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1. 发明申请

WO2017009606A1 IMPROVED SENSITIVITY OPTICAL FIBER SENSING SYSTEMS 审中-公开
标题翻译：改进的灵敏度光纤传感系统
公开(公告)号：WO2017009606A1
公开(公告)日：2017-01-19
申请号：PCT/GB2016/052050
申请日：2016-07-07
申请人： SILIXA LTD.
发明人： FARHADIROUSHAN, Mahmoud , PARKER, Tom , SHATALIN, Sergey
IPC分类号： G01D5/26 , G01D5/353
CPC分类号： G01D5/3537 , G01D5/268 , G01D5/353
摘要： Embodiments of the invention provide optical fiber sensing systems (70) wherein sensitivity is increased by the provision of multiple parallel-connected sensing fibers (76). The fibers (76) are in some embodiments substantially contiguous to each other along the sensing parts of their lengths, for example by being incorporated into a common cable or the like. That is, the fibers in some embodiments run substantially parallel to each other and/or are further arranged such that incident energy at a particular location is incident upon known corresponding sections of the respective fibers substantially simultaneously. The provision of multiple fibers allows for multiple backscatter or reflection signals to be generated in response to a particular event to be sensed, the multiple backscatter or reflection signals pertaining to the same event to be sensed (e.g. temperature change, or incident acoustic energy) being combined together to provide for a greater overall signal for inputting into an optical fiber sensing system for processing. The multiple sensing fibers also permit the optical fiber sensing system to output optical signals for inputting into the fibers, typically as optical pulses, of a greater power than would otherwise be possible without entering the domain of non-linear fiber responses. This is because the output signal is divided between the plurality of sensing fibers, and hence the individual optical signal into each sensing fiber remains within the linear response region. However, the overall backscatter and/or reflections that is/are generated and upon which sensing is based are increased in line with the overall increase in signal power, and hence overall the signal to noise ratio of the system is increased.
摘要翻译：本发明的实施例提供了通过提供多个并联连接的感测光纤（76）来提高灵敏度的光纤传感系统（70）。在一些实施例中，纤维（76）沿其长度的感测部分彼此基本上相邻，例如通过结合到公共电缆等中。也就是说，在一些实施例中，纤维基本上彼此平行地延伸和/或进一步布置成使得特定位置处的入射能量基本上同时入射到相应纤维的已知相应部分上。提供多个光纤允许响应于要感测的特定事件而产生多个反向散射或反射信号，与要感测的相同事件（例如温度变化或入射声能）相关的多个后向散射或反射信号是组合在一起以提供更大的总信号，用于输入到用于处理的光纤感测系统中。多个感测光纤还允许光纤感测系统输出光信号，用于输入光纤（通常为光脉冲），其功率大于否则不会进入非线性光纤响应域的情况下将更大的功率。这是因为在多个感测光纤之间分配输出信号，因此到每个感测光纤中的各个光信号保持在线性响应区域内。然而，根据信号功率的总体增加，生成并且基于感测的反向散射和/或反射增加，因此总体上增加了系统的信噪比。

2. 发明申请

WO2015067235A3 DEVICE FOR MONITORING WEAR ON CONTACT LINES 审中-公开
标题翻译：装置用于驱动磨损监控系
公开(公告)号：WO2015067235A3
公开(公告)日：2015-07-02
申请号：PCT/DE2014000571
申请日：2014-11-07
申请人： HOTTINGER MESSTECHNIK BALDWIN
发明人： VIEL WOLFGANG
IPC分类号： B60L5/20 , B60L5/22 , G01L1/00
CPC分类号： G01L1/246 , B60L5/20 , B60L5/22 , G01D5/3537 , G01L5/107
摘要： The invention relates to a device for measuring force and for monitoring wear on contact lines (3) by means of a force-measuring system, which device has the following features: two contact strips (1a, 1b), which, in the operating state, are oriented at a right angle to a contact line (3) to be monitored, and two connecting bars (2a, 2b), which, in the operating state, are oriented parallel to the contact line (3) to be monitored, wherein a rod-shaped force sensor (4a - 4d) is fastened to each end segment of the two connecting bars (2a, 2b) and each of said rod-shaped force sensors (4a - 4d) extends in an axial direction of the respective connecting bar (2a, 2b).
摘要翻译：本发明涉及一种用于测力和监测由测力系统，它具有下列特征的手段上悬链线（3）磨损：两个磨蚀带（1A，1B），其在操作状态对准垂直于接触线的监视（3）和两个连接杆（图2A，2B）（以与在接触线3）的监视并行操作状态排列，其中在所述两个连接杆（2a的各端部，2b）的每一个都具有棒状负载传感器（4A - 4D）被附接，并且每个这些棒状称重传感器（4A - 图4d）延伸（在相应的连接支柱2a的轴向方向上，2b）上延伸。

