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    Techniques for distributed acoustic sensing
    92.
    发明授权
    Techniques for distributed acoustic sensing 有权
    分布式声学检测技术

    公开(公告)号：US09250112B2

    公开(公告)日：2016-02-02

    申请号：US13981310

    申请日：2012-02-21

    Applicant: Alastair Godfrey

    Inventor： Alastair Godfrey

    IPC: G02B6/00 ,  G01F25/00 ,  G01F1/66 ,  G01H9/00

    CPC classification number: G01F25/0007 ,  G01F1/66 ,  G01F1/661 ,  G01F1/667 ,  G01H9/004

    Abstract: The application describes techniques for monitoring the rate of flow of fluid in a conduit (205) using fiber optic distributed acoustic sensing which are especially applicable to flow in oil and gas wells. The techniques also allow for calibration of the position of the channels of a fiber optic distributed acoustic sensor arranged along a fluid carrying conduit. The techniques comprise introducing a first acoustic stimulus (303) travelling in one direction and a second acoustic stimulus (304) travelling in the opposite direction. Flow of the fluid (v) results in a difference in the propagation velocity of the two acoustic stimuli. The first and second acoustic stimuli create a standing wave and the beat effect due to the flow induced wavelength variation is detected and used to determine flow rate. The acoustic stimulus may be introduced to travel through the conduit to provide the first stimulus and to reflect from the end of the conduit and travel back as the second acoustic stimulus.

    Abstract translation: 该应用描述了使用特别适用于油气井中的流动的光纤分布式声学传感来监测导管（205）中的流体流速的技术。 这些技术还允许校准沿流体承载导管布置的光纤分布式声学传感器的通道的位置。 这些技术包括引入在一个方向上行进的第一声学刺激（303）和沿相反方向行进的第二声学刺激（304）。 流体（v）的流动导致两个声学刺激的传播速度的差异。 第一和第二声学刺激产生驻波，并且检测由于流动感应波长变化引起的节拍效应并用于确定流速。 可以引入声刺激以穿过导管以提供第一刺激并且从导管的端部反射并作为第二声刺激返回。

    METHODS AND APPARATUS FOR FLUID FLOW MEASUREMENT
    93.
    发明申请
    METHODS AND APPARATUS FOR FLUID FLOW MEASUREMENT 有权
    流体流量测量方法与装置

    公开(公告)号：US20150330818A1

    公开(公告)日：2015-11-19

    申请号：US14715226

    申请日：2015-05-18

    Applicant: Soneter, Inc.

    Inventor： Jeffrey L. Leaders ,  Jeffery Dugger

    IPC: G01F1/66

    CPC classification number: G01F1/663 ,  G01F1/66 ,  G01F1/661 ,  G01F1/662 ,  G01F1/667 ,  G01F15/063 ,  G01F15/066 ,  G06F19/00 ,  Y10T29/49826

    Abstract: A fluid flow meter estimates the velocity of water or another fluid flowing through pipe by comparing measurements of the water velocity to one or more pre-determined templates. The fluid flow meter may collect measurement signals from one or more flow sensors, estimate the fluid velocity or flow rate by comparing the measurement signals to the template, and either store the comparison results in local memory, transmit the results to a remote memory or server, or both. In some embodiments, the fluid flow meter transmits the results to a server via a wireless interface. The transducers and processing system can be powered by a battery, a power line, or, for manifolds installed outdoors, a solar cell. Example transducers and processing systems may also have a passive wake-up feature for power reduction; that is, they may only draw power when water or another fluid flows through the pipe.

    Abstract translation: 流体流量计通过将水速测量与一个或多个预定模板进行比较来估计水或流过管道的另一流体的速度。 流体流量计可以从一个或多个流量传感器收集测量信号，通过将测量信号与模板进行比较来估计流体速度或流速，并将比较结果存储在本地存储器中，将结果传送到远程存储器或服务器 ， 或两者。 在一些实施例中，流体流量计经由无线接口将结果发送到服务器。 传感器和处理系统可以由电池，电力线或者用于安装在室外的多个歧管，太阳能电池供电。 示例传感器和处理系统还可以具有用于功率降低的被动唤醒功能; 也就是说，当水或另一种流体流过管道时，它们只能吸取能量。

    METHODS AND APPARATUS TO DETERMINE AIRFLOW CONDITIONS AT AN INLET OF AN ENGINE
    94.
    发明申请
    METHODS AND APPARATUS TO DETERMINE AIRFLOW CONDITIONS AT AN INLET OF AN ENGINE 有权
    在发动机入口处确定气流条件的方法和装置

