公开(公告)号：US20190113369A1

公开(公告)日：2019-04-18

申请号：US16086832

申请日：2017-02-17

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Michihito MATSUMOTO ,  Kazushi SEKINE ,  Ichiya TAKAHASHI

IPC分类号： G01D5/353 ,  G01F23/00 ,  G01N21/41 ,  G02B6/02

CPC分类号： G01D5/353 ,  G01D5/35316 ,  G01D5/35377 ,  G01F23/00 ,  G01L1/246 ,  G01N21/41 ,  G01N21/7743 ,  G02B6/00 ,  G02B6/02 ,  H01F5/06 ,  H01F27/402 ,  H01F41/127 ,  H02K3/30 ,  H02K15/12

摘要： A resin impregnation detection device configured to detect resin impregnation in a resin impregnation process for a coil insulation layer. The resin impregnation detection device can be inserted in a narrow portion, is capable of detecting impregnation with a liquid resin, and does not leave metal foreign materials other than an optical fiber in a product even after the resin impregnation. The resin impregnation detection device includes an optical fiber including an FBG sensor, and a coating resin, which coats the FBG sensor. The coating resin includes a resin to be softened by contact with a detection target resin. The FBG sensor is applied with a compressive strain caused by cure shrinkage of the coating resin or heat shrinkage thereof from a curing temperature to a normal temperature.

公开(公告)号：US20180031414A1

公开(公告)日：2018-02-01

申请号：US15727389

申请日：2017-10-06

申请人： Silixa Limited

发明人： Mahmoud Farhadiroushan ,  Tom Richard Parker ,  Sergey Shatalin

IPC分类号： G01H9/00 ,  G01M11/00 ,  G01F1/66 ,  E21B47/10 ,  G01V1/40 ,  G01D5/353 ,  E21B47/00

CPC分类号： 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

摘要： Apparatus and methods for fast quantitative measurement of perturbation of optical fields transmitted, reflected and/or scattered along a length of an optical fibre can be used for point sensors as well as distributed sensors or the combination of both. In particular, this technique can be applied to distributed sensors while extending dramatically the speed and sensitivity to allow the detection of acoustic perturbations anywhere along a length of an optical fibre while achieving fine spatial resolution. Advantages of this technique include a broad range of acoustic sensing and imaging applications. Typical uses are for monitoring oil and gas wells such as for distributed flow metering and/or imaging, seismic imaging, monitoring long cables and pipelines, imaging within large vessel as well as for security applications.

公开(公告)号：US20170082484A1

公开(公告)日：2017-03-23

申请号：US15368954

申请日：2016-12-05

申请人： Silixa Ltd.

发明人： Mahmoud Farhadiroushan ,  Tom Richard Parker ,  Sergey Shatalin

IPC分类号： G01H9/00 ,  G01V1/40 ,  G01D5/353

CPC分类号： 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

摘要： The present invention provides novel apparatus and methods for fast quantitative measurement of perturbation of optical fields transmitted, reflected and/or scattered along a length of an optical fibre. The present invention can be used for point sensors as well as distributed sensors or the combination of both. in particular this technique can be applied to distributed sensors while extending dramatically the speed and sensitivity to allow the detection of acoustic perturbations anywhere along a length of an optical fibre while achieving fine spatial resolution. The present invention offers unique advantages in a broad range of acoustic sensing and imaging applications. Typical uses are for monitoring oil and gas wells such as for distributed flow metering and/or imaging, seismic imaging, monitoring long cables and pipelines, imaging within large vessel as well as for security applications.

公开(公告)号：US09255822B2

公开(公告)日：2016-02-09

申请号：US14169760

申请日：2014-01-31

申请人： Carl W. Stoesz ,  Brooks A. Childers

发明人： Carl W. Stoesz ,  Brooks A. Childers

IPC分类号： G02B6/00 ,  G01D5/353 ,  G01L1/24 ,  B32B37/12 ,  B32B37/14 ,  C09J7/02 ,  C09J163/00 ,  C09J7/04

CPC分类号： G01D5/35374 ,  B32B37/1292 ,  B32B37/142 ,  C09J7/20 ,  C09J7/21 ,  C09J163/00 ,  C09J2201/122 ,  C09J2201/28 ,  C09J2400/263 ,  C09J2463/00 ,  G01D5/35377 ,  G01L1/242 ,  G02B6/4407 ,  G02B6/4415 ,  G02B6/443 ,  G02B6/4434 ,  Y10T156/10 ,  Y10T428/24802

摘要： A splicable fiber optic sensing system includes, a core, a sheath surrounding the core, an adhesive disposed between the core and the sheath at some locations and not at other locations, and at least one optical fiber disposed between the core and the sheath being sense transmissively locked to the core by the adhesive at the locations containing the adhesive.

