公开(公告)号：US08369671B2

公开(公告)日：2013-02-05

申请号：US12714177

申请日：2010-02-26

Applicant: Hua Xia ,  Axel Busboom ,  Kevin Matthew Durocher ,  Renato Guida ,  George Theodore Dalakos ,  Glen Peter Koste ,  Boon Kwee Lee

Inventor： Hua Xia ,  Axel Busboom ,  Kevin Matthew Durocher ,  Renato Guida ,  George Theodore Dalakos ,  Glen Peter Koste ,  Boon Kwee Lee

IPC: G02B6/02 ,  G02B6/00 ,  G02B6/44

CPC classification number: G02B6/4492 ,  G01D5/35316 ,  G01K11/3206 ,  G01L1/246 ,  G01L11/025

Abstract: In one aspect, the present invention provides a hermetically sealed fiber sensing cable comprising: a core fiber comprising at least one Bragg grating region, an outer surface and a length; a fiber cladding in contact with the core fiber along the entire length of the core fiber, the fiber cladding having an outer surface and a length; a carbon layer disposed upon the outer surface of the fiber cladding along the entire length of the fiber cladding, the carbon layer comprising diamond-like carbon; a hydrogen ion absorption layer in contact with the carbon layer, the hydrogen ion absorption layer being disposed on the outer surface of the carbon layer; and an outer sleeve. Also provided in another aspect of the present invention, is a component for a hermetically sealed fiber sensing cable.

Abstract translation: 一方面，本发明提供了一种密封的光纤传感电缆，包括：芯纤维，包括至少一个布拉格光栅区域，外表面和长度; 光纤包层与芯纤维沿核心纤维的整个长度接触，纤维包层具有外表面和长度; 沿着所述纤维包层的整个长度设置在所述纤维包层的外表面上的碳层，所述碳层包含类金刚石碳; 与碳层接触的氢离子吸收层，氢离子吸收层设置在碳层的外表面上; 和外套筒。 在本发明的另一方面中还提供了一种用于气密密封的光纤传感电缆的部件。

公开(公告)号：US08358883B2

公开(公告)日：2013-01-22

申请号：US13366534

申请日：2012-02-06

Applicant: Giuseppe Maria Prisco

Inventor： Giuseppe Maria Prisco

IPC: G02B6/00 ,  B25J17/00

CPC classification number: G02B6/02042 ,  A61B34/30 ,  A61B34/35 ,  A61B2034/2061 ,  A61B2090/061 ,  G01L1/246 ,  Y10T74/20305

Abstract: A shape sensing system to determine the position and orientation of one link with respect to another link in a kinematic chain. An optical fiber is coupled to two or more links in a kinematic chain. A shape sensing segment is defined to start at a proximal link and to end at a distal link, crossing one or more joints. A reference frame is defined at the start of the shape sensing segment. As the joints move, an interrogator senses strain in the shape sensing segment. The sensed strain is used to output a Cartesian position and orientation of the end of the shape sensing segment with respect to the reference frame defined at the start of the shape sensing segment. The pose of the kinematic chain is determined from the Cartesian positions and orientations of one or more shape sensing segments defined for the kinematic chain and from an a priori model and constraints of the kinematic chain.

Abstract translation: 一种形状感测系统，用于确定一个链路相对于运动链中的另一个链路的位置和方向。 光纤耦合到运动链中的两个或更多个链路。 形状感测段被定义为在近端链路处开始并且在远端连接处终止，穿过一个或多个关节。 在形状感测段的开始处定义参考帧。 当关节移动时，询问器感测形状感测段中的应变。 感测的应变用于相对于在形状感测段的开始处限定的参考帧输出形状感测段的端部的笛卡尔位置和取向。 运动链的姿态是根据为运动链和先验模型定义的一个或多个形状感测部分的笛卡尔位置和取向以及运动链的约束来确定的。

公开(公告)号：US20130004117A1

公开(公告)日：2013-01-03

申请号：US13511410

申请日：2010-11-26

Applicant: Adam Reedman

Inventor： Adam Reedman

IPC: G02B6/10

CPC classification number: G01L5/0009 ,  F16C19/26 ,  F16C19/38 ,  F16C19/522 ,  F16C23/086 ,  F16C33/30 ,  F16C33/586 ,  G01D5/35303 ,  G01D5/35367 ,  G01L1/246 ,  G01M13/04 ,  G02B6/0208

Abstract: A bearing comprises a Bragg grated optical fibre to measure one or more parameters of the bearing such as load, temperature, acceleration/vibration and identification. To be able to fit as many Bragg gratings as possible, the utilization of the corresponding frequency plane output is optimized by having low bandwidth next to large bandwidth sensors in the frequency place. The corresponding physical sensors such as load sensors on a bearing will not be adjacent. Sensors in the loaded zone are giving a high bandwidth output and sensors in the un-loaded zone are giving a low bandwidth output, thus even though these are not physically adjacent, the corresponding frequency areas are adjacent by appropriate grating.

