公开(公告)号：US08977332B1

公开(公告)日：2015-03-10

申请号：US14231236

申请日：2014-03-31

Applicant: ViOptix, Inc. ,  The Regents of the University of California

Inventor： Jimmy Jian-min Mao ,  Robert E. Lash ,  Shane Burch

IPC: A61B5/00 ,  A61B1/32 ,  A61B17/02 ,  A61B5/1455

CPC classification number: A61B17/02 ,  A61B5/1455 ,  A61B5/14551 ,  A61B17/0218 ,  A61B2017/00022 ,  G01L1/242 ,  G01L5/0033

Abstract: A retractor device has an oximeter sensor at its tip, which allows measuring of oxygen saturation of a tissue being retracted by the retractor. The retractor device also has a force sensor which can measure an amount of force that is applied to the retracted tissue by the tip of the retractor device. The tip includes one or more openings for at least one source and detector. A specific implementation is a spinal nerve root retractor with an oximeter sensor and a force sensor.

Abstract translation: 收缩器装置在其尖端处具有血氧计传感器，其允许测量由牵开器缩回的组织的氧饱和度。 牵开器装置还具有力传感器，其能够测量由牵开器装置的尖端施加到缩回的组织的力的量。 尖端包括用于至少一个源和检测器的一个或多个开口。 具体实施方式是具有血氧计传感器和力传感器的脊神经根牵开器。

公开(公告)号：US08891070B2

公开(公告)日：2014-11-18

申请号：US13821044

申请日：2011-11-10

Applicant: Nicky Weppenaar ,  Bo Asp Møller Andersen

Inventor： Nicky Weppenaar ,  Bo Asp Møller Andersen

IPC: G01B11/16 ,  F16L55/00 ,  E21B47/00 ,  E21B47/01 ,  F16L11/08 ,  F16L11/12 ,  G01L1/24

CPC classification number: F16L55/00 ,  E21B47/0006 ,  E21B47/01 ,  F16L11/081 ,  F16L11/12 ,  G01L1/242

Abstract: The invention relates to a flexible pipe system comprising an unbonded flexible pipe having a center axis and a sensor system at least partly integrated in the unbonded flexible pipe. The unbonded flexible pipe has a length and a longitudinal direction along the length and comprises an inner sealing sheath and at least a first sensor containing armoring layer. The first sensor containing armoring layer comprises a plurality of elongated armoring elements arranged around the internal sealing sheath. The sensor system comprises: a plurality of optical fiber sensor units, at least one light pump for the optical fiber sensor units, a data collecting unit, and a computing unit. The optical fiber sensor units are optically connected to the data collecting unit, and the data collecting unit is in data communication with the computing unit. At least one of the elongated armoring elements of the first sensor containing armoring layer is a sensor containing element. The sensor containing elements each having integrated therein at least a part of one or more of the optical fiber sensor units, the optical fiber sensor units of the first sensor containing armoring layer extending along a monitoring length section of the flexible pipe, and the optical fiber sensor units being arranged to measure a change in strain of the respective sensor containing elements. The invention further relates to a method of detecting a break in an elongated armoring element.

Abstract translation: 本发明涉及一种柔性管道系统，其包括具有中心轴线的未连接的柔性管道和至少部分地集成在未粘合的柔性管道中的传感器系统。 未粘合的柔性管具有沿长度的长度方向和纵向方向，并且包括内部密封护套和至少包含铠装层的第一传感器。 包含铠装层的第一传感器包括围绕内部密封护套设置的多个细长铠装元件。 传感器系统包括：多个光纤传感器单元，用于光纤传感器单元的至少一个光泵，数据采集单元和计算单元。 光纤传感器单元光学连接到数据采集单元，数据采集单元与计算单元进行数据通信。 包含铠装层的第一传感器的至少一个细长铠装元件是传感器容纳元件。 所述传感器包含各自内置有一个或多个光纤传感器单元的至少一部分的元件，所述第一传感器的光纤传感器单元包含沿着柔性管的监视长度部分延伸的铠装层，以及所述光纤 传感器单元布置成测量相应的传感器容纳元件的应变变化。 本发明还涉及一种检测细长铠装元件断裂的方法。

