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1.发明授权Composite structures, such as coated wiring assemblies, having integral fiber optic-based condition detectors and systems which employ the same 有权复合结构，例如涂覆布线组件，其具有基于光纤的整体状态检测器和采用其的系统公开(公告)号：US07154081B1
公开(公告)日：2006-12-26
申请号：US10720694
申请日：2003-11-25
CPC分类号： G01M11/086 , D07B1/145 , G01B11/18 , G02B6/022 , G02B6/02204
摘要： Integral fiber optic-based condition sensors detect conditions of a composite structure, e.g., a coated wire assembly so as to detect damage or conditions that may damage the same. Preferably, at least one optical fiber sensor having a plurality of Bragg gratings written into the fiber at spaced-apart locations along its axial length is integrated into the electrical insulator coating of a wire, wire bundle or wiring harness. The fiber optic sensor may thus be employed to measure the environmental loads on the electrical wiring including stresses from bending, axial loading, pinch points, high temperature excursions and chemical damage. The system is capable of detecting and locating transient conditions that might cause damage to a wiring system or permanent changes in state associated with damage events. The residual stress in the electrical insulator coating of a wire, wire bundle, or wiring harness are used to monitor the evolution of damage by wear or chaffing processes. Detected stress relief on one or more Bragg gratings will thus be indicative of damage to the insulator coating on the conductor. As such, the magnitude of such stress relief may be detected and used as an alert that the wire insulation is damaged to an unsafe extent.
摘要翻译： 基于光纤的整体状态传感器检测复合结构的状况，例如涂覆的电线组件，以便检测可能损坏复合结构的损坏或状况。 优选地，具有多个布拉格光栅的至少一个光纤传感器被集成到线，线束或线束的电绝缘体涂层中，所述多个布拉格光栅沿其轴向长度在间隔开的位置处写入光纤。 因此，光纤传感器可用于测量电线路上的环境负载，包括来自弯曲，轴向载荷，夹点，高温偏移和化学损伤的应力。 该系统能够检测和定位可能导致接线系统损坏的瞬态条件或与损坏事件相关的永久性状态变化。 线，线束或线束的电绝缘体涂层中的残余应力用于通过磨损或磨损过程来监测损伤的演变。 因此，一个或多个布拉格光栅上的检测到的应力消除将指示导体上的绝缘体涂层的损坏。 因此，这种应力消除的大小可以被检测并用作提醒电线绝缘被损坏到不安全的程度。
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2.发明授权Interferometric sensors utilizing bulk sensing mediums extrinsic to the input/output optical fiber 失效利用输入/输出光纤外部的体感测介质的干涉测量传感器公开(公告)号：US06671055B1
公开(公告)日：2003-12-30
申请号：US09548972
申请日：2000-04-13
申请人： Thomas A. Wavering , Scott A. Meller , Jason W. Borinski , Wade J. Pulliam , Patrick M. Russler
发明人： Thomas A. Wavering , Scott A. Meller , Jason W. Borinski , Wade J. Pulliam , Patrick M. Russler
IPC分类号： G01B902
CPC分类号： G02B6/29398 , G01B9/02007 , G01B9/02023 , G01B9/02027 , G01B2290/25 , G02B6/29358
摘要： The present invention is directed toward an interferometric sensor that permits the simultaneous measurement of a change in more than one environmental condition. The interferometric sensor comprises an optical fiber and a plurality of sensing regions positioned in an operable relationship to the optical fiber. Each sensing region has partially reflective boundaries and produces an interferometric signal.
摘要翻译： 本发明涉及一种允许同时测量多于一种环境条件的变化的干涉测量传感器。 干涉测量传感器包括光纤和与光纤可操作的关系定位的多个感测区域。 每个感测区域具有部分反射边界并产生干涉信号。
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3.发明申请公开(公告)号：US20080141780A1
公开(公告)日：2008-06-19
申请号：US11987411
申请日：2007-11-29
IPC分类号： G01L9/00
CPC分类号： G01N17/04
摘要： Sensors, methods and systems detect physical effects (e.g., corrosion, erosion, scaling and/or oxidation) of a fluid in contact with a diaphragm associated with a sensor assembly. The diaphragm preferably exhibits a first mechanical response when initially placed into contact with a fluid and a second mechanical response different from the first mechanical response after exposure to the fluid for a predetermined period of time. A change in the diaphragm mechanical responses between at least the first and second mechanical responses is therefore indicative of physical effects on the diaphragm over time caused by the fluid in contact therewith. A mechanical response sensor is operatively associated with the diaphragm so as to measure the change in the diaphragm mechanical responses and thereby determine the physical effects over time of the fluid in contact with the diaphragm. In some embodiments, the diaphragm is actuated due to a pressure condition exerted by the fluid or in other embodiments the diaphragm is internally actuated. Internal actuation includes pneumatic, hydraulic or piezoelectric means for producing a mechanical response of the diaphragm. In one embodiment, therefore, fluid corrosivity may be sensed by bringing a sensor assembly having a pressure-actuated diaphragm into contact with a corrosive fluid, exerting a pressure condition on the diaphragm so as to cause the mechanical response of the diaphragm, measuring the diaphragm deflection or strain, and then deriving fluid corrosivity from the measured diaphragm mechanical response.