Abstract translation: 轴承包括布拉格光栅，用于测量轴承的一个或多个参数，如负载，温度，加速度/振动和识别。 为了能够适应尽可能多的布拉格光栅，相应的频率平面输出的利用通过在频率位置的大带宽传感器旁边具有低带宽来优化。 相应的物理传感器，例如轴承上的负载传感器将不会相邻。 负载区域中的传感器正在给出高带宽输出，并且未加载区域中的传感器给出低带宽输出，因此即使这些传感器物理上不相邻，相应的频率区域由适当的光栅相邻。

公开(公告)号：US20130004116A1

公开(公告)日：2013-01-03

申请号：US13174383

申请日：2011-06-30

Applicant: Eric John Ruggiero ,  Thomas Lowell Steen ,  Brian Allen Czapor

Inventor： Eric John Ruggiero ,  Thomas Lowell Steen ,  Brian Allen Czapor

IPC: G02B6/00 ,  B23P11/02

CPC classification number: G01L1/246 ,  G01L5/0009 ,  G01L5/12

Abstract: A system and method for assembling a fiber optic sensor assembly are provided. The fiber optic sensor system includes a fiber optic cable and a carrier including a first connection end and a second connection end joined together by one or more breakaway tabs, the first connection end including a first fiber attach point configured to secure a distal end of the fiber optic cable to the first connection end, the second connection end including a second fiber attach point configured to secure the fiber optic cable to the second connection end, the one or more breakaway tabs joined to the first connection end and the second connection end using a break area that is structurally weaker than the carrier and the breakaway tabs.

Abstract translation: 提供了一种用于组装光纤传感器组件的系统和方法。 光纤传感器系统包括光纤电缆和载体，其包括通过一个或多个分离突片连接在一起的第一连接端和第二连接端，第一连接端包括第一光纤附接点，其被配置为固定 光纤电缆连接到第一连接端，第二连接端包括被配置为将光纤电缆固定到第二连接端的第二光纤连接点，所述一个或多个分离片接合到第一连接端和第二连接端，使用 在结构上比载体和分离片更​​弱的断裂区域。

公开(公告)号：US20120314988A1

公开(公告)日：2012-12-13

申请号：US13589653

申请日：2012-08-20

Applicant: Brooks A. Childers ,  Daniel S. Homa

Inventor： Brooks A. Childers ,  Daniel S. Homa

IPC: G01N21/84 ,  G02B6/10

CPC classification number: E21B47/0006 ,  G01L1/246 ,  G02B6/022

Abstract: An apparatus for estimating a shape, the apparatus including: an optical fiber configured to conform to the shape and having a first core offset from a centerline of the optical fiber, the first core having an optical characteristic configured to change due to a change in shape of the optical fiber wherein a change in the optical characteristic is used to estimate the shape. A method for estimating a shape is also disclosed.

Abstract translation: 一种用于估计形状的装置，所述装置包括：光纤，被配置为符合形状并具有偏离光纤的中心线的第一芯，所述第一芯具有被配置为由于形状变化而改变的光学特性 其中使用光学特性的变化来估计形状。 还公开了一种用于估计形状的方法。

公开(公告)号：US20120274926A1

公开(公告)日：2012-11-01

申请号：US13097201

申请日：2011-04-29

Applicant: Ming-Jun Li ,  Shenping Li ,  Xiaobin Wang

Inventor： Ming-Jun Li ,  Shenping Li ,  Xiaobin Wang

IPC: H01S3/30 ,  G01N21/25

CPC classification number: G01K11/32 ,  G01L1/246

Abstract: A distributed Brillouin optical fiber sensing system employs a sensing optical fiber that supports two or more (i.e., few) guided modes. Pump light supported by one of the guided modes is used to form a dynamic Brillouin grating (DBG). Probe light supported by at least one of the other guided modes interacts with the DBG to form reflected probe light that is received and analyzed to determine a Brillouin frequency shift and a reflection location, which in turn allows for making a measurement of at least one condition along the sensing optical fiber. Supporting the pump and probe light in different guided modes results in the optical fiber sensing system having a higher spatial resolution than sensing systems where the pump light and probe light share a common guided mode.

Abstract translation: 分布式布里渊光纤感测系统采用支持两个或更多（即少数）导模的传感光纤。 由一个引导模式支持的泵浦光用于形成动态布里渊光栅（DBG）。 由其他引导模式中的至少一个支撑的探测光与DBG相互作用以形成被接收和分析的反射探测光，以确定布里渊频移和反射位置，其反过来允许进行至少一个条件的测量 沿传感光纤。 以不同的导向模式支持泵浦和探测光，导致光纤传感系统具有比泵浦光和探针光共享共同引导模式的传感系统更高的空间分辨率。

公开(公告)号：US20120257208A1

公开(公告)日：2012-10-11

申请号：US13263342

申请日：2010-10-22

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

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

IPC: G01B9/02 ,  G02B6/00 ,  G01P15/00

CPC classification number: 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

Abstract: 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.

