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1. 发明公开

EP4375636A3 IMPROVEMENTS IN OR RELATING TO THE MONITORING OF FLUID PIPES 审中-实审
公开(公告)号：EP4375636A3
公开(公告)日：2024-07-24
申请号：EP24162166.3
申请日：2019-02-28
申请人： LWF UK LIMITED
发明人： PARKER, Michael
IPC分类号： G01M3/24 , G01M3/38 , G01M5/00 , G01M11/08
CPC分类号： G01M3/243 , G01M3/38 , G01M5/0025 , G01M5/0033 , G01M5/0091 , G01M5/0066 , G01M11/086 , G01M11/085
摘要： A fluid pipe 1 is monitored using a distributed acoustic sensing (DAS) fibre 10 provided within pipe 1. The DAS fibre 10 is coupled at one end to a light emitter 101 and a light detector 102. The light emitter 101 emits light pulses into the DAS fibre. The light detector 102 detects backscattered light so as to provide an indication of the vibration experienced by each section of the DAS fibre 10 and thus of vibration characteristic of particular pipe events including leaks or the lie. The DAS fibre 10 in a pipe 1 can also be used to locate the route of a buried pipe 1 by successively tamping the ground surface at a number of locations A-E in the vicinity of the suspected route of the pipe 1 and comparing the tamping vibrations detected from each location A-E.

2. 发明授权

EP2899522B1 Optical measurement of fastener preload 有权
公开(公告)号：EP2899522B1
公开(公告)日：2018-09-05
申请号：EP14189467.5
申请日：2014-10-20
申请人： The Boeing Company
发明人： Peltz, Leora , Grip, Robert E. , Brown, John J.
IPC分类号： G01L5/00 , F16B31/02 , G01L5/24 , G02B6/122 , G01L5/16 , G01B11/16 , G01L1/24 , G01M11/08
CPC分类号： B23P19/065 , F16B31/02 , F16B2031/022 , G01B11/18 , G01L1/246 , G01L5/0004 , G01L5/166 , G01L5/24 , G01M11/086 , G01N21/952 , Y10T29/49766
摘要： A fastener comprises a head, and a shank having an outer surface and an axially-extending channel in the outer surface. Optically transmissive, strain-sensitive fills the channel.

3. 发明公开

EP2562529A3 Composite structure having an embedded sensing system 有权
标题翻译： Verbundstruktur mit eingebettetem Messsystem
公开(公告)号：EP2562529A3
公开(公告)日：2015-10-07
申请号：EP12181606.0
申请日：2012-08-23
申请人： The Boeing Company
发明人： Hunt, Jeffrey H. , Belk, John H.
IPC分类号： G01M11/08 , G01B11/16
CPC分类号： G01M11/086 , G01B11/18 , G01N2021/8472
摘要： A composite structure having an embedded sensing system is provided, along with corresponding systems and methods for monitoring the health of a composite structure. The composite structure includes composite material and an optical fiber disposed within the composite material. The optical fiber includes a plurality of quantum dots for enhancing its non-linear optical properties. The quantum dots may be disposed in the core, in the cladding and/or on the surface of the optical fiber. The optical fiber is configured to support propagation of the signals and to be sensitive to a defect within the composite material. The quantum dots create a non-linear effect, such as a second order effect, in response to the defect in the composite material. Based upon the detection and analysis of the signals including the non-linear effect created by the quantum dots, a defect within the composite material may be detected.
摘要翻译：提供具有嵌入式感测系统的复合结构以及用于监测复合结构的健康的相应系统和方法。复合结构包括复合材料和设置在复合材料内的光纤。光纤包括用于增强其非线性光学特性的多个量子点。量子点可以设置在芯中，在光纤的包层和/或表面上。光纤被配置为支持信号的传播并且对复合材料内的缺陷敏感。响应于复合材料中的缺陷，量子点产生非线性效应，例如二阶效应。基于包括由量子点产生的非线性效应的信号的检测和分析，可以检测复合材料内的缺陷。

4. 发明公开

EP2673612A1 MULTIPLEXED OPTICAL FIBER CRACK SENSOR 审中-公开
标题翻译：复用光纤传感器计划
公开(公告)号：EP2673612A1
公开(公告)日：2013-12-18
申请号：EP12708420.0
申请日：2012-02-09
申请人： Siemens Energy, Inc.
发明人： JOHNSTON, Robert T.
IPC分类号： G01M11/08 , G01M5/00 , F01D17/02 , G01N3/56
CPC分类号： G01N21/00 , F01D17/02 , F01D21/003 , F05D2270/804 , G01B11/16 , G01M5/0033 , G01M5/0091 , G01M11/086
摘要： An optical fiber crack detector that includes a plurality of FBG sensors positioned within one or more fibers that are operable to reflect a defined wavelength of an optical input beam. The crack detector includes a light source for generating the optical input beam that propagates down the optical fiber and interacts with the FBG sensors. A wavelength of the optical beam that is reflected by the FBG sensors is detected, and if a crack in the component damages the fiber between an FBG sensor and the detector circuit, where one or more of the reflected signals are not received, the detector knows that a crack has occurred. By strategically placing a plurality of the FBG sensors along the fiber, a crack that damages the fiber in multiple locations between multiple FBG sensors, or in multiple fibers, can provide an indication of the length of the crack.

