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    SYSTEM AND METHOD FOR TRANMISSIONS USING ELIPTICAL CORE FIBERS
    4.
    发明申请
    SYSTEM AND METHOD FOR TRANMISSIONS USING ELIPTICAL CORE FIBERS 审中-公开

    公开(公告)号：US20170343750A1

    公开(公告)日：2017-11-30

    申请号：US15608609

    申请日：2017-05-30

    申请人： NXGEN PARTNERS IP, LLC

    发明人： SOLYMAN ASHRAFI

    IPC分类号： G02B6/43 ,  H04J14/04 ,  H04J14/02 ,  H04B10/2507 ,  G02B6/26 ,  H04J14/06 ,  G01M11/08

    CPC分类号： G02B6/43 ,  G01M11/085 ,  G02B6/02042 ,  G02B6/024 ,  G02B6/14 ,  G02B6/262 ,  G02B6/2726 ,  G02B6/4246 ,  H04B10/25 ,  H04B10/2507 ,  H04B10/516 ,  H04B10/60 ,  H04J14/02 ,  H04J14/04 ,  H04J14/06

    摘要： A system for transmission of optical data signals has first optical processing circuitry for receiving a plurality of digital signals and applying at least one of a Hermite-Gaussian function, a Laguerre-Gaussian function or an Ince-Gaussian function to each of the received plurality of digital signals. The first optical processing circuitry also combines each of the at least one of the Hermite-Gaussian function, the Laguerre-Gaussian function or the Ince-Gaussian function applied plurality of digital signals into a single carrier signal. An optical transmitter transmits the single carrier signal. An optical receiver receives the transmitted single carrier signal. Second optical processing circuitry separates the at least one of the Hermite-Gaussian function, the Laguerre-Gaussian function or the Ince-Gaussian function applied digital signals of the single carries signal into separate signals and removes the at least one of the Hermite-Gaussian function, the Laguerre-Gaussian function or the Ince-Gaussian function applied to each of the plurality of digital signals. An elliptical core fiber transmits the single carrier signal from the optical transmitter to the optical receiver. The elliptical core fiber includes an elliptical core have a major axis and a minor axis.

    A METHOD AND APPARATUS FOR DETECTING A STRUCTURAL FAULT IN A STRUCTURE
    5.
    发明申请
    A METHOD AND APPARATUS FOR DETECTING A STRUCTURAL FAULT IN A STRUCTURE 审中-公开
    一种用于检测结构中的结构故障的方法和装置

    公开(公告)号：US20170016801A1

    公开(公告)日：2017-01-19

    申请号：US15039493

    申请日：2013-12-02

    申请人： OMNISENS SA

    发明人： Marc Nikles

    IPC分类号： G01M5/00 ,  G01M3/38 ,  G01K11/32 ,  G01L1/24

    CPC分类号： G01M5/0033 ,  G01K11/32 ,  G01K2011/322 ,  G01L1/242 ,  G01M3/38 ,  G01M5/0091 ,  G01M11/085

    摘要： A method for detecting a structural fault in a structure includes the steps of, (a) performing a Brillouin measurement at a point along a sensing optical fiber which operably cooperates with the structure, to obtain a Brillouin gain spectrum at that point; (b) identifying at least two curves which, when added together, best fit the Brillouin gain spectrum; (c) identifying if peaks of the least two curves occur at different frequencies so as to determine if the structure has a structural fault. There is further provided a corresponding apparatus for detecting a structural fault in a structure.