    公开(公告)号：US20150330310A1

    公开(公告)日：2015-11-19

    申请号：US14276091

    申请日：2014-05-13

    Applicant: The Boeing Company

    Inventor： John Russell deGaribody

    IPC: F02C9/26 ,  G01S17/02 ,  G01S17/88 ,  G01F1/76

    CPC classification number: G01F1/661 ,  F02C7/04 ,  F02C9/26 ,  F05D2270/3061 ,  F05D2270/804 ,  G01F1/76 ,  G01F1/86 ,  G01F15/043 ,  G01S17/02 ,  G01S17/58 ,  G01S17/88

    Abstract: Methods and apparatus to determine airflow conditions at an inlet of an engine are disclosed herein. An example apparatus disclosed herein includes a sensor disposed at an inlet of an engine to measure a pressure characteristic, a temperature characteristic and a velocity characteristic of an airflow moving through the inlet and a processor to determine an air mass flow rate based on the pressure characteristic, the temperature characteristic and the velocity characteristic measured at the engine inlet.

    Abstract translation: 在此公开了用于确定发动机入口处的气流状况的方法和装置。 本文公开的示例性装置包括设置在发动机入口处的传感器，以测量通过入口移动的气流的压力特性，温度特性和速度特性，以及处理器，以基于压力特性确定空气质量流量 ，在发动机入口处测量的温度特性和速度特性。

    METHOD FOR DETERMINING THE SPEED OF A ROTOCRAFT RELATIVE TO THE SURROUNDING AIR
    95.
    发明申请
    METHOD FOR DETERMINING THE SPEED OF A ROTOCRAFT RELATIVE TO THE SURROUNDING AIR 审中-公开
    确定与周边空气相关的ROTOCRAFT速度的方法

    公开(公告)号：US20150323559A1

    公开(公告)日：2015-11-12

    申请号：US14652770

    申请日：2013-12-20

    Applicant: THALES

    Inventor： Philippe Rondeau ,  Jean-Pierre Schlotterbeck ,  Xavier Lacondemine

    IPC: G01P5/26 ,  G01F1/66 ,  G01S17/88 ,  B64D43/02

    CPC classification number: G01P5/26 ,  B64D43/02 ,  G01F1/661 ,  G01S17/58 ,  G01S17/88 ,  G01S17/95 ,  Y02A90/19

    Abstract: A method for determining the speed vector ({right arrow over (Vd)}), with respect to the surrounding air, of a rotary wing aircraft (HL) equipped with a beam scanning Doppler laser anemometry device for measuring (Step1) a set of projections (Vm) of said speed vector ({right arrow over (Vd)}) in at least four non-coplanar directions, comprising the following steps: detecting (Step2) any anomaly of at least one element from the set of measured projections (Vm), from a comparison with respect to a first threshold (S1), of a deviation between the measurements (Vm) and the measurements (Vp) predicted from a predetermined model depending on values of beam scanning parameters of the anemometry device; and reducing (Step3) the effect of a detected anomaly by invalidating measurements corresponding to said anomaly and computing the components of the speed vector from valid measurements.

    Abstract translation: 一种用于测量装备有用于测量（1）的波束扫描多普勒激光测风装置的旋翼飞机（HL）的相对于周围空气的速度矢量（{右箭头（Vd）}）的方法 包括以下步骤：检测（步骤2）从所测量的投影组中的至少一个元素的任何异常（步骤2），所述速度矢量的投影（Vm）（{右箭头（Vd）}）在至少四个非共面方向上 根据与风速测量装置的波束扫描参数的值相对于从预定模型预测的测量值（Vm）和测量值（Vp）之间的偏差相对于第一阈值（S1）的比较; 并且通过使与所述异常相对应的测量值无效并且从有效测量计算速度矢量的分量来减少（步骤3）检测到的异常的影响。

    OPTICAL SENSOR AND METHOD OF USE
    96.
    发明申请
    OPTICAL SENSOR AND METHOD OF USE 审中-公开
    光传感器及其使用方法

    公开(公告)号：US20150192436A1

    公开(公告)日：2015-07-09

    申请号：US14662940

    申请日：2015-03-19

    Applicant: Silixa Ltd.

    Inventor： Mahmoud Farhadiroushan ,  Tom Richard Parker ,  Sergey Shatalin

    IPC: G01D5/353 ,  G01M11/00

    CPC classification number: G01H9/004 ,  E21B47/0002 ,  E21B47/101 ,  G01D5/35303 ,  G01D5/35306 ,  G01D5/35325 ,  G01D5/35335 ,  G01D5/35358 ,  G01D5/35364 ,  G01D5/35377 ,  G01D5/35383 ,  G01F1/66 ,  G01F1/661 ,  G01M11/331 ,  G01V1/40

    Abstract: An interferometer apparatus for an optical fibre system and method of use is described. The interferometer comprises an optical coupler and optical fibres which define first and second optical paths. Light propagating in the first and second optical paths is reflected back to the optical coupler to generate an interference signal. First, second and third interference signal components are directed towards respective first, second and third photodetectors. The third photodetector is connected to the coupler via a non-reciprocal optical device and is configured to measure the intensity of the third interference signal component directed back towards the input fibre. Methods of use in applications to monitoring acoustic perturbations and a calibration method are described.

