公开(公告)号：US08744782B2

公开(公告)日：2014-06-03

申请号：US12947066

申请日：2010-11-16

Applicant: Xin Chen ,  Ming-Jun Li ,  Anping Liu ,  Daniel Aloysius Nolan

Inventor： Xin Chen ,  Ming-Jun Li ,  Anping Liu ,  Daniel Aloysius Nolan

IPC: G01L11/02 ,  G01L11/00 ,  G01K11/00 ,  G01K11/20

CPC classification number: G01L1/243 ,  G01K11/32 ,  G01K2011/322 ,  G01L1/242

Abstract: A system for simultaneously determining strain and temperature characteristics of an object comprising: (i) at least one optical fiber having at least two Brillouin peaks; (ii) at least one connector securing the optical fiber to the object to be monitored; (iii) a laser positioned to provide laser light to said at least one optical fiber; (iv) a device measuring frequencies of said at least two Brillouin peaks, and determining frequency shifts of said at least two Brillouin peaks for said at least one optical fiber along the length of fiber; and (v) a system calculating strain and temperature characteristics along said fiber, based on the coefficients of strain and temperature as well as the measured Brillouin frequency shifts for said optical fiber along the length of said optical fiber.

Abstract translation: 一种用于同时确定物体的应变和温度特性的系统，包括：（i）至少一个具有至少两个布里渊峰的光纤; （ii）至少一个将光纤固定到待监测对象的连接器; （iii）定位成向所述至少一个光纤提供激光的激光器; （iv）测量所述至少两个布里渊峰的频率的装置，以及确定沿所述光纤长度的所述至少一个光纤的所述至少两个布里渊峰的频移; 以及（v）基于应变和温度的系数以及所述光纤沿着所述光纤的长度测量的布里渊频移的系统来计算沿着所述光纤的应变和温度特性的系统。

公开(公告)号：US08654317B2

公开(公告)日：2014-02-18

申请号：US12874098

申请日：2010-09-01

Applicant: Masaki Kunigami ,  Nobuhiro Fueki

Inventor： Masaki Kunigami ,  Nobuhiro Fueki

IPC: G01B11/16 ,  G02B6/00 ,  G01L1/24 ,  G01M11/08

CPC classification number: G01B11/165 ,  G01L1/242 ,  G01L1/243 ,  G01L1/246 ,  G01M11/086

Abstract: In an FBG (Fiber Bragg Grating) sensor, a stress direction converter includes a flat portion to which stresses are applied from the exterior, and stress transmitting sections that are bridged from the flat portion to an optical fiber cable. An inclined portion of the optical fiber cable, through which reflected light reflected by gratings is transmitted, is disposed along an inclined section that makes up one of the stress transmitting sections.

Abstract translation: 在FBG（光纤布拉格光栅）传感器中，应力方向转换器包括从外部施加应力的平坦部分和从平坦部分桥接到光纤电缆的应力传递部分。 通过光纤反射的反射光透过的光纤电缆的倾斜部分沿构成其中一个应力传递部分的倾斜部分设置。

公开(公告)号：US20140013808A1

公开(公告)日：2014-01-16

申请号：US14023031

申请日：2013-09-10

Applicant: Jeong I. KIM ,  Daniel KOMINSKY ,  Gary PICKRELL ,  Ahmad SAFAAI-JAZI ,  Roger STOLEN ,  Anbo WANG

Inventor： Jeong I. KIM ,  Daniel KOMINSKY ,  Gary PICKRELL ,  Ahmad SAFAAI-JAZI ,  Roger STOLEN ,  Anbo WANG

IPC: C03B37/027

CPC classification number: G02B6/02385 ,  C03B37/01297 ,  C03B37/016 ,  C03B37/02781 ,  C03B2203/14 ,  C03B2203/42 ,  C03C11/007 ,  C03C13/04 ,  G01L1/243 ,  G02B6/02295 ,  G02B6/02333 ,  G02B6/02338 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/032