公开(公告)号：US08864655B2

公开(公告)日：2014-10-21

申请号：US13603135

申请日：2012-09-04

Applicant: Bhaskar S. Ramamurthy ,  Neal A. Tanner ,  Robert G. Younge ,  Randall L. Schlesinger ,  Eric Udd

Inventor： Bhaskar S. Ramamurthy ,  Neal A. Tanner ,  Robert G. Younge ,  Randall L. Schlesinger ,  Eric Udd

IPC: A61B1/01 ,  A61B1/04 ,  A61B1/00 ,  A61B5/00 ,  A61B18/08 ,  A61B8/00 ,  A61B5/06 ,  A61B6/12 ,  G01B11/16 ,  G01L1/24 ,  A61B8/08 ,  A61B19/00

CPC classification number: G01B11/16 ,  A61B1/00004 ,  A61B1/00013 ,  A61B1/00045 ,  A61B1/00057 ,  A61B1/00165 ,  A61B1/0017 ,  A61B5/0059 ,  A61B5/0064 ,  A61B5/06 ,  A61B5/065 ,  A61B5/066 ,  A61B5/4887 ,  A61B5/7285 ,  A61B6/12 ,  A61B8/00 ,  A61B8/48 ,  A61B18/082 ,  A61B34/20 ,  A61B34/30 ,  A61B34/37 ,  A61B34/71 ,  A61B34/77 ,  A61B90/39 ,  A61B90/96 ,  A61B90/98 ,  A61B2017/00725 ,  A61B2034/2061 ,  A61B2034/301 ,  A61B2034/715 ,  A61B2034/741 ,  A61B2090/374 ,  A61B2090/376 ,  A61B2090/378 ,  A61M2025/0166 ,  G01B11/165 ,  G01L1/242

Abstract: An instrument system that includes an elongate body, an optical fiber, and a controller is provided. The optical fiber is operatively coupled to the elongate body and has a plurality of strain sensors provided on the optical fiber. Each of the plurality of strain sensors has a reflectivity, wherein one of the plurality of strain sensors has a different reflectivity than another one of the plurality of strain sensors. The controller is operatively coupled to the optical fiber and adapted to: receive one or more signals from the plurality of strain sensors; and determine a position of the elongate body based on the one or more signals.

Abstract translation: 提供一种包括细长体，光纤和控制器的仪器系统。 光纤可操作地耦合到细长主体并且具有设置在光纤上的多个应变传感器。 多个应变传感器中的每一个具有反射率，其中多个应变传感器中的一个具有与多个应变传感器中的另一个不同的反射率。 控制器可操作地耦合到光纤并且适于：从多个应变传感器接收一个或多个信号; 并且基于所述一个或多个信号确定所述细长体的位置。

公开(公告)号：US20140300900A1

公开(公告)日：2014-10-09

申请号：US14357323

申请日：2012-11-19

Applicant: Hakusan Corporation

Inventor： Kazumasa Tsukada

IPC: G01B9/02

CPC classification number: G01B9/02023 ,  G01D5/35335 ,  G01H9/004 ,  G01L1/242

Abstract: An input of an optical interferometer is a periodical optical pulse. A phase of a first half and a latter half of a reference pulse is a 90 degree (independently orthogonal) phase difference. Two interferometric outputs i1 and i2, where the phase difference is 90 degrees from each other, are obtained by interference of the reference pulse and the signal pulse. θ is calculated by referring the amplitude of reference pulse and the signal pulse to remove the light intensity fluctuations. Two values of cos θ1 and cos θ2 are calculated and positions are determined on the cosine curve by obtaining θ1 and θ2 values. Δθ1 and Δθ2, which are the phase increment or decrement of both θ1 and θ2 in a T period, are summed and becomes the sensor output signal that removes the measurement range limitation of ±90 degrees (a half wavelength of light) of the light phase.

