公开(公告)号：US09404893B2

公开(公告)日：2016-08-02

申请号：US12922261

申请日：2009-03-16

申请人： Christian O'Keefe ,  Robert J. Maron ,  Mark R. Fernald ,  Timothy J. Bailey ,  Alex Van der Spek ,  Michael A. Davis ,  John V. Viega

发明人： Christian O'Keefe ,  Robert J. Maron ,  Mark R. Fernald ,  Timothy J. Bailey ,  Alex Van der Spek ,  Michael A. Davis ,  John V. Viega

IPC分类号： G01N29/24 ,  G01N29/04 ,  G01B17/02

CPC分类号： G01N29/04 ,  G01B17/02 ,  G01N29/2437

摘要： The present invention provides new techniques for non-invasive and real-time measurement of the velocity profile of slurry flow in horizontal pipes, as well as the measurement and trending of pipe wear on slurry lines. In the first case, this information can be used to determine the approach and onset of solid deposition on the bottom of the pipe. Having this information in real time can enable operation at lower velocities or higher solids concentration or both while avoiding solids deposition or plugging and their associated operational costs. In the second case, the present invention uses a permanently or semi-permanently installed ring of conformable ultrasonic transducers clamped onto the outside of the pipe. These transducers are used to measure the thickness of the pipe under their respective locations.

摘要翻译： 本发明提供了用于非侵入式和实时测量水平管道中浆料流速度分布的新技术，以及浆料管线上管道磨损的测量和趋势。 在第一种情况下，该信息可用于确定管道底部固体沉积的方法和开始。 实时获得这些信息可以使运行速度更低，固体浓度更高，同时避免固体沉积或堵塞及其相关的运营成本。 在第二种情况下，本发明使用永久地或半永久地安装的适配超声波换能器的环夹在管的外部。 这些传感器用于测量管道在各自位置下的厚度。

公开(公告)号：US20110056298A1

公开(公告)日：2011-03-10

申请号：US12922261

申请日：2009-03-16

申请人： Christian Victor O'keefe ,  Robert J. Maron ,  Mark R. Fernald ,  Timothy J. Bailey ,  Alex M. Van der Spek ,  Michael A. Davis ,  John V. Viega

发明人： Christian Victor O'keefe ,  Robert J. Maron ,  Mark R. Fernald ,  Timothy J. Bailey ,  Alex M. Van der Spek ,  Michael A. Davis ,  John V. Viega

IPC分类号： G01N29/04

CPC分类号： G01N29/04 ,  G01B17/02 ,  G01N29/2437

摘要： The present invention provides new techniques for non-invasive and real-time measurement of the velocity profile of slurry flow in horizontal pipes, as well as the measurement and trending of pipe wear on slurry lines. In the first case, this information can be used to determine the approach and onset of solid deposition on the bottom of the pipe. Having this information in real time can enable operation at lower velocities or higher solids concentration or both while avoiding solids deposition or plugging and their associated operational costs. In the second case, the present invention uses a permanently or semi-permanently installed ring of conformable ultrasonic transducers clamped onto the outside of the pipe. These transducers are used to measure the thickness of the pipe under their respective locations.

摘要翻译： 本发明提供了用于非侵入式和实时测量水平管道中浆料流速度分布的新技术，以及浆料管线上管道磨损的测量和趋势。 在第一种情况下，该信息可用于确定管道底部固体沉积的方法和开始。 实时获得这些信息可以使运行速度更低，固体浓度更高，同时避免固体沉积或堵塞及其相关的运营成本。 在第二种情况下，本发明使用永久地或半永久地安装的适配超声波换能器的环夹在管的外部。 这些传感器用于测量管道在各自位置下的厚度。

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：US06278811B1

公开(公告)日：2001-08-21

申请号：US09399504

申请日：1999-09-20

申请人： Arthur D. Hay ,  Alan D. Kersey ,  Robert J. Maron ,  Phillip Edmund Pruett ,  Mark R. Fernald ,  Guy A. Daigle ,  F. Kevin Didden ,  Allen R. Davis ,  Michael A. Davis ,  Timothy J. Bailey