5. 发明授权

EP2150771B1 DISPOSITIF INTEGRE DE SURVEILLANCE DES DEFORMATIONS D'UNE PIECE ELECTRIQUEMENT ISOLANTE ET PROCEDE DE FABRICATION D'UN TEL DISPOSITIF 有权
标题翻译：集成用于监控电气隔离的元素和方法的变形用于制造这种装置
公开(公告)号：EP2150771B1
公开(公告)日：2013-09-04
申请号：EP08805586.8
申请日：2008-05-19
申请人： Schneider Electric Industries SAS
发明人： OHL, Brigitte , TEYSSIER, Sylvie , AYMAMI, Joan
IPC分类号： G01B11/16 , G01L1/24 , G01D5/353 , G01M11/08 , G01L5/00
CPC分类号： G01B11/16 , G01D5/35316 , G01L1/246 , G01L5/0004 , G01M11/086

6. 发明授权

EP2092228B1 A FLEXIBLE PIPE 有权
标题翻译：柔性管
公开(公告)号：EP2092228B1
公开(公告)日：2011-02-09
申请号：EP07846449.2
申请日：2007-12-17
申请人： NKT Flexibles I/S
发明人： GUDME, Jonas
IPC分类号： F16L11/12 , F16L11/16
CPC分类号： F16L11/12 , F16L11/083 , F16L11/16 , G01M5/0025 , G01M5/0091 , G01M11/086
摘要： The invention relates to a flexible pipe comprising a plurality of layers surrounding a longitudinal axis and an at least partly integrated sensor arrangement. The plurality of layers comprising an internal sheath and one or more armouring layers, at least one armouring layer comprising at least one folded metal strip helically wound around said longitudinal axis of the pipe, at least a part of said sensor arrangement being placed in a fold of said folded metal strip, the sensor arrangement preferably comprises an optical fibre which is placed in the fold of said folded metal strip. By this flexible pipe with a sensor arrangement, the sensor arrangement may be incorporated into the armouring layer in a simple and safe way. The sensor arrangement may for example be capable of sensing at least one property, selected from the group of stress-strain, temperature, pipe leakage, wear, mechanical deformations, pressure, chemical corrosion, salt concentration of liquid in contact with the pipe and pH value of liquid in contact with the pipe.

7. 发明公开

EP2177890A2 Lamelle zur Ertüchtigung und Überwachung von Tragwerken sowie Verfahren zu deren Herstellung und Anwendung. 审中-公开
标题翻译：薄板进行升级和为他们的生产和使用的结构和方法的监控。
公开(公告)号：EP2177890A2
公开(公告)日：2010-04-21
申请号：EP09400050.2
申请日：2009-10-16
申请人： Sächsisches Textilforschungsinstitut e.V.
发明人： Thiele, Elke , Arnold, Rolf , Weigand, Frank , Berthel, Andreas , Schaller, Maria-Barbara , Holschemacher, Klaus , Kuhne, Michael
IPC分类号： G01M11/08
CPC分类号： G01M11/083 , G01M5/0091 , G01M11/086
摘要： Die Erfindung betrifft eine Lamelle aus Hochleistungsfasern, deren Herstellung und Verwendung insbesondere zur Verstärkung und Überwachung von Beton- oder Holztragwerken, die neben der klassischen Dachtragwerkertüchtigung auch ein Monitoring (Überwachung) ermöglicht.
Die Anordnung der optischen Faser auf der Lamelle erfolgt erfindungsgemäß so, dass Anfang und Ende nach freier Führung zur belastungsgerechten Anordnung der optischen Faser auf der Fläche direkt nebeneinander fixiert werden. Die optische Faser wird hierfür auf die Lamelle gestickt. Durch die Art der Steckerpositionierung können mit ein und demselben Messgerät, auch im Falle eines Faserbruches, Messsignale über das jeweils intakte Anschlussstück gewonnen werden.
摘要翻译：薄片（1）具有带有集成光纤布拉格光栅光纤传感器（2），和单独氮化上的高强度的承载织物结构。该传感器被氮化检查做的结构朝向磁力线进行检测的张力，压缩和剪切力和横向以强制进行温度补偿线路运行。织物载体材料的besteht织造，编织，针织或负荷承载高拉伸纤维束：诸如玻璃，碳，芳族聚酰胺和/或玄武岩。开始由侧的纤维（3）和端部（3“）被布置侧的织物表面。因此独立claimsoft包括一种用于制造薄片的方法。