摘要翻译： 传感器，方法和系统检测与与传感器组件相关联的隔膜接触的流体的物理效应（例如腐蚀，侵蚀，结垢和/或氧化）。 隔膜优选地在最初放置成与流体接触并且在暴露于流体一段预定时间段之后与第一机械响应不同的第二机械响应展现出第一机械响应。 因此，在至少第一和第二机械响应之间的隔膜机械响应的变化因此表示随着时间的流逝与膜片的接触对隔膜的物理作用。 机械响应传感器与隔膜可操作地相关联，以便测量隔膜机械响应的变化，从而确定与隔膜接触的流体随时间的物理效应。 在一些实施例中，由于由流体施加的压力状态，隔膜被致动，或者在其它实施例中，隔膜在内部被致动。 内部致动包括用于产生隔膜的机械响应的气动，液压或压电装置。 因此，在一个实施例中，可以通过使具有压力致动隔膜的传感器组件与腐蚀性流体接触来感测流体腐蚀性，在隔膜上施加压力状态，以便引起隔膜的机械响应，测量隔膜 偏转或应变，然后从测量的膜片机械响应中导出流体的腐蚀性。
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公开(公告)号：US06571639B1
公开(公告)日：2003-06-03
申请号：US09259972
申请日：1999-03-01
申请人： Russell G. May , Thomas A. Wavering
发明人： Russell G. May , Thomas A. Wavering
IPC分类号： G01L124
CPC分类号： G01L1/242
摘要： A fiber optic system and method of use is disclosed. The fiber optic system comprises a laminated, pre-stressed, piezoelectric actuator; and a fiber optic strain gage having an input/output fiber, wherein the fiber optic strain gage is attached to a surface of the laminated, pre-stressed, piezoelectric actuator. The fiber optic system is useful for performing dynamic mechanical analysis on a sample.
摘要翻译： 公开了一种光纤系统和使用方法。 光纤系统包括层叠的预应力的压电致动器; 以及具有输入/输出光纤的光纤应变计，其中所述光纤应变计连接到所述层压的预应力压电致动器的表面。 光纤系统对于对样品进行动态机械分析是有用的。
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公开(公告)号：US06275628B1
公开(公告)日：2001-08-14
申请号：US09440499
申请日：1999-11-15
IPC分类号： G02B626
CPC分类号： G02B6/02057 , G02B6/14 , G02B6/29317
摘要： A single-ended long period grating optical device is presented. The single-ended optical device comprises an optical waveguide having at least one core mode and a plurality of cladding modes. At least one long period grating couples light from the core mode to the cladding modes. A reflector is positioned in an operable relationship to the long period grating, and the reflector reflects a signal. A mode stripper is positioned after the long period grating and removes the cladding modes from a transmitted signal and the reflected signal.
摘要翻译： 提出了一种单端长周期光栅光学器件。 单端光学器件包括具有至少一个核心模式和多个包层模式的光波导。 至少一个长周期光栅将光从核心模式耦合到包层模式。 反射器被定位成与长周期光栅可操作的关系，并且反射器反射信号。 模式剥离器位于长周期光栅之后，并从发射信号和反射信号中去除包层模式。
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公开(公告)号：US08085165B2
公开(公告)日：2011-12-27
申请号：US12027850
申请日：2008-02-07
IPC分类号： G08C23/00
摘要： A passive sensor that is located on or adjacent to a structure that can be used to monitor the affect of environment on a structure or coating that is used to protect the structure. The sensor includes a parasitic element that interacts with the environment and influences the intensity of the electromagnetic response between the inductive element of the sensor and the antenna of the interrogation reader device. The condition of the parasitic element is determined by the radio frequency interaction of the reader antenna and the inductive element of the sensor. The parasitic element condition correlates to the environmental severity, or corrosivity of the environment and damage to metallic structures or protective coatings. An integrated circuit within the sensor is capable of storing identification, time, material, and measurement information. The sensor and system of the present invention is useful for tracking and monitoring cumulate environmental damage to a structure.