发明人： Arthur D. Hay ,  Alan D. Kersey ,  Robert J. Maron ,  Phillip Edmund Pruett ,  Mark R. Fernald ,  Guy A. Daigle ,  F. Kevin Didden ,  Allen R. Davis ,  Michael A. Davis ,  Timothy J. Bailey

IPC分类号： G02B600

CPC分类号： G01L11/025

摘要： A fiber optic Bragg grating pressure sensor particularly suited for measuring ambient pressure of a fluid includes a pressuring detecting device 12 such as a glass element whose elastic deformation is proportional to applied pressure. An optical fiber 28 with an integral first grating 33 is wrapped at least once around the device and has at least a portion of its length fused to the device 12 such that elastic deformation of the device 12 generates a corresponding axial strain in the fiber 28 and/or the grating 33 and thus a corresponding change of the fiber length and/or characteristic reflectance wavelength of the grating 33. A second grating 35 may be formed near the pressure detecting device 12 so as to sense ambient temperature but not be affected by deformation of the device 12 for temperature compensation. Also, the fiber 28 may have more than one grating or be doped at least between a pair of gratings 160,162, to form a fiber laser or a DFB fiber laser which lasing wavelength changes with changing pressure.

摘要翻译： 特别适用于测量流体环境压力的光纤布拉格光栅压力传感器包括加压检测装置12，例如玻璃元件，其弹性变形与施加的压力成比例。 具有集成的第一光栅33的光纤28至少缠绕在设备周围，并且其长度的至少一部分与设备12融合，使得设备12的弹性变形在纤维28中产生相应的轴向应变，并且 /或光栅33，从而光栅33的光纤长度和/或特征反射波长的相应变化。第二光栅35可以形成在压力检测装置12附近，以便感测环境温度但不受变形影响 的温度补偿装置12。 此外，光纤28可以具有多于一个光栅或者至少在一对光栅160,162之间被掺杂，以形成激光波长随着变化的压力而变化的光纤激光器或DFB光纤激光器。

公开(公告)号：US20110118998A1

公开(公告)日：2011-05-19

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 ,  Mike A. Davis ,  Mark R. Fernald ,  Timothy J. Bailey

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

IPC分类号： G06F19/00

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：US06490931B1

公开(公告)日：2002-12-10

申请号：US09399403

申请日：1999-09-20

申请人： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  James R. Dunphy ,  Christopher J. Wright ,  Martin A. Putnam ,  Robert J. Maron ,  Richard T. Jones ,  Guy A. Daigle ,  John J. Grunbeck ,  Alan D. Kersey

发明人： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  James R. Dunphy ,  Christopher J. Wright ,  Martin A. Putnam ,  Robert J. Maron ,  Richard T. Jones ,  Guy A. Daigle ,  John J. Grunbeck ,  Alan D. Kersey

IPC分类号： G01L900

CPC分类号： G01L1/242 ,  G01L11/025

摘要： A fused tension-based fiber grating pressure sensor includes an optical fiber having a Bragg grating impressed therein. The fiber is fused to tubes on opposite sides of the grating and an outer tube is fused to the tubes to form a chamber. The tubes and fiber may be made of glass. Light is incident on the grating and light is reflected from the grating at a reflection wavelength &lgr;1. The grating is initially placed in tension as the pressure P increases, the tension on the grating reduced and the reflection wavelength shifts accordingly. A temperature grating may be used to measure temperature and allow for a temperature-corrected pressure measurement.

摘要翻译： 基于熔融张力的光纤光栅压力传感器包括其中印有布拉格光栅的光纤。 纤维被熔合到光栅的相对侧上的管，并且外管与管融合以形成室。 管和纤维可以由玻璃制成。 光入射到光栅上，光以反射波长lambd1从光栅反射。 当压力P增加时，光栅最初处于张力状态，光栅上的张力减小，反射波长相应地移动。 温度光栅可用于测量温度并允许进行温度校正的压力测量。

公开(公告)号：US20130192351A1

公开(公告)日：2013-08-01

申请号：US13583062

申请日：2011-03-09

申请人： Mark R. Fernald ,  Timothy J. Bailey ,  Douglas H. Loose ,  James M. Sullivan ,  John Biesak ,  Alan D. Kersey ,  Michael A. Davis