3. 发明申请

WO2013085833A1 METHOD AND APPARATUS FOR MOTION COMPENSATION IN INTERFEROMETRIC SENSING SYSTEMS 审中-公开
标题翻译：干涉式感测系统运动补偿的方法和装置
公开(公告)号：WO2013085833A1
公开(公告)日：2013-06-13
申请号：PCT/US2012/067554
申请日：2012-12-03
申请人： LUNA INNOVATIONS INCORPORATED
发明人： FROGGATT, Mark, E. , SANG, Alexander, K. , GIFFORD, Dawn, K. , KLEIN, Justin, W.
IPC分类号： G01B9/02 , G01N21/45
CPC分类号： G01B9/0207 , G01B9/02004 , G01B9/02069 , G01B9/02072 , G01B9/02076 , G01B9/02083 , G01B9/0209 , G01B11/0658 , G01B11/18 , G01D5/3537 , G01L1/242 , G01M11/3172
摘要： An optical interrogation system, e.g., an OFDR-based system, measures local changes, of index of refraction of a sensing light guide subjected to a time- varying disturbance. Interferometric measurement signals detected for a length of the sensing light guide are transformed into the spectral domain. A time varying signal is determined from the transformed interferometric measurement data set. A compensating signal is determined from the time varying signal which is used to compensate the interferometric measurement data set for the time-varying disturbance. Further robustness is achieved using averaging and strain compensation. The compensation technique may be applied along the length of the light guide.
摘要翻译：光学询问系统，例如基于OFDR的系统，测量经受时变干扰的感测光导的折射率的局部变化。在感测光导的长度上检测到的干涉测量信号被转换成光谱域。从变换的干涉测量数据集确定时变信号。根据用于补偿时变干扰的干涉测量数据集的时变信号来确定补偿信号。使用平均和应变补偿实现了更强的鲁棒性。可以沿着光导的长度施加补偿技术。

4. 发明申请

WO2007073114A1 APPARATUS AND SENSOR FOR MEASURING STRAIN OF UNDERGROUND PIPE 审中-公开
标题翻译：用于测量地下管线应变的装置和传感器
公开(公告)号：WO2007073114A1
公开(公告)日：2007-06-28
申请号：PCT/KR2006/005652
申请日：2006-12-22
申请人： GMG CO., LTD. , CHANG, Ki-tae
发明人： CHANG, Ki-tae
IPC分类号： G01B11/16
CPC分类号： G01B11/18 , G01D3/0365 , G01D5/3537 , G01K11/32 , G01M11/086
摘要： Disclosed herein is an underground pipe deformation measuring apparatus comprising a measuring sensor including at least one displacement measuring optical fiber and at least one temperature measuring optical fiber which are disposed below an underground pipe, and a measuring unit including a light source generator connected to one end of the at least one displacement measuring optical fiber and one end of the at least one temperature measuring optical fiber for irradiating light, a deformation measurement analyzer for measuring the wavelength of the light reflected from the at least one displacement measuring optical fiber in real time to analyze the change of the at least one displacement measuring optical fiber, and a temperature measurement analyzer for measuring the wavelength of the light reflected from the at least one temperature measuring optical fiber in real time to analyze the change of the at least one temperature measuring optical fiber.
摘要翻译：本发明公开了一种地下管道变形测量装置，包括：测量传感器，包括位于地下管道下方的至少一个位移测量光纤和至少一个温度测量光纤;以及测量单元，包括连接到一端的光源发生器所述至少一个位移测量光纤和所述至少一个用于照射光的温度测量光纤的一端;变形测量分析器，用于实时测量从所述至少一个位移测量光纤反射的光的波长，分析所述至少一个位移测量光纤的变化;以及温度测量分析器，用于实时测量从所述至少一个温度测量光纤反射的光的波长，以分析所述至少一个温度测量光学器件的变化纤维。