Abstract translation: 光干涉仪的输入是周期性的光脉冲。 参考脉冲的前半部和后半部的相位为90度（独立正交）的相位差。 通过参考脉冲和信号脉冲的干扰获得相位差为90度的两个干涉式输出i1和i2。 ＆thetas; 通过参考参考脉冲和信号脉冲的幅度来计算，以消除光强波动。 计算两个cos和θ的值; 1和cos＆thetas; 2，并通过获得＆thetas; 1和＆thetas; 2值在余弦曲线上确定位置。 ＆Dgr;＆thetas; 1和＆Dgr;＆amp; thetas; 2，它们是两者的相位递增或递减; 1和＆amp; t;在T期间的2相加，成为除去测量范围限制为±90的传感器输出信号 光相的度（光的一半波长）。

公开(公告)号：US20140285793A1

公开(公告)日：2014-09-25

申请号：US13847204

申请日：2013-03-19

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： Mikko JAASKELAINEN ,  Ian B. MITCHELL

IPC: G01L1/24 ,  G01V8/10

CPC classification number: G01L1/242 ,  E21B47/00 ,  G01H9/004 ,  G01K11/32 ,  G01K2011/322 ,  G01V8/16 ,  G01V2210/1429

Abstract: A downhole optical sensing system can include an optical fiber positioned in the well, the optical fiber including multiple cores, and one of the cores having a Brillouin scattering coefficient which is different from another one of the cores. A method of sensing strain and temperature as distributed along an optical fiber can include measuring Brillouin scattering in a core of the optical fiber disposed in a well, and measuring Brillouin scattering in another core of the optical fiber disposed in the well, the optical fiber cores being exposed to a same strain and temperature distribution in the well.

Abstract translation: 井下光学感测系统可以包括位于井中的光纤，光纤包括多个芯，并且其中一个芯具有不同于另一芯的布里渊散射系数。 感测沿着光纤分布的应变和温度的方法可以包括测量布置在阱中的光纤的芯中的布里渊散射，以及测量布置在阱中的光纤的另一芯中的布里渊散射，光纤芯 在井中暴露于相同的应变和温度分布。

公开(公告)号：US20140147074A1

公开(公告)日：2014-05-29

申请号：US14169969

申请日：2014-01-31

Applicant: Weatherford/Lamb, Inc.

Inventor： John L. MAIDA, JR. ,  Alan D. KERSEY

IPC: G01L1/24

CPC classification number: G02B6/02314 ,  E21B47/123 ,  G01L1/242 ,  G01L1/245 ,  G01L1/246 ,  G01L11/025 ,  G02B6/021 ,  G02B6/022 ,  G02B6/02338 ,  G02B6/024 ,  G02B6/028 ,  G02B6/0281 ,  G02B6/262

Abstract: A side-hole optical cane for measuring pressure and/or temperature is disclosed. The side-hole cane has a light guiding core containing a sensor and a cladding containing symmetrical side-holes extending substantially parallel to the core. The side-holes cause an asymmetric stress across the core of the sensor creating a birefringent sensor. The sensor, preferably a Bragg grating, reflects a first and second wavelength each associated with orthogonal polarization vectors, wherein the degree of separation between the two is proportional to the pressure exerted on the core. The side-hole cane structure self-compensates and is insensitive to temperature variations when used as a pressure sensor, because temperature induces an equal shift in both the first and second wavelengths. Furthermore, the magnitude of these shifts can be monitored to deduce temperature, hence providing the side-hole cane additional temperature sensing capability that is unaffected by pressure. Additionally, the side-hole cane can be used to measure a differential pressure between a first pressure ported to the side-holes and a second external pressure.