8. 发明公开

EP1869413A1 FIBER BRAGG GRATING SENSOR 审中-公开
标题翻译：光纤布拉格光栅传感器
公开(公告)号：EP1869413A1
公开(公告)日：2007-12-26
申请号：EP06733529.9
申请日：2006-04-05
申请人： Agency for Science, Technology and Research
发明人： HAO, Jianzhong, Institute for Infocomm Research , TAKAHASHI, Shiro, Institute for Infocomm Research , NG, Jun Hong, Institute for Infocomm Research
IPC分类号： G01D5/353 , G01D5/26 , G01L1/24 , G02B6/34
CPC分类号： G01M11/086 , G01D5/35383 , G01L1/246
摘要： An optical fiber strain sensor, a method of fabricating the same, and a method of sensing strain (1200). The method of strain sensing comprises providing an optical fiber having at least a first fiber Bragg grating (FBG) and a second FBG formed therein (1202); subjecting the optical fiber to a strain inducing force such that a grating period in the first FBG compresses and a grating period in the second FBG extends (1204); and optically interrogating the first and second FBG to determine peak reflection wavelengths of the first and second FBGs respectively (1206), whereby a separation between the peak reflection wavelengths of the first and second FBGs is representative of the strain induced.

9. 发明公开

EP1672351A3 Modular sensor for damage detection, manufacturing method and structural composite material 有权
标题翻译：用于损伤检测的模块化传感器，制造方法和结构复合材料
公开(公告)号：EP1672351A3
公开(公告)日：2006-08-16
申请号：EP05112177.0
申请日：2005-12-14
申请人： FUJI JUKOGYO KABUSHIKI KAISHA
发明人： Ogisu, Toshimichi, Fuji Jukogyo Kabushiki Kaisha , Kojima Seiji, Hitachi Cable Ltd.
IPC分类号： G01N21/17 , G01D5/353 , G01B11/16 , G01L1/24 , G01M11/08 , G02B6/36
CPC分类号： G01D5/35303 , G01M11/086 , G01N2021/8472 , G02B6/3644
摘要： A modular sensor (10) for damage detection with an optical fiber (FBG sensor (4)) to detect a damage of a composite material (100), having a high level of visibility and manageability, and its manufacturing method is described. A structural composite material (100) embedded with this modular sensor (10) for damage detection is also described.
The modular sensor (10) comprises an optical fiber including a FBG sensor (4), a connector (12) connected to an end portion of the optical fiber, and a tube and/or a film partly covering the optical fiber at a portion where the fiber is drawn out of the composite material (100) in order to prevent breakage of the optical fiber due to stress concentrated at said portion.
摘要翻译：描述了一种用于利用光纤（FBG传感器（4））检测损坏的模块化传感器（10），以检测具有高水平的可视性和可管理性的复合材料（100）的损坏，以及其制造方法。还描述了嵌入该模块化传感器（10）以用于损坏检测的结构复合材料（100）。模块化传感器（10）包括：包括FBG传感器（4）的光纤，连接到光纤端部的连接器（12），以及部分地覆盖光纤的管和/或膜纤维从复合材料（100）中拉出，以防止由于集中在所述部分处的应力而引起的光纤断裂。

10. 发明公开

EP1685457A2 METHODS FOR MONITORING STRUCTURAL HEALTH CONDITIONS 审中-公开
标题翻译：程序对监测结构完整性态的
公开(公告)号：EP1685457A2
公开(公告)日：2006-08-02
申请号：EP04788775.7
申请日：2004-09-16
申请人： Hyeung-Yun, Kim
发明人： Hyeung-Yun, Kim
IPC分类号： G06F1/00
CPC分类号： G01H11/08 , G01H9/004 , G01H11/00 , G01M5/0033 , G01M5/0066 , G01M5/0091 , G01M11/086 , G01N29/043 , G01N29/0609 , G01N29/0672 , G01N29/07 , G01N29/223 , G01N29/245 , G01N29/2475 , G01N29/2493 , G01N29/28 , G01N29/4418 , G01N29/4463 , G01N2291/011 , G01N2291/015 , G01N2291/02491 , G01N2291/0258 , G01N2291/0422 , G01N2291/0423 , G01N2291/0427 , G01N2291/106
摘要： The present invention provides methods for interrogating a damage of a host structure using a diagnostic network patch (DNP) system having patches. An interrogation module partitions the plurality of patched in subgroups and measures the sensor signals generated and received by actuator and sensor patches, respectively. Then, a process module loads sensor signal data to identify Lamb wave modes, determine the time of arrival of the modes and generate a tornographic image. It also determines distribution of other structural condition indices to generate tomographic images of the host structure. A set of tomographic images can be stacked to generate a hyperspectral tomography cube. A classification module generates codebook based on K-mean/Leaming Vector Quantization algorithm and uses a neural-ftizzy-inference system to determine the type of damages of the host structure.

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