Abstract: A random array of holes is created in an optical fiber by gas generated during fiber drawing. The gas forms bubbles which are drawn into long, microscopic holes. The gas is created by a gas generating material such as silicon nitride. Silicon nitride oxidizes to produce nitrogen oxides when heated. The gas generating material can alternatively be silicon carbide or other nitrides or carbides. The random holes can provide cladding for optical confinement when located around a fiber core. The random holes can also be present in the fiber core. The fibers can be made of silica. The present random hole fibers are particularly useful as pressure sensors since they experience a large wavelength dependant increase in optical loss when pressure or force is applied.

Abstract translation: 在纤维拉伸中产生的气体在光纤中产生随机阵列的孔。 气体形成气泡，其被吸入长的微观孔中。 气体由氮化硅等气体发生材料形成。 氮化硅在加热时氧化生成氮氧化物。 气体发生材料可以替代地是碳化硅或其它氮化物或碳化物。 当位于纤维芯周围时，随机孔可以提供用于光学限制的包层。 随机孔也可以存在于纤维芯中。 纤维可以由二氧化硅制成。 当前的随机孔纤维作为压力传感器是特别有用的，因为当施加压力或力时，它们经历大的波长依赖性的光学损失增加。

公开(公告)号：US20110229071A1

公开(公告)日：2011-09-22

申请号：US13129481

申请日：2010-04-22

Applicant: Andre R. Vincelette ,  Jason S. Kiddy ,  John B. Niemczuk ,  Christopher S. Baldwin ,  Paul Lefebvre

Inventor： Andre R. Vincelette ,  Jason S. Kiddy ,  John B. Niemczuk ,  Christopher S. Baldwin ,  Paul Lefebvre

IPC: E21B47/06

CPC classification number: E21B47/06 ,  E21B43/2406 ,  E21B43/2408 ,  E21B47/123 ,  G01L1/242 ,  G01L1/243 ,  G01L1/247 ,  G02B6/504

Abstract: A sensor arrangement using an optical fiber and methodologies for performing an analysis of a subterranean formation, such as a subterranean formation containing a hydrocarbon based fluid. The sensor arrangement may be used to measure one or more physical parameters, such as temperature and/or pressure, at a multiplicity of locations in the subterranean reservoir. The sensor arrangement may comprise a sensor array comprising an elongated outer casing for insertion in the subterranean formation and into a fluid in the subterranean formation. The sensor array may comprise an optical fiber defining an optical path that links one or more temperature sensors and one or more pressure sensors and transports measurement data generated by the temperature and pressure sensors. A data processing system may be connected to the sensor array to receive measurements from the sensor array and to compute one or more values of a property of an extraction installation operating on the subterranean formation.

Abstract translation: 使用光纤的传感器装置和用于对地下地层进行分析的方法，例如含有烃基流体的地层。 传感器装置可以用于在地下储层中的多个位置处测量一个或多个物理参数，例如温度和/或压力。 传感器装置可以包括传感器阵列，该传感器阵列包括用于插入到地下地层中的细长的外壳，以及地层中的流体。 传感器阵列可以包括限定连接一个或多个温度传感器和一个或多个压力传感器并传送由温度和压力传感器产生的测量数据的光路的光纤。 数据处理系统可以连接到传感器阵列以接收来自传感器阵列的测量值，并且计算在地层上操作的提取装置的性质的一个或多个值。

公开(公告)号：US20110102766A1

公开(公告)日：2011-05-05

申请号：US12874098

申请日：2010-09-01

Applicant: Masaki Kunigami ,  Nobuhiro Fueki

Inventor： Masaki Kunigami ,  Nobuhiro Fueki

IPC: G02B6/00 ,  G01B11/16 ,  G01L1/24

CPC classification number: G01B11/165 ,  G01L1/242 ,  G01L1/243 ,  G01L1/246 ,  G01M11/086

Abstract: In an FBG (Fiber Bragg Grating) sensor, a stress direction converter includes a flat portion to which stresses are applied from the exterior, and stress transmitting sections that are bridged from the flat portion to an optical fiber cable. An inclined portion of the optical fiber cable, through which reflected light reflected by gratings is transmitted, is disposed along an inclined section that makes up one of the stress transmitting sections.