摘要翻译： 一种拼接的光纤传感系统包括：芯，围绕芯的护套，在某些位置处而不在其它位置处设置在芯和护套之间的粘合剂，以及设置在芯和护套之间的至少一根光纤是感觉的 通过粘合剂在包含粘合剂的位置处透射性地锁定到芯部。

公开(公告)号：US09194738B2

公开(公告)日：2015-11-24

申请号：US13263850

申请日：2010-10-22

申请人： James Kengo Andersen ,  Eric Lee Goldner ,  Agop Hygasov Cherbettchian ,  Gerald Robert Baker ,  David T. Beatson

发明人： James Kengo Andersen ,  Eric Lee Goldner ,  Agop Hygasov Cherbettchian ,  Gerald Robert Baker ,  David T. Beatson

IPC分类号： G01B9/02 ,  G01V1/18 ,  G01D5/30 ,  G01H9/00 ,  G02B6/02 ,  G01L1/24 ,  G01D5/353 ,  G01P15/093

CPC分类号： G01D5/35312 ,  G01B9/0201 ,  G01B9/02014 ,  G01B9/02015 ,  G01B9/02027 ,  G01B9/0205 ,  G01D5/35316 ,  G01D5/35377 ,  G01H9/004 ,  G01L1/246 ,  G01P15/093 ,  G01V1/181 ,  G02B6/022

摘要： A fiber optic microseismic sensing system is provided. The system includes a plurality of nodes, each of the nodes including a surface portion, an underground portion, and an optical cable extending between the surface portion and the underground portion. The surface portion includes (1) an optical source for transmitting an optical signal along the optical cable to the underground portion, and (2) an optical receiver for receiving a return optical signal propagating along the optical cable from the underground portion. The underground portion includes at least one transducer, each of the at least one transducer including (1) a fixed portion configured to be secured to a body of interest, (2) a moveable portion having a range of motion with respect to the fixed portion, (3) a spring positioned between the fixed portion and the moveable portion, and (4) a mass engaged with the moveable portion. The optical cable includes a length of fiber wound between the fixed portion and the moveable portion of each of the at least one transducer, the length of fiber spanning the spring. In one disclosed aspect of the transducer, the mass envelopes the moveable portion.

摘要翻译： 提供了光纤微震感测系统。 该系统包括多个节点，每个节点包括表面部分，地下部分和在表面部分和地下部分之间延伸的光缆。 表面部分包括（1）用于将光信号沿着光缆传输到地下部分的光源，以及（2）光接收器，用于接收沿着光缆从地下部分传播的返回光信号。 所述地下部分包括至少一个换能器，所述至少一个换能器中的每一个包括：（1）固定部分，其被配置为固定到感兴趣的身体;（2）可移动部分，其具有相对于所述固定部分的运动范围 ，（3）定位在固定部分和可移动部分之间的弹簧，和（4）与可移动部分接合的质量块。 光缆包括缠绕在固定部分和至少一个换能器中的每一个的可移动部分之间的纤维的长度，纤维的长度跨过弹簧。 在换能器的一个公开的方面中，质量包围可移动部分。

公开(公告)号：US20150300804A1

公开(公告)日：2015-10-22

申请号：US14789537

申请日：2015-07-01

申请人： US Seismic Systems, Inc.

发明人： James Kengo Andersen ,  Eric Lee Goldner ,  Agop Hygasov Cherbettchian ,  Gerald Robert Baker ,  David T. Beatson

IPC分类号： G01B9/02 ,  G01P15/093

CPC分类号： G01D5/35312 ,  G01B9/0201 ,  G01B9/02014 ,  G01B9/02015 ,  G01B9/02027 ,  G01B9/0205 ,  G01D5/35316 ,  G01D5/35377 ,  G01H9/004 ,  G01L1/246 ,  G01P15/093 ,  G01V1/181 ,  G02B6/022

摘要： A fiber optic transducer is provided. The fiber optic transducer includes a fixed portion configured to be secured to a body of interest, a moveable portion having a range of motion with respect to the fixed portion, a spring positioned between the fixed portion and the moveable portion, and a length of fiber wound between the fixed portion and the moveable portion. The length of fiber spans the spring. The fiber optic transducer also includes a mass engaged with the moveable portion. In one disclosed aspect of the transducer, the mass envelopes the moveable portion.