Abstract translation: 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：US08276463B2

公开(公告)日：2012-10-02

申请号：US12825974

申请日：2010-06-29

Applicant: Valery A. Sheverev ,  Vadim Stepaniuk

Inventor： Valery A. Sheverev ,  Vadim Stepaniuk

IPC: G01L1/24

CPC classification number: G01L1/246 ,  G01B11/165 ,  G01B11/18 ,  G01D5/35316 ,  G01L1/24 ,  G01N3/24 ,  G01N13/00 ,  G01N2013/0216 ,  G01N2203/0623

Abstract: A shear stress sensor for measuring the shear force of a fluid flowing along a wall. A floating member, flush with the wall, senses a shear force of the flowing fluid. The floating member is mounted by support means to a base element that is placed in the wall, so that the floating member is flush with the wall and a shear force, sensed by the floating member, is translated via the support means to a Fiber Bragg Grating. The force acting on the Fiber Bragg Grating changes the shape and the refractive index of the Fiber Bragg Grating, thereby changing the resonant frequency of the Fiber Bragg Grating and causing a shift in the spectrum of wavelengths of light that is introduced to the Fiber Bragg Grating. This shift in the spectrum of wavelengths is representative of the shear force of the flowing fluid.

Abstract translation: 用于测量沿壁流动的流体的剪切力的剪切应力传感器。 与壁齐平的浮动构件感测流动流体的剪切力。 浮动构件通过支撑装置安装到放置在壁中的基座元件，使得浮动构件与壁齐平，并且由浮动构件检测的剪切力通过支撑装置平移到光纤布拉格 光栅 作用在光纤布拉格光栅上的力改变了光纤布拉格光栅的形状和折射率，从而改变了光纤布拉格光栅的谐振频率，并引入了引入到光纤布拉格光栅的光波长的偏移 。 波长谱中的这种偏移代表流动流体的剪切力。

公开(公告)号：US20120177319A1

公开(公告)日：2012-07-12

申请号：US13384275

申请日：2010-07-16

Applicant: Hamidreza Alemohammad ,  Ehsan Toyserkani

Inventor： Hamidreza Alemohammad ,  Ehsan Toyserkani

IPC: G02B6/00 ,  G02B1/10 ,  B05D3/06 ,  B05D5/06

CPC classification number: G01L1/246 ,  C03C25/106 ,  C03C25/1063 ,  C03C25/6208 ,  G01B11/18 ,  G01D5/35303 ,  G01K11/3206 ,  G01N21/774 ,  G02B6/02204

Abstract: A superstructure fiber Bragg gratings (FBG) by laser-assisted direct writing of on-fiber metallic films. A laser direct write method is used to fabricate periodic films of silver nanoparticles on the non-planar surface of as-fabricated FBGs. Silver films with a thickness of about 9 μm are fabricated around a Bragg grating optical fiber. The performance of the superstructure FBG is studied by applying temperature and tensile stress on the fiber. An opto-mechanical model is also developed to predict the optical response of the synthesized superstructure FBG under thermal and structural loadings. The reflectivity of sidebands in the reflection spectrum can be tuned up to 20% and 37% under thermal and structural loadings, respectively. In addition, the developed superstructure FBG is used for simultaneous measurement of multiple criteria such as force and temperature to eliminate the inherent limitation of regular FBGs in multi-parameter sensing.

Abstract translation: 通过激光辅助直接写入光纤金属膜的上层结构光纤布拉格光栅（FBG）。 激光直写方法用于在制造的FBG的非平面表面上制造银纳米颗粒的周期性膜。 围绕布拉格光栅光纤制造厚度约9μm的银膜。 通过对纤维施加温度和拉伸应力来研究上层建筑FBG的性能。 还开发了一种光机械模型，以预测合成上层结构FBG在热和结构载荷下的光学响应。 反射谱中边带的反射率分别可以在热和结构负载下调整高达20％和37％。 此外，开发的上层结构FBG用于同时测量诸如力和温度的多个标准，以消除多参数感测中常规FBG的固有限制。

公开(公告)号：US08215179B2

公开(公告)日：2012-07-10

申请号：US12598105

申请日：2008-05-19

Applicant: Brigitte Ohl ,  Sylvie Teyssier ,  Joan Aymami

Inventor： Brigitte Ohl ,  Sylvie Teyssier ,  Joan Aymami

IPC: G01L1/24

CPC classification number: G01B11/16 ,  G01D5/35316 ,  G01L1/246 ,  G01L5/0004 ,  G01M11/086

Abstract: An integrated device for monitoring an electrically insulating part, the device having an optic fiber that includes at least one Bragg grating, the electrically insulating part being a composite material with a thermosetting matrix, and the optic fiber including a polyimide mechanical protection sleeve made. The device is integrated into an electrically insulating part or an electrically insulating enclosure. The invention also includes a method for manufacturing the device including positioning in a mold part of an optic fiber that includes at least one Bragg grating, and molding of the electrically insulating part.

Abstract translation: 一种用于监测电绝缘部件的集成装置，所述装置具有包括至少一个布拉格光栅的光纤，所述电绝缘部分是具有热固性基体的复合材料，并且所述光纤包括制成的聚酰亚胺机械保护套。 该器件集成到电绝缘部件或电绝缘外壳中。 本发明还包括一种用于制造该装置的方法，包括定位在包括至少一个布拉格光栅的光纤的模具部分中，以及模制电绝缘部分。