5. 发明申请

WO2015056012A1 OPTICAL FIBER CABLE 审中-公开
标题翻译：光纤电缆
公开(公告)号：WO2015056012A1
公开(公告)日：2015-04-23
申请号：PCT/GB2014/053100
申请日：2014-10-15
申请人： SILIXA LTD.
发明人： FARHADIROUSHAN, Mahmoud , FINFER, Daniel , MAHUE, Veronique , PARKER, Tom , SHATALIN, Sergey , STRUSEVICH, Dmitry
IPC分类号： G01D5/353
CPC分类号： G01F1/661 , G01D5/3537 , G02B6/4415
摘要： Embodiments of the present invention provide a cable for optical fiber sensing applications formed from fiber wound around a cable core. A protective layer is then preferably placed over the top of the wound fiber, to protect the fiber, and to help keep it in place on the cable core. The cable core is preferably of a diameter to allow bend-insensitive fiber to be wound thereon with low bending losses. The effect of winding the fiber onto the cable core means that the longitudinal sensing resolution of the resulting cable is higher than simple straight fiber, when the cable is used with an optical fiber sensing system such as a DAS or DTS system. The achieved resolution for the resulting cable is a function of the fiber winding diameter and pitch, with a larger diameter and reduced winding pitch giving a higher longitudinal sensing resolution.
摘要翻译：本发明的实施例提供了一种用于光纤传感应用的电缆，其由围绕电缆芯的纤维缠绕形成。然后优选将保护层放置在缠绕光纤的顶部上方，以保护光纤，并帮助将其保持在电缆芯上的适当位置。电缆芯优选具有允许弯曲不敏感纤维以低弯曲损耗缠绕在其上的直径。将光纤缠绕到电缆芯上的效果意味着当电缆与诸如DAS或DTS系统的光纤传感系统一起使用时，所得电缆的纵向感测分辨率高于简单的直线光纤。所得到的电缆的分辨率是光纤绕组直径和间距的函数，具有较大的直径和减小的绕组间距，从而提供更高的纵向感测分辨率。

6. 发明申请

WO2015050355A1 최대 변형률 측정을 위한 FBG 센서, 제조방법 및 사용방법 审中-公开
标题翻译：用于测量最大应变的FBG传感器，制造方法和使用方法
公开(公告)号：WO2015050355A1
公开(公告)日：2015-04-09
申请号：PCT/KR2014/009159
申请日：2014-09-30
申请人： 한국표준과학연구원
发明人： 권일범 , 임주은 , 김미현 , 최기선
IPC分类号： G01B11/16 , G01L1/24 , G01N21/41
CPC分类号： G01L1/246 , G01B1/00 , G01B11/16 , G01B11/165 , G01B11/18 , G01D5/353 , G01D5/35316 , G01D5/3537
摘要： 본 발명은 측정대상의 최대 변형률을 측정할 수 있는 FBG 센서, 센서의 제조방법 및 센서의 사용방법에 관한 것이다. 이를 위해, 내부에 FBG센서(150)가 구비된 광섬유(130); 일면에 광섬유(130)가 접해지는 제 1 금속박(100); 일면에 면접하는 제 2 금속박(120); 제 1, 2 금속박(100, 120) 사이에 구비되는 접착층(140); FBG센서(150)를 통해 제 1, 2 금속박(100, 120)의 잔류 변형률을 측정하는 수단; 및 측정된 잔류 변형률 값과 실험으로 구한 감도계수(Csen)에 기초하여 최대 변형률을 산출하는 수단;을 포함하는 것을 특징으로 하는 최대 변형률 측정을 위한 FBG 센서가 제공된다.
摘要翻译：本发明涉及一种用于测量被测物体的最大应变的FBG传感器，该传感器的制造方法以及该传感器的使用方法。为此，提供了用于测量最大应变的FBG传感器，包括：其中具有FBG传感器（150）的光纤（130）; 在其一个表面上接触光纤（130）的第一金属箔（120）; 与所述一个表面进行表面接触的第二金属箔（120）; 设置在第一和第二金属箔（100,120）之间的粘合层（140）; 用于测量通过FBG传感器（150）的第一和第二金属箔（100,120）的残余应变的装置; 以及基于通过实验获得的测量的残余应变和灵敏度系数（Csen）来计算最大应变的方法。