摘要翻译： 被动传感器位于结构上或附近，可用于监测环境对用于保护结构的结构或涂层的环境的影响。 传感器包括与环境相互作用并影响传感器的感应元件和询问读取器设备的天线之间的电磁响应的强度的寄生元件。 寄生元件的条件由读取器天线与传感器的感应元件的射频相互作用决定。 寄生元件条件与环境严重程度或环境的腐蚀性以及金属结构或保护涂层的损坏相关。 传感器内的集成电路能够存储识别，时间，材料和测量信息。 本发明的传感器和系统可用于跟踪和监测对结构的累积的环境损害。
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7.发明授权公开(公告)号：US07540197B2
公开(公告)日：2009-06-02
申请号：US11987411
申请日：2007-11-29
IPC分类号： G01L7/08
CPC分类号： G01N17/04
摘要： Sensors, methods and systems detect physical effects (e.g., corrosion, erosion, scaling and/or oxidation) of a fluid in contact with a diaphragm associated with a sensor assembly. The diaphragm preferably exhibits a first mechanical response when initially placed into contact with a fluid and a second mechanical response different from the first mechanical response after exposure to the fluid for a predetermined period of time. A change in the diaphragm mechanical responses between at least the first and second mechanical responses is therefore indicative of physical effects on the diaphragm over time caused by the fluid in contact therewith. A mechanical response sensor is operatively associated with the diaphragm so as to measure the change in the diaphragm mechanical responses and thereby determine the physical effects over time of the fluid in contact with the diaphragm. In some embodiments, the diaphragm is actuated due to a pressure condition exerted by the fluid or in other embodiments the diaphragm is internally actuated. Internal actuation includes pneumatic, hydraulic or piezoelectric means for producing a mechanical response of the diaphragm. In one embodiment, therefore, fluid corrosivity may be sensed by bringing a sensor assembly having a pressure-actuated diaphragm into contact with a corrosive fluid, exerting a pressure condition on the diaphragm so as to cause the mechanical response of the diaphragm, measuring the diaphragm deflection or strain, and then deriving fluid corrosivity from the measured diaphragm mechanical response.
摘要翻译： 传感器，方法和系统检测与与传感器组件相关联的隔膜接触的流体的物理效应（例如腐蚀，侵蚀，结垢和/或氧化）。 隔膜优选地在最初放置成与流体接触并且在暴露于流体一段预定时间段之后与第一机械响应不同的第二机械响应展现出第一机械响应。 因此，在至少第一和第二机械响应之间的隔膜机械响应的变化因此表示随着时间的流逝与膜片的接触对隔膜的物理作用。 机械响应传感器与隔膜可操作地相关联，以便测量隔膜机械响应的变化，从而确定与隔膜接触的流体随时间的物理效应。 在一些实施例中，由于由流体施加的压力状态，隔膜被致动，或者在其它实施例中，隔膜在内部被致动。 内部致动包括用于产生隔膜的机械响应的气动，液压或压电装置。 因此，在一个实施例中，可以通过使具有压力致动隔膜的传感器组件与腐蚀性流体接触来感测流体腐蚀性，在隔膜上施加压力状态，以便引起隔膜的机械响应，测量隔膜 偏转或应变，然后从测量的膜片机械响应中导出流体的腐蚀性。
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公开(公告)号：US20080204275A1
公开(公告)日：2008-08-28
申请号：US12027850
申请日：2008-02-07
IPC分类号： G08C19/00
摘要： A passive sensor that is located on or adjacent to a structure that can be used to monitor the affect of environment on a structure or coating that is used to protect the structure. The sensor includes a parasitic element that interacts with the environment and influences the intensity of the electromagnetic response between the inductive element of the sensor and the antenna of the interrogation reader device. The condition of the parasitic element is determined by the radio frequency interaction of the reader antenna and the inductive element of the sensor. The parasitic element condition correlates to the environmental severity, or corrosivity of the environment and damage to metallic structures or protective coatings. An integrated circuit within the sensor is capable of storing identification, time, material, and measurement information. The sensor and system of the present invention is useful for tracking and monitoring cumulate environmental damage to a structure.
摘要翻译： 被动传感器位于结构上或附近，可用于监测环境对用于保护结构的结构或涂层的环境的影响。 传感器包括与环境相互作用并影响传感器的感应元件和询问读取器设备的天线之间的电磁响应的强度的寄生元件。 寄生元件的条件由读取器天线与传感器的感应元件的射频相互作用决定。 寄生元件条件与环境严重程度或环境的腐蚀性以及金属结构或保护涂层的损坏相关。 传感器内的集成电路能够存储识别，时间，材料和测量信息。 本发明的传感器和系统可用于跟踪和监测对结构的累积的环境损害。
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