    Abstract translation: 描述了一种用于光纤系统的干涉仪装置及其使用方法。 干涉仪包括光耦合器和限定第一和第二光路的光纤。 在第一和第二光路中传播的光被反射回到光耦合器以产生干涉信号。 首先，第二和第三干扰信号分量指向相应的第一，第二和第三光电探测器。 第三光电检测器通过不可逆的光学装置连接到耦合器，并且被配置成测量指向输入光纤的第三干涉信号分量的强度。 描述了用于监测声学扰动的应用的方法和校准方法。

    Fluid flow monitor
    97.
    发明授权
    Fluid flow monitor 有权
    流体流量监测仪

    公开(公告)号：US08997585B2

    公开(公告)日：2015-04-07

    申请号：US13699450

    申请日：2011-05-24

    Applicant: Peter Hayward

    Inventor： Peter Hayward

    IPC: G01D5/353 ,  E21B47/12 ,  G01F1/66

    CPC classification number: G01D5/353 ,  E21B47/123 ,  G01D5/35361 ,  G01F1/661 ,  G01F1/666

    Abstract: There are disclosed methods and apparatus for monitoring fluid flow along a conduit such as a well bore or a pipeline. A sensor optical fiber is disposed along the conduit, and an optical interrogator is used to launch probe light pulses into the fiber and to determine optical properties of probe light backscattered within the fiber, the properties being indicative of vibration as a function along the fiber. An analyzer is used to detect one or more vibration features moving along the conduit and to determine a measure of fluid flow based on the detected movement.

    Abstract translation: 公开了用于监测诸如井眼或管道的导管的流体流动的方法和装置。 传感器光纤沿着导管设置，并且光​​学询问器用于将探测光脉冲发射到光纤中并且确定在光纤内反向散射的探测光的光学特性，该特性表示沿着光纤的函数的振动。 分析器用于检测沿着导管移动的一个或多个振动特征，并且基于检测到的运动来确定流体流动的量度。

    FLOW IMAGING AND MONITORING FOR SYNCHRONIZED MANAGEMENT OF WIDE AREA DRAINAGE
    98.
    发明申请
    FLOW IMAGING AND MONITORING FOR SYNCHRONIZED MANAGEMENT OF WIDE AREA DRAINAGE 有权
    流域成像和监测用于大面积排水的同步管理

    公开(公告)号：US20150090049A1

    公开(公告)日：2015-04-02

    申请号：US14281757

    申请日：2014-05-19

    Applicant: U.S. Environmental Protection Agency ,  Urbanalta Technology

    Inventor： Ruben KERTESZ ,  Daniel J. MURRAY, JR. ,  MICHAEL BOLAN ,  RYAN ANDERSON

    IPC: G01F1/66 ,  F16M13/02 ,  H01M10/42

    CPC classification number: G01F1/662 ,  E03F7/00 ,  E03F2201/20 ,  E03F2201/40 ,  F16M13/02 ,  G01F1/002 ,  G01F1/66 ,  G01F1/661 ,  G01F1/666 ,  G01F1/704 ,  G01F1/7086 ,  H01M2/1022 ,  H01M10/4257 ,  H01M2010/4271 ,  Y10T137/8158 ,  Y10T137/8359

    Abstract: A flow imaging and monitoring system for synchronized management of wide area drainage that includes an interposer for supporting monitoring and management equipment in a manhole, a module for illuminating water flowing in pipes at the base of the manhole, a module for monitoring responses to reflected light, a sealed and rechargeable battery pack, and a data analysis and management system to interpret data streams in real time. The interposer can be adjusted to fit the diameter of the manhole and can be adjusted to be placed under the manhole cover. The module for illuminating the flowing water can be adjusted to generate various frequencies. The support structures for the modules can be adjusted for varying pitch, roll and yaw with respect to the manhole. The data analysis and management system is supported by cloud computing.

    Abstract translation: 一种用于广域排水同步管理的流量成像和监测系统，包括用于在人孔中支持监测和管理设备的插入件，用于照射在井底的管道中流动的水的模块，用于监测对反射光的响应的模块 ，密封可充电电池组，以及实时解读数据流的数据分析和管理系统。 可以调节插入器以适应人孔的直径，并可以调整放置在人孔盖下方。 用于照亮流水的模块可以调节以产生各种频率。 可以调节模块的支撑结构，以相对于人孔改变俯仰，滚动和偏航。 云计算支持数据分析和管理系统。

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