7. 发明申请

WO2012075474A3 DFB FIBER LASER BEND SENSOR AND OPTICAL HETERODYNE MICROPHONE 审中-公开
标题翻译： DFB光纤激光弯曲传感器和光学异形麦克风
公开(公告)号：WO2012075474A3
公开(公告)日：2013-07-25
申请号：PCT/US2011063194
申请日：2011-12-02
申请人： OFS FITEL LLC , ABEDIN KAZI S , WESTBROOK PAUL S
发明人： ABEDIN KAZI S , WESTBROOK PAUL S
IPC分类号： G02B6/00
CPC分类号： G01D5/268 , G01D5/35316 , G01D5/3537 , G01D5/3538 , G01H9/004 , G01J1/0425 , G01L1/243 , G01L1/246 , G01L11/025 , G01N2021/7716 , H04R23/008
摘要： Methods and systems using one or more distributed feedback (DFB) lasers for capturing changes in the lasing environment are disclosed, Specifically, a sensor for measuring a measurand, such as pressure or temperature, or changes in a measurand, includes a fiber with at least one core, at least one fiber laser cavity formed by a single fiber grating in the core, wherein the laser operates on at least two modes along at least part of its length. The DFB laser includes a section that is bent into a non-linear shape and at least one pump laser connected to the fiber laser cavity. When the DFB laser experiences a perturbation or measurand change that changes the spacing of the modes, a change in an RF beat note is generated. This beat note can then be measured and related to the measurand change.
摘要翻译：公开了使用一个或多个分布反馈（DFB）激光器来捕获激光环境中的变化的方法和系统。具体地，用于测量被测量的传感器，例如压力或温度，或被测量的变化，包括至少具有纤维一个芯，由芯中的单个光纤光栅形成的至少一个光纤激光腔，其中所述激光器沿其长度的至少一部分沿至少两个模式工作。 DFB激光器包括弯曲成非线性形状的部分和连接到光纤激光腔的至少一个泵浦激光器。当DFB激光器经历改变模式间距的扰动或被测量的变化时，产生RF拍音的变化。然后可以测量这个拍音，并与被测量的变化相关。

8. 发明申请

WO2013044919A1 OPTICAL FIBRE GRATING SENSOR SYSTEM AND METHOD 审中-公开
标题翻译：光纤光栅传感器系统及方法
公开(公告)号：WO2013044919A1
公开(公告)日：2013-04-04
申请号：PCT/DK2012/050345
申请日：2012-09-19
申请人： VESTAS WIND SYSTEMS A/S
发明人： HJORT, Thomas , GLAVIND, Lars
IPC分类号： G01L1/24 , G01M5/00 , G01M11/08 , G01D5/353 , G01K11/32
CPC分类号： G01D5/3537 , G01D5/35303 , G01D5/35316 , G01D5/35341 , G01D5/35387 , G01K11/3206 , G01L1/246 , G01M5/0016 , G01M5/0091 , G01M11/083
摘要： The present invention relates to an optical fibre for a fibre optic sensor, comprising a first optical grating adapted to operate over a first range of wavelengths; and at least one set of further gratings adapted to operate over a second range of wavelengths, each grating being adapted to operate over a portion of the second range; wherein, each grating within said set has an operating range that partially overlaps with at least one other such grating operating range. The invention also extends to a sensor system, and method, using such an optical fibre.
摘要翻译：本发明涉及一种用于光纤传感器的光纤，包括适于在第一波长范围上工作的第一光栅; 以及适于在第二波长范围上操作的至少一组另外的光栅，每个光栅适于在所述第二范围的一部分上操作; 其中，所述组内的每个光栅具有与至少一个其它此类光栅工作范围部分重叠的工作范围。本发明还延伸到使用这种光纤的传感器系统和方法。