Abstract translation: 在FBG（光纤布拉格光栅）传感器中，应力方向转换器包括从外部施加应力的平坦部分和从平坦部分桥接到光纤电缆的应力传递部分。 通过光纤反射的反射光透过的光纤电缆的倾斜部分沿构成其中一个应力传递部分的倾斜部分设置。

公开(公告)号：US20110044577A1

公开(公告)日：2011-02-24

申请号：US12855424

申请日：2010-08-12

Applicant: Nikhil Gupta ,  Nguyen Quang Nguyen

Inventor： Nikhil Gupta ,  Nguyen Quang Nguyen

IPC: G02B6/00

CPC classification number: G01B11/16 ,  G01L1/243 ,  G01M5/0033 ,  G01M5/0091 ,  Y02B10/30

Abstract: An extensometer having a loop of a single-mode optical fiber. At least two points of the loop are attached to desired locations on a specimen. Light is transmitted through the loop and the transmitted optical power is measured by a photodetector. The deformation of the specimen causes the size and shape of the loop to change, which changes the transmitted optical power. The change in optical power is related to extension or compression using calibration curves. The sensor works on the principle of transmitted power modulation through the curved section.

Abstract translation: 具有单模光纤回路的引伸计。 循环的至少两个点附着到样本上的期望位置。 光通过环路传输，透射光功率由光电检测器测量。 样品的变形导致环路的尺寸和形状发生变化，这会改变传输的光功率。 光功率的变化与使用校准曲线的扩展或压缩有关。 传感器的工作原理是透过功率调制通过弯曲部分。

公开(公告)号：US20090157358A1

公开(公告)日：2009-06-18

申请号：US12214896

申请日：2008-06-23

Applicant: Hyeung-Yun Kim

Inventor： Hyeung-Yun Kim

IPC: G21C17/00

CPC classification number: G01M5/0033 ,  G01L1/16 ,  G01L1/243 ,  G01M5/0066 ,  G01M5/0091 ,  G01M11/085

Abstract: Systems for diagnosing/monitoring structural health conditions of objects. The system, which monitors structural health conditions by use of a plurality of patch sensors attached to an object, includes at least one bridge box and at least one relay switch array module having a plurality of switches. Each of the patch sensors is adapted to perform at least one of generating a wave upon receipt of an actuator signal and developing a sensor signal. The bridge box includes an analogue-to-digital converter (ADC) for converting the sensor signal to a digital signal. The switches are adapted to establish a channel between a selected one of the patch sensors and the ADC.

Abstract translation: 用于诊断/监测物体结构健康状况的系统。 通过使用附接到对象的多个贴片传感器监视结构健康状况的系统包括至少一个桥接盒和至少一个具有多个开关的继电器开关阵列模块。 每个贴片传感器适于执行在接收到致动器信号并产生传感器信号时产生波的至少一个。 桥接盒包括用于将传感器信号转换为数字信号的模拟 - 数字转换器（ADC）。 开关适于在所选择的贴片传感器和ADC之间建立通道。

公开(公告)号：US07359586B2

公开(公告)日：2008-04-15

申请号：US11164113

申请日：2005-11-10

Applicant: Gennadii Ivtsenkov

Inventor： Gennadii Ivtsenkov

IPC: G02B6/00

CPC classification number: G01H9/004 ,  G01D5/344 ,  G01D5/35351 ,  G01F1/206 ,  G01F1/28 ,  G01F1/80 ,  G01L1/243 ,  G01L9/0007 ,  G01L9/0032 ,  G01L9/0039 ,  G01P15/093 ,  G01P15/18