摘要翻译： 提供光纤换能器。 所述光纤换能器包括固定部分，其被固定到感兴趣的主体上，可移动部分具有相对于所述固定部分的运动范围，位于所述固定部分和所述可移动部分之间的弹簧以及一定长度的光纤 缠绕在固定部分和可移动部分之间。 纤维的长度跨越春天。 光纤传感器还包括与可移动部分接合的质量。 在换能器的一个公开的方面中，质量包围可移动部分。

公开(公告)号：US08488114B2

公开(公告)日：2013-07-16

申请号：US12744156

申请日：2007-11-29

申请人： Roberto Gaspari

发明人： Roberto Gaspari

IPC分类号： G01N21/00 ,  G02B6/00 ,  G01R31/00 ,  H04B10/00

CPC分类号： G01K11/3206 ,  G01D5/35367 ,  G01D5/35377 ,  G01D5/3539

摘要： A system for monitoring a plurality of components distributed in different space locations, includes: at least one optical fiber path; an optical radiation source adapted to inject optical radiation into the at least one optical fiber path; at least one first and at least one second optical branches branching from the at least one optical fiber path and adapted to spill respective portions of the optical radiation, the first and second optical branches being adapted to be operatively associated with a respective component to be monitored. The first optical branch includes a first optical reflector and is adapted to reflect the spilled optical radiation portion unless the respective component at least partially breaks; the second optical branch includes at least one passive optical attenuator adapted to be operatively coupled to the respective component to be monitored, and having an attenuation capable of changing in response to a change in operating conditions of the respective monitored component when operatively coupled thereto, and a second optical reflector. An optical receiver is adapted to detect back-reflected optical radiation reflected by the first and second optical branches. The monitoring system is adapted to recognize a position of a component of the plurality of components based on a characteristic of the back-reflected optical radiation.

摘要翻译： 一种用于监视分布在不同空间位置的多个部件的系统，包括：至少一个光纤路径; 光辐射源，其适于将光辐射注入到所述至少一个光纤路径中; 至少一个第一和至少一个第二光学分支从所述至少一个光纤路径分支并且适于溢出所述光学辐射的各个部分，所述第一和第二光学分支适于与待监视的相应组件可操作地相关联 。 第一光学分支包括第一光学反射器，并且适于反射溢出的光学辐射部分，除非相应的部件至少部分地断裂; 所述第二光学分支包括至少一个无源光衰减器，其适于可操作地耦合到待监视的相应组件，并且具有响应于可操作地耦合到所述相应监视组件的操作条件的变化而能够改变的衰减;以及 第二光学反射器。 光接收器适于检测由第一和第二光分支反射的反射反射的光辐射。 监视系统适于基于背反射光辐射的特性来识别多个分量的分量的位置。

公开(公告)号：US20120257209A1

公开(公告)日：2012-10-11

申请号：US13263850

申请日：2010-10-22

申请人： James Kengo Andersen ,  Eric Lee Goldner ,  Agop Hygasov Cherbettchian ,  Gerald Robert Baker ,  David T. Beatson

发明人： James Kengo Andersen ,  Eric Lee Goldner ,  Agop Hygasov Cherbettchian ,  Gerald Robert Baker ,  David T. Beatson

IPC分类号： G01V1/18 ,  G02B6/00

CPC分类号： G01D5/35312 ,  G01B9/0201 ,  G01B9/02014 ,  G01B9/02015 ,  G01B9/02027 ,  G01B9/0205 ,  G01D5/35316 ,  G01D5/35377 ,  G01H9/004 ,  G01L1/246 ,  G01P15/093 ,  G01V1/181 ,  G02B6/022

摘要： A fiber optic microseismic sensing system is provided. The system includes a plurality of nodes, each of the nodes including a surface portion, an underground portion, and an optical cable extending between the surface portion and the underground portion. The surface portion includes (1) an optical source for transmitting an optical signal along the optical cable to the underground portion, and (2) an optical receiver for receiving a return optical signal propagating along the optical cable from the underground portion. The underground portion includes at least one transducer, each of the at least one transducer including (1) a fixed portion configured to be secured to a body of interest, (2) a moveable portion having a range of motion with respect to the fixed portion, (3) a spring positioned between the fixed portion and the moveable portion, and (4) a mass engaged with the moveable portion. The optical cable includes a length of fiber wound between the fixed portion and the moveable portion of each of the at least one transducer, the length of fiber spanning the spring. In one disclosed aspect of the transducer, the mass envelopes the moveable portion.