发明人： Mark R. Fernald ,  Timothy J. Bailey ,  Douglas H. Loose ,  James M. Sullivan ,  John Biesak ,  Alan D. Kersey ,  Michael A. Davis

IPC分类号： G01N29/02

CPC分类号： G01N29/02 ,  B03D1/028 ,  G01F1/7082 ,  G01F1/712 ,  G01F1/74 ,  G01L11/04 ,  G01N29/024 ,  G01N2291/011 ,  G01N2291/02433

摘要： The invention provides a signal processor that receives a signal containing information about an acoustic signal that is generated by at least one acoustic transmitter, that travels through an aerated fluid in a container, and that is received by at least one acoustic receiver arranged in relation to the container, including inside the container; and determines the gas volume fraction of the aerated fluid based at least partly on the speed of sound measurement of the acoustic signal that travels through the aerated fluid in the container. The signal processor also sends an output signal containing information about the gas volume fraction of the aerated fluid. The signal processor may be configured together with at least one acoustic transmitter, the at least one acoustic receiver, or both.

摘要翻译： 本发明提供了一种信号处理器，其接收包含由至少一个声发射器产生的声信号的信号，所述信号传播通过容器中的充气流体，并且由至少一个声接收器接收，所述至少一个声接收器相对于 容器，包括在容器内; 并且至少部分地基于穿过容器中的充气流体的声信号的声音测量速度来确定充气流体的气体体积分数。 信号处理器还发送包含关于充气流体的气体体积分数的信息的输出信号。 信号处理器可以与至少一个声发射器，至少一个声接收器或两者配置。

公开(公告)号：US06519388B1

公开(公告)日：2003-02-11

申请号：US09455865

申请日：1999-12-06

申请人： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  Michael A. Davis ,  Peter Ogle ,  Alan D. Kersey ,  Martin A. Putnam ,  Robert N. Brucato ,  Paul E. Sanders

发明人： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  Michael A. Davis ,  Peter Ogle ,  Alan D. Kersey ,  Martin A. Putnam ,  Robert N. Brucato ,  Paul E. Sanders

IPC分类号： G02B634

CPC分类号： G02B6/022 ,  G02B6/0218

摘要： A tube-encased fiber grating includes an optical fiber 10 having at least one Bragg grating 12 impressed therein which is embedded within a glass capillary tube 20. Light 14 is incident on the grating 12 and light 16 is reflected at a reflection wavelength &lgr;1. The shape of the tube 20 may be other geometries (e.g., a “dogbone” shape) and/or more than one concentric tube may be used or more than one grating or pair of gratings may be used. The fiber 10 may be doped at least between a pair of gratings 150,152, encased in the tube 20 to form a tube-encased compression-tuned fiber laser or the grating 12 or gratings 150,152 may be constructed as a tunable DFB fiber laser encased in the tube 20. Also, the tube 20 may have an inner region 22 which is tapered away from the fiber 10 to provide strain relief for the fiber 10, or the tube 20 may have tapered (or fluted) sections 27 which have an outer geometry that decreases down to the fiber 10 and provides added fiber pull strength. Also, the tube-encased grating 12 exhibits lower mode coupling from the fiber core to the cladding modes due to the increased diameter of the cladding where the tube 20 is fused to the fiber 10 where the grating is located 12.

摘要翻译： 管状光纤光栅包括光纤10，其具有嵌入其中的至少一个布拉格光栅12，该布拉格光栅12嵌入玻璃毛细管20内。光14入射到光栅12上，光16以反射波长lambd1反射。 管20的形状可以是其他几何形状（例如，“狗骨”形状）和/或可以使用多于一个的同心管，或者可以使用多于一个的光栅或一对光栅。 纤维10可以至少掺杂在一对光栅150,152之间，封装在管20中以形成管封装的压缩调谐光纤激光器，或者光栅12或光栅150,152可被构造为包含在该光纤12中的可调DFB光纤激光器。 管20也可以具有内部区域22，该内部区域22远离纤维10逐渐变细，以为纤维10提供应变消除，或者管20可以具有锥形（或凹槽）部分27，其具有外部几何形状 降低到纤维10并提供增加的纤维拉伸强度。 此外，由于包层的直径增加，管20被熔合到光栅位于12处的光纤10，管状光栅12表现出从纤维芯到包层模式的较低模式耦合。