Abstract: A fiber optic polarimetric strain sensor and associated data acquisition system capable of all-optical measurements of physical parameters, such as structural strain, gas and liquid pressure, acceleration and vibration, gas and liquid flow rate, and force without fire and explosion hazards associated with conventional strain gage technologies, such as resistance foil strain gages. The polarimetric strain sensor houses a sensitive element—a length of single-mode optic fiber—changing polarization of a single-mode optical signal running in the fiber under some mechanical effects, specifically twisting and radial compressing. A multi-channel time division multiplexing data acquisition system indicates the polarization state deviation caused by the strain, so allow measuring the parameters. The invention may be embodied for measurements of any phenomenon that can be transformed in stress on an optical fiber.

Abstract translation: 一种光纤偏振应变传感器和相关的数据采集系统，能够对物理参数进行全光学测量，如结构应变，气体和液体压力，加速度和振动，气体和液体流速以及与此相关的无火灾和爆炸危险的力 常规应变计技术，如电阻箔应变计。 偏振应变传感器容纳一个敏感元件 - 在一些机械效应下，特别是扭曲和径向压缩，在光纤中运行的单模光信号的单模光纤变化极化的长度。 多通道时分复用数据采集系统表示由应变引起的极化状态偏差，因此可以测量参数。 本发明可以被实施用于测量可以在光纤上应力变化的任何现象。

公开(公告)号：US20070230860A1

公开(公告)日：2007-10-04

申请号：US11469500

申请日：2006-09-01

Applicant: Phillip Kornreich ,  Tracee Jamison ,  Dawit Negussey

Inventor： Phillip Kornreich ,  Tracee Jamison ,  Dawit Negussey

IPC: G02B6/00

CPC classification number: G01L1/242 ,  G01B11/18 ,  G01D5/35345 ,  G01D5/3538 ,  G01L1/243 ,  G01M11/083 ,  G01M11/088 ,  G02B6/03622 ,  G02B6/03694

Abstract: The present invention pertains to Lithium-Niobate fiber optical sensors (“LNCF”) and systems for detection of load or pressure and strain or deformation changes that occur in a host material. The host material can be a component of a system, such as a part of a bridge, or a selected material, such as a geofoam, that provides a protective and compliant medium to which the LNCF would be securely attached.

Abstract translation: 本发明涉及铌酸锂纤维光学传感器（“LNCF”）和用于检测主体材料中发生的载荷或压力和应变或变形变化的系统。 主体材料可以是系统的部件，例如桥的一部分，或选择的材料，例如地布泡沫，其提供LNCF将被牢固地附接到的保护性和兼容性介质。

公开(公告)号：US20070180891A1

公开(公告)日：2007-08-09

申请号：US11649118

申请日：2007-01-03

Applicant: Tomiya Abe ,  Akira Suzuki ,  Motomi Iyoda ,  Sotaro Narita ,  Yukio Nakagawa

Inventor： Tomiya Abe ,  Akira Suzuki ,  Motomi Iyoda ,  Sotaro Narita ,  Yukio Nakagawa

IPC: G01N3/00 ,  G01M7/00

CPC classification number: B60R21/0136 ,  B60R2021/01095 ,  G01L1/243

Abstract: An impulse sensor having: a long elastic structure formed of a material to be deformed according to an impulse; a cable insertion hole formed in the elastic structure; and a cable inserted through the cable insertion hole, the cable being operable to cause a variation in propagation energy due to its deformation. A distance from a central line of the cable to an outer surface of the elastic structure is varied in a longitudinal direction of the elastic structure.

Abstract translation: 一种脉冲传感器，具有：由根据脉冲变形的材料形成的长弹性结构; 在弹性结构中形成的电缆插入孔; 以及通过电缆插入孔插入的电缆，电缆可操作以由于其变形而引起传播能量的变化。 从电缆的中心线到弹性结构的外表面的距离在弹性结构的纵向方向上变化。