    摘要翻译： 一种用于检测结构中的结构性故障的方法包括以下步骤：（a）在与该结构可操作地协作的感测光纤的点处执行布里渊测量，以在该点获得布里渊增益谱; （b）识别至少两条曲线，当加在一起时，最适合布里渊增益谱; （c）确定最小两条曲线的峰值是否以不同的频率出现，以确定结构是否具有结构性故障。 还提供了用于检测结构中的结构性故障的相应装置。

    SENSOR AND METHOD OF SENSING
    7.
    发明申请
    SENSOR AND METHOD OF SENSING 有权
    传感器和感测方法

    公开(公告)号：US20140152982A1

    公开(公告)日：2014-06-05

    申请号：US14233168

    申请日：2011-07-27

    申请人： Julien Gosteli ,  Fabien Ravet ,  Etienne Rochat

    发明人： Julien Gosteli ,  Fabien Ravet ,  Etienne Rochat

    IPC分类号： G01N21/88

    CPC分类号： G01N21/8806 ,  G01D5/35364 ,  G01L1/242 ,  G01M11/085 ,  G01M11/319 ,  G01M11/39

    摘要： According to the invention, these aims are achieved by means of a sensor, suitable for sensing one or more properties of one or more structures, the sensor comprising, a first optical propagation path which is configurable to cooperate with a structure whose properties are to be sensed; a second optical propagation path which is configurable to cooperate with a structure whose properties are to be sensed; a third optical propagation path; a means for amplifying a signal which propagates in the third optical propagation path, so that the signal is amplified before it begins propagation along the second optical propagation path, and a means to prevent the propagation of signals from the second optical propagation path to the third optical propagation path. There is further provided a corresponding method of sensing.

    摘要翻译： 根据本发明，这些目的通过适于感测一个或多个结构的一个或多个特性的传感器来实现，该传感器包括：第一光学传播路径，其可配置为与其性质将要结合的结构 感觉到 第二光传播路径，其可配置为与要检测其属性的结构协作; 第三光传播路径; 用于放大在第三光传播路径中传播的信号的装置，使得信号在其沿着第二光传播路径开始传播之前被放大，以及用于防止信号从第二光传播路径传播到第三光传播路径的装置 光传播路径。 还提供了相应的感测方法。

    Apparatus and method for detecting pressure signals
    8.
    发明授权
    Apparatus and method for detecting pressure signals 有权
    用于检测压力信号的装置和方法

    公开(公告)号：US08610896B2

    公开(公告)日：2013-12-17

    申请号：US13744380

    申请日：2013-01-17

    申请人： Halliburton Energy Services, Inc

    发明人： Ronald L. Spross ,  Paul F. Rodney ,  Neal G. Skinner ,  James H. Dudley ,  John L. Maida, Jr.

    IPC分类号： G01B9/02 ,  G01L1/24

    CPC分类号： G01B9/02049 ,  E21B47/18 ,  G01L11/025 ,  G01M11/085

    摘要： An apparatus for detecting data in a fluid pressure signal in a conduit comprises an optical fiber loop comprises a measurement section and a delay section wherein the measurement section is disposed substantially circumferentially around at least a portion of the conduit, and wherein the measurement section changes length in response to the fluid pressure signal in the conduit. A light source injects a first optical signal in a first direction into the measurement section and a second optical signal in a second direction opposite the first direction into the delay section. An optical detector senses an interference phase shift between the first optical signal and the second optical signal and outputs a first signal related thereto.

    摘要翻译： 用于检测管道中的流体压力信号中的数据的装置包括光纤回路，包括测量部分和延迟部分，其中所述测量部分基本上沿周向设置在所述导管的至少一部分周围，并且其中所述测量部分改变长度 响应于导管中的流体压力信号。 光源将第一方向的第一光信号注入测量部分，并将与第一方向相反的第二方向的第二光信号注入延迟部分。 光检测器检测第一光信号和第二光信号之间的干涉相移，并输出与之相关的第一信号。

    METHOD AND APPARATUS FOR DISTRIBUTED CLEFT AND LIBERATED TILE DETECTION ACHIEVING FULL COVERAGE OF THE TURBINE COMBUSTION CHAMBER
    9.
    发明申请
    METHOD AND APPARATUS FOR DISTRIBUTED CLEFT AND LIBERATED TILE DETECTION ACHIEVING FULL COVERAGE OF THE TURBINE COMBUSTION CHAMBER 审中-公开
    方法和装置，用于实现涡轮机燃烧室的全面覆盖的分布式和自动检测