公开(公告)号：US07882750B2

公开(公告)日：2011-02-08

申请号：US11890322

申请日：2007-08-06

申请人： Michael A. Davis ,  Mark R. Fernald ,  Timothy J. Bailey

发明人： Michael A. Davis ,  Mark R. Fernald ,  Timothy J. Bailey

IPC分类号： G01F1/20

CPC分类号： G01F1/7082

摘要： An apparatus for measuring at least one parameter associated with a fluid flowing within a pipe includes a single sheet of piezoelectric film material wrapped around at least a portion of the pipe and an array of sensors disposed at different locations on the film material. Each of the sensors provides a signal indicative of pressure within the pipe at a corresponding axial and/or circumferential location of the pipe. The sensors are selectively configurable to provide the pressure signals. The signals are processed to determine the parameter. The array of sensors is configurable in response to different criteria. The criteria includes at least one of the parameter of the fluid to be output, an input signal specifying sensors to be selected, a predetermined configuration based on the parameter to be determined, and in response to a previously determined parameter of the fluid.

摘要翻译： 用于测量与在管道内流动的流体相关联的至少一个参数的装置包括缠绕在管的至少一部分上的单片压电膜材料和设置在膜材料上的不同位置的传感器阵列。 每个传感器提供在管道的相应轴向和/或周向位置处指示管内的压力的信号。 传感器可选择性地配置以提供压力信号。 处理信号以确定参数。 传感器阵列可根据不同的标准进行配置。 标准包括要输出的流体的参数，要选择的传感器的输入信号，基于要确定的参数的预定配置以及响应于先前确定的流体参数的至少一个。

公开(公告)号：US06363089B1

公开(公告)日：2002-03-26

申请号：US09691997

申请日：2000-10-19

申请人： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  Michael A. Davis ,  Robert N. Brucato ,  Martin A. Putnam ,  Alan D. Kersey ,  Paul E. Sanders

发明人： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  Michael A. Davis ,  Robert N. Brucato ,  Martin A. Putnam ,  Alan D. Kersey ,  Paul E. Sanders

IPC分类号： H01S310

CPC分类号： G02F1/0115 ,  G02B6/0218 ,  G02B6/022 ,  G02F1/0128 ,  G02F2201/307

摘要： A compression-tuned bragg grating includes a tunable optical element 20,600 which includes either an optical fiber 10 having at least one Bragg grating 12 impressed therein encased within and fused to at least a portion of a glass capillary tube 20or a large diameter waveguide grating 600 having a core and a wide cladding. Light 14 is incident on the grating 12 and light 16 is reflected at a reflection wavelength &lgr;1. The tunable element 20,600 is axially compressed which causes a shift in the reflection wavelength of the grating 12 without buckling the element. The shape of the element may be other geometries (e.g., a “dogbone” shape) and/or more than one grating or pair of gratings may be used and more than one fiber 10 or core 612 may be used. At least a portion of the element may be doped between a pair of gratings 150,152, to form a compression-tuned laser or the grating 12 or gratings 150,152 may be constructed as a tunable DFB laser. Also, the element 20 may have an inner tapered region 22 or tapered (or fluted) sections 27. The compression may be done by a PZT, stepper motor or other actuator or fluid pressure.

摘要翻译： 压缩调谐布拉格光栅包括可调谐光学元件20,600，其包括光纤10，其具有印刷在其中的至少一个布拉格光栅12，该光纤10被封装在玻璃毛细管20或大直径波导光栅600的至少一部分中并且熔合到其中， 一个核心和宽广的包层。 光14入射到光栅12上，光16以反射波长lambd1反射。 可调谐元件20,600被轴向压缩，这导致光栅12的反射波长的偏移而不使元件弯曲。 元件的形状可以是其他几何形状（例如，“狗骨”形状）和/或可以使用多于一个的光栅或一对光栅，并且可以使用多于一个的光纤10或核612。 元件的至少一部分可以掺杂在一对光栅150,152之间，以形成压缩调谐的激光器，或者光栅12或光栅150,152可被构造为可调DFB激光器。 此外，元件20可以具有内锥形区域22或锥形（或凹槽）部分27.压缩可以由PZT，步进电动机或其他致动器或流体压力来实现。