供与系统的温度成正比的温度光信号。 温度光信号用于应变光信号的温度补偿。 光学传感器包括在光纤中形成有本征Bragg光栅传感器的光纤。 光纤连接到参考点和布尔登管，使得管的位置变化改变光纤上的应变，导致由布拉格光栅反射的光的波长偏移。 波长偏移的大小与压力的变化成正比。

公开(公告)号：US5844667A

公开(公告)日：1998-12-01

申请号：US790072

申请日：1997-01-28

申请人： Robert J. Maron

发明人： Robert J. Maron

IPC分类号： G01L9/00 ,  G01B9/02

CPC分类号： G02B6/0218 ,  G01L9/0076 ,  G02B6/022

摘要： A temperature compensated intrinsic optical fiber pressure sensing device includes an intrinsic fiber optic sensor formed in a core of an optical fiber. A diaphragm responsive to a pressure in an environment applies a longitudinal strain in the optical fiber, thereby inducing a pressure stress in the intrinsic fiber optic sensor. The intrinsic fiber optic sensor is responsive to an optical signal and to the pressure stress for providing a sensing light signal indicative of the pressure. A temperature compensation members are responsive to a temperature for applying a longitudinal strain in the optical fiber, thereby inducing a temperature compensation stress in the intrinsic fiber optic sensor indicative of the temperature, wherein changes in the sensing light signal that are attributable to changes in the temperature compensation strain substantially compensates for changes in the sensing light signal attributable to changes in the temperature of the intrinsic fiber optic sensor.

摘要翻译： 温度补偿的本征光纤压力感测装置包括形成在光纤芯中的本征光纤传感器。 响应于环境中的压力的​​隔膜在光纤中施加纵向应变，从而在本征光纤传感器中引起压力应力。 本征光纤传感器响应于光学信号和压力应力，以提供表示压力的感测光信号。 温度补偿部件响应于在光纤中施加纵向应变的温度，从而在本征光纤传感器中引起指示温度的温度补偿应力，其中感测光信号的变化可归因于 温度补偿应变基本上补偿归因于本征光纤传感器的温度变化的感测光信号的变化。