    公开(公告)号：US20130008180A1

    公开(公告)日：2013-01-10

    申请号：US13177717

    申请日：2011-07-07

    申请人： Evangelos V. Diatzikis ,  Hans-Gerd Brummel ,  Michael Twerdochlib

    发明人： Evangelos V. Diatzikis ,  Hans-Gerd Brummel ,  Michael Twerdochlib

    IPC分类号： F02C7/00 ,  G01K11/32 ,  G01N21/88

    CPC分类号： F01D21/003 ,  F05D2270/804 ,  F23M11/04 ,  F23R3/002 ,  F23R2900/00019 ,  G01M11/085

    摘要： A component sensing system for monitoring the condition of ceramic tiles in a combustion chamber of a gas turbine engine. The sensing system includes an optical fiber that is mounted to the component being monitored, for example, the ceramic tiles in the gas turbine combustion chamber. The optical fiber can be formed in any suitable orientation or configuration, such as a meandering or serpentine orientation. The fiber is optically coupled to a Brillouin signal analyzer that provides an optical pulse to the sensing section of the fiber and detects Brillouin backscattering from the fiber as the pulse travels along the fiber. The frequency of the Brillouin backscattering signal is monitored relative to the distance along the sensing section of the fiber. A rise in temperature at a location of the fiber shows up in the analyzer as an increase in frequency of the backscattered signal.

    摘要翻译： 一种用于监测燃气涡轮发动机的燃烧室中的瓷砖状态的部件感测系统。 感测系统包括安装到被监测的部件的光纤，例如燃气轮机燃烧室中的陶瓷瓦。 光纤可以以任何合适的取向或构型形成，例如曲折或蛇形取向。 光纤光耦合到布里渊信号分析仪，其向光纤的感测部分提供光脉冲，并且随着脉冲沿着光纤行进，从光纤检测布里渊后向散射。 布里渊后向散射信号的频率相对于沿着光纤的感测部分的距离被监测。 随着反向散射信号频率的增加，光纤位置的温度上升在分析仪中出现。

    Optical fibre sensor array with temperature compensation
    10.
    发明授权
    Optical fibre sensor array with temperature compensation 有权
    具有温度补偿功能的光纤传感器阵列

    公开(公告)号：US08336389B2

    公开(公告)日：2012-12-25

    申请号：US12741043

    申请日：2008-11-03

    申请人： Mark Volanthen ,  Robert Allan Angus

    发明人： Mark Volanthen ,  Robert Allan Angus

    IPC分类号： G01L1/24

    CPC分类号： G01L1/246 ,  G01D5/35316 ,  G01M11/085

    摘要： An optical fiber strain sensor array comprises several sensor support panels spaced in its longitudinal direction and at least one connecting member extending in the longitudinal direction, which mechanically interconnects the sensor support panels. An optical fiber is supported by the sensor support panels and the connecting member. The optical fiber extends with the connecting member between the sensor support panels and forms a curve on the sensor support panel, the curve including at least one portion of the optical fiber that extends in the transverse direction. The width of the connecting member is substantially less than the width of the sensor support panels, such that the connecting member is capable of flexure in the transverse direction. This has the advantage that the connecting member can be flexed to take up any slack during installation of the optical fiber strain sensor array in a wind turbine blade and can be fitted to the turbine blade even if the blade has a conical shape.

    摘要翻译： 光纤应变传感器阵列包括在其纵向方向上隔开的多个传感器支撑面板和至少一个在纵向方向上延伸的连接构件，其将传感器支撑面板机械地互连。 光纤由传感器支撑面板和连接构件支撑。 光纤与传感器支撑面板之间的连接构件一起延伸，并在传感器支撑面板上形成曲线，该曲线包括沿横向方向延伸的至少一部分光纤。 连接构件的宽度基本上小于传感器支撑面板的宽度，使得连接构件能够在横向方向上弯曲。 这具有的优点是，即使在叶片具有圆锥形的情况下，连接构件也可以弯曲以在将光纤应变传感器阵列安装在风力涡轮机叶片中时承受任何松弛，并且可以安装到涡轮机叶片。