Abstract translation: 公开了用于测量压力和/或温度的侧孔光学手杖。 侧孔拐杖具有包含传感器和包含基本上平行于芯延伸的对称侧壁的包层的导光芯。 侧孔在传感器的核心上产生不对称应力，产生双折射传感器。 传感器，优选布拉格光栅，反射与正交偏振矢量相关联的第一和第二波长，其中两者之间的分离度与施加在芯上的压力成比例。 当用作压力传感器时，侧孔手杖结构自我补偿并且对温度变化不敏感，因为温度在第一和第二波长两者中都产生相等的移动。 此外，可以监测这些位移的大小以推断温度，从而提供不受压力影响的侧孔拐角附加温度检测能力。 此外，侧孔手杖可用于测量端口与侧孔的第一压力和第二外部压力之间的差压。

公开(公告)号：US08655117B2

公开(公告)日：2014-02-18

申请号：US13046648

申请日：2011-03-11

Applicant: Denis Donlagic ,  Simon Pevec ,  Edvard Cibula

Inventor： Denis Donlagic ,  Simon Pevec ,  Edvard Cibula

IPC: G02B6/26 ,  G02B6/42

CPC classification number: C03B37/14 ,  G01B1/00 ,  G01B11/18 ,  G01B2290/25 ,  G01D5/268 ,  G01L1/242 ,  G01L11/025

Abstract: Optical fiber sensors adapted to measure strain or pressure are disclosed. The optical fiber sensor has a lead-in optical fiber having an end surface at a forward end, and a first optical element having a body with an outer dimension, Do, a front end surface coupled to the lead-in optical fiber, a pedestal including a retracted surface that is spaced from the front end surface, the retracted surface at least partially defining an optical cavity, a gutter surrounding the pedestal, the gutter having a gutter depth defining an active region of length, L, the first optical element further exhibiting L/Do≧0.5. Also provided are systems including the optical fiber sensor, and methods for manufacturing and using the optical fiber sensor. Numerous other aspects are provided.

Abstract translation: 公开了适于测量应变或压力的光纤传感器。 光纤传感器具有在前端具有端面的引入光纤，以及具有外部尺寸的主体Do的第一光学元件，连接到引入光纤的前端表面，基座 包括与所述前端表面间隔开的缩回表面，所述缩回表面至少部分地限定光学腔，围绕所述基座的沟槽，所述沟槽具有限定长度有效区域L的沟槽深度，所述第一光学元件进一步 显示L / Do> = 0.5。 还提供了包括光纤传感器的系统，以及用于制造和使用光纤传感器的方法。 提供了许多其他方面。

公开(公告)号：US20140002275A1

公开(公告)日：2014-01-02

申请号：US13742849

申请日：2013-01-16

Applicant: NATIONAL APPLIED RESEARCH LABORATORIES

Inventor： Zheng-Kuan Lee

IPC: G08C19/00

CPC classification number: G08C19/00 ,  G01B11/18 ,  G01F23/00 ,  G01F23/0007 ,  G01F23/2921 ,  G01L1/242 ,  G01M5/0008 ,  G01M5/0041 ,  G01M5/0091 ,  G02B6/022

Abstract: The present invention provides an integrated system of full optical complete bridge safety monitoring with speech warming for smart phones. The Integrated system of full optical complete bridge safety monitoring includes a stabilizing device, optical sensing device and communication device. The basic structure involves cable and optical fiber connecting two ends and joined by heat shrink tubes. A measuring segment is located between two heat shrink tubes. The stabilizing device provides a pre-determined tensile strength to the measuring segment. The optical fiber sensing device detects a response via a Fiber Bragg grating in the optical fiber's measuring segment. When the measuring segment receives a response, it changes from first phase to second phase and creates a signal change from the reflected signals. Signal processing device converts the signal changes to physical parameters. The communication device sends warning signals to users. Warning signals are sent to users' smart phones, to proactively inform the bridge's safety status with speeches.