9. 发明申请

WO2007107693A1 FIBER OPTIC CABLE 审中-公开
标题翻译：光纤电缆
公开(公告)号：WO2007107693A1
公开(公告)日：2007-09-27
申请号：PCT/GB2007/000593
申请日：2007-02-22
申请人： SCHLUMBERGER HOLDINGS LIMITED , SCHLUMBERGER CANADA LIMITED , PRAD RESEARCH AND DEVELOPMENT N. V. , SERVICES PETROLIERS SCHLUMBERGER , SCHLUMBERGER TECHNOLOGY B. V. , HARTOG, Arthur, H. , STRONG, Andrew, P.
发明人： HARTOG, Arthur, H. , STRONG, Andrew, P.
IPC分类号： G02B6/44 , G01D5/353 , G01B11/16 , G01L1/24
CPC分类号： G01L1/246 , G01D5/3537 , G01L1/242 , G02B6/4432
摘要： A fiber optic cable includes a strain element including a first optical fiber and an optical element including a second optical fiber. The optical element is compliantly coupled with the strain element to transfer a portion of strain experienced by the strain element to the optical element. A fiber optic cable includes a strain transfer member, a central optical fiber disposed through the strain transfer member, and a tight jacket mechanically coupling the central optical fiber and the strain transfer member. The fiber optic cable further includes a compliant layer disposed about and affixed to the strain transfer member; a peripheral optical fiber disposed in the compliant layer, such that a portion of the strain experienced by the strain transfer member is transferred to the peripheral optical fiber via the compliant layer; and a protective cover disposed about the compliant layer.
摘要翻译：光纤电缆包括包括第一光纤的应变元件和包括第二光纤的光学元件。光学元件与应变元件顺应地耦合以将应变元件经历的应变的一部分传递到光学元件。光纤电缆包括应变传递部件，通过应变传递部件设置的中心光纤，以及将中心光纤与应变传递部件机械连接的紧套。光纤电缆还包括设置在应变传递构件周围并固定到应变传递构件上的柔顺层; 设置在柔性层中的周边光纤，使得应变传递部件经受的一部分应变通过柔性层传递到外围光纤; 以及围绕柔顺层布置的保护盖。

10. 发明申请

WO2016170235A1 DISPOSITIF DE DÉTECTION D'IMPACT, EN PARTICULIER POUR MISSILE 审中-公开
标题翻译：冲击检测装置，特别适用于一个MISSILE
公开(公告)号：WO2016170235A1
公开(公告)日：2016-10-27
申请号：PCT/FR2016/000073
申请日：2016-04-12
申请人： MBDA FRANCE
发明人： GREINER, Bernard , LOOSFELD, Mathieu , TASTETS, Kevin
IPC分类号： F42C1/00 , F42C19/07
CPC分类号： F42C19/07 , F42C1/00 , G01D5/3537
摘要： Le dispositif de détection d'impact (4) comporte au moins un guide d'onde (6) pourvu à chacune de ses deux extrémités (7, 8) d'un connecteur (19), et un anneau (15) de contour externe courbe, ledit anneau (15) formant une pièce (16) indépendante à surfaces radiales planes, ledit guide d'onde (6) étant intégré dans l'épaisseur de l'anneau (15) autour de cet anneau (15), et les deux extrémités (7, 8) du guide d'onde (6) étant agencées à l'extérieur de l'anneau (15).
摘要翻译：本发明涉及一种冲击检测装置（4），其包括在其两端（7,8）中的每一个处设置有连接器（19）的至少一个波导（6），以及具有弯曲所述环（15）形成具有平面径向表面的单独部分（16），所述波导（6）围绕所述环（15）内置在所述环（15）的主体中，并且所述两端波导（6）的布置在环（15）的外侧上。

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