摘要翻译： 提供了光纤微震感测系统。 该系统包括多个节点，每个节点包括表面部分，地下部分和在表面部分和地下部分之间延伸的光缆。 表面部分包括（1）用于将光信号沿着光缆传输到地下部分的光源，以及（2）光接收器，用于接收沿着光缆从地下部分传播的返回光信号。 所述地下部分包括至少一个换能器，所述至少一个换能器中的每一个包括：（1）固定部分，其被配置为固定在感兴趣的身体上;（2）可移动部分，其具有相对于所述固定部分的运动范围 ，（3）定位在固定部分和可移动部分之间的弹簧，和（4）与可移动部分接合的质量块。 光缆包括缠绕在固定部分和至少一个换能器中的每一个的可移动部分之间的纤维的长度，纤维的长度跨过弹簧。 在换能器的一个公开的方面中，质量包围可移动部分。

公开(公告)号：US07498560B2

公开(公告)日：2009-03-03

申请号：US11856865

申请日：2007-09-18

申请人： Sun-Lyeong Hwang ,  Ki-Chan Kim

发明人： Sun-Lyeong Hwang ,  Ki-Chan Kim

IPC分类号： H01J40/14

CPC分类号： G01D5/35377

摘要： A keypad is provided. The keypad includes an optical waveguide on the top surface of which at least one prism pattern is formed, a light source for generating light and causing the light to be incident to a side surface of the optical waveguide, and at least one optical detector located below the optical waveguide to correspond to the at least one prism pattern.

摘要翻译： 提供键盘。 键盘包括在其顶表面上形成至少一个棱镜图案的光波导，用于产生光并使光入射到光波导的侧表面的光源，以及位于下方的至少一个光学检测器 所述光波导对应于所述至少一个棱镜图案。

公开(公告)号：US20040240769A1

公开(公告)日：2004-12-02

申请号：US10792163

申请日：2004-03-03

发明人： Vasilii V. Spirin ,  Mikhail G. Shlyagin ,  Serguei V. Miridonov ,  Francisco J. Mendieta Jimenez ,  Alfredo Marquez Lucero ,  Enrigue Mitrani Abenchuchan

IPC分类号： G02B006/00

CPC分类号： G01L1/242 ,  G01D5/35345 ,  G01D5/35354 ,  G01D5/35377 ,  G01L1/246 ,  G01M3/047

摘要： This invention pertains to alarm condition fiber optic sensor with storage transmission-reflection analyzer for detection and localization of any number of consecutive loss-inducing disturbances along the test fiber. The sensor includes a test fiber having a first port and a second port; a light source for producing a beam of light propagating along the test fiber; a fiber optic beamsplitter having a first port connected to the light source, a second port connected to the first port of the test fiber, and a third and a fourth port; a plurality of reflectors positioned along the test fiber and a plurality of loss-inducing members positioned along the test fiber, wherein said each of the reflectors is matched to each loss-inducing members, wherein at least one reflector is placed between each consecutive loss-inducing members; an optical reflection detector to receive a light flux, the optical reflection detector connected to the third port of optic beamsplitter, wherein the reflection detector is adapted to sense changes in the average power of the light reflected from the reflectors; an optical transmission detector adapted to receive the light flux, connected to the second port of test fiber, said transmission detector being operable to sense changes in the average power of the light transmitted through the test fiber; and a storage transmission-reflection analyzer connected to reflection and transmission detectors, and adapted to measure time-behavior of the transmission-reflection dependencies of test fiber, said analyzer being operable to identify the locations and values of any number of consecutive loss-inducing disturbances along the test fiber by using stored locations and values of previous perturbations and the slope of dependence of normalized reflected average power versus the square of normalized transmitted average power for current loss-inducing perturbation.

摘要翻译： 本发明涉及具有存储透射反射分析仪的报警条件光纤传感器，用于检测和定位沿着测试光纤的任何数量的连续损耗诱导干扰。 传感器包括具有第一端口和第二端口的测试光纤; 用于产生沿着测试光纤传播的光束的光源; 具有连接到光源的第一端口，连接到测试光纤的第一端口的第二端口以及第三和第四端口的光纤分束器; 沿着测试光纤定位的多个反射器和沿着测试光纤定位的多个损耗感应元件，其中所述每个反射器与每个损耗感应元件匹配，其中至少一个反射器被放置在每个连续的损耗 - 诱导成员; 用于接收光通量的光学反射检测器，所述光学反射检测器连接到光束分离器的第三端口，其中反射检测器适于感测从反射器反射的光的平均功率的变化; 光传输检测器，其适于接收连接到测试光纤的第二端口的光通量，所述传输检测器可操作以感测透过测试光纤的光的平均功率的变化; 以及连接到反射和透射检测器并且适于测量测试光纤的透射反射依赖性的时间行为的存储透射反射分析仪，所述分析器可操作地识别任何数量的连续损耗诱发干扰的位置和值 通过使用存储的先前扰动的位置和值以及归一化的反射平均功率与归一化的传输平均功率的平方的斜率对于电流损耗诱导扰动，沿着测试光纤。