Abstract translation: 本发明提供了一种用于智能电话的全光完整桥安全监控与语音加热的集成系统。 全光全桥安全监控综合系统包括稳定装置，光传感装置及通讯装置。 基本结构涉及电缆和光纤连接两端，并通过热缩管连接。 测量段位于两个热缩管之间。 稳定装置向测量段提供预定的拉伸强度。 光纤感测装置通过光纤测量段中的光纤布拉格光栅检测响应。 当测量段接收到响应时，它从第一相变为第二相，并从反射信号中产生信号变化。 信号处理设备将信号变化转换为物理参数。 通信设备向用户发送警告信号。 警告信号发送给用户的智能手机，主动通知演讲中桥的安全状态。

公开(公告)号：US20140002222A1

公开(公告)日：2014-01-02

申请号：US14015232

申请日：2013-08-30

Applicant: Weidmann Electrical Technology Inc.

Inventor： David J. Woodcock

IPC: G01L1/24 ,  H01F27/40

CPC classification number: G01L1/242 ,  H01F27/402

Abstract: A clamping force sensor assembly for a transformer includes at least one sensor disposed within a casing. The design and configuration of the sensor assembly is such that it accurately measures clamping force values placed on the windings, without adversely impacting the operation of the transformer and with the ability to continue operating under electrical and thermal changes within the transformer. The sensor assembly can include loading members that distribute the pressure evenly over the casing that contains the sensor. The output of the sensor can indicate to an operator the extent of pressure changes experienced by the transformer windings. The output can be coupled with a process by which the damage to or the possibility of failure of the transformer is readily evaluated.

Abstract translation: 用于变压器的夹紧力传感器组件包括设置在壳体内的至少一个传感器。 传感器组件的设计和配置使得其精确地测量放置在绕组上的夹紧力值，而不会对变压器的操作产生不利影响，并具有在变压器内的电和热变化下继续运行的能力。 传感器组件可以包括将压力均匀地分布在包含传感器的壳体上的装载构件。 传感器的输出可以向操作员指示变压器绕组所经受的压力变化的程度。 输出可以与容易评估变压器的损坏或故障可能性的过程耦合。

公开(公告)号：US20130308682A1

公开(公告)日：2013-11-21

申请号：US13981607

申请日：2012-01-26

Applicant: Moshe Tur ,  Yair Peled

Inventor： Moshe Tur ,  Yair Peled

IPC: G01K11/32

CPC classification number: G01K11/32 ,  G01D5/35303 ,  G01D5/35364 ,  G01K2011/322 ,  G01L1/242 ,  G01M11/319 ,  G01M11/39

Abstract: A method of distributed and dynamical Brillouin sensing in optical fibers is provided herein. The method includes the following stages: deriving average characteristics of an optical fiber along its length; generating a variable frequency probe signal, such that the variable frequency is tailored to match, at specified points along the fiber, the respective average characteristics; injecting the variable frequency probe signal to a first end of the optical fiber and a periodic pulse signal to a second end of the optical fiber, wherein the injecting is synchronized such that a stimulated Brillouin scattering is carried out at each one of the specified points along the optical fiber, such that a frequency difference between the probe signal and the pump signal matches the average characteristics of the fiber; and measuring occurrences of the stimulated Brillouin scattering, to yield data indicative of strain and temperature at all points along the optical fiber.

Abstract translation: 本文提供了光纤中分布式和动态布里渊传感的方法。 该方法包括以下阶段：导出沿其长度的光纤的平均特性; 产生可变频率探测信号，使得可变频率被调整为在沿着光纤的特定点处匹配相应的平均特性; 将所述可变频率探测信号注入所述光纤的第一端，并将周期性脉冲信号注入所述光纤的第二端，其中所述注入被同步，使得在所述特定点中的每一个处执行受激布里渊散射 光纤，使得探测信号和泵浦信号之间的频率差与光纤的平均特性匹配; 并测量受激布里渊散射的发生，以产生指示沿着光纤的所有点处的应变和温度的数据。