公开(公告)号：EP3372827A1

公开(公告)日：2018-09-12

申请号：EP18160181.6

申请日：2018-03-06

Applicant: Hitachi, Ltd.

Inventor： UETA, Ryo ,  SAEKI, Mitsuru

IPC: F03D1/06 ,  F03D17/00 ,  G01L1/24

CPC classification number: F03D17/00 ,  F03D1/0675 ,  F05B2240/2211 ,  F05B2240/912 ,  F05B2270/804 ,  F05B2270/808 ,  F05B2280/6003 ,  G01B11/18 ,  G01L1/242 ,  G01L1/246 ,  G01L1/26 ,  G01M5/0016 ,  G01N21/95 ,  G01N2201/0873 ,  G01N2201/088 ,  G02B6/02076 ,  G02B6/4432 ,  Y02E10/721 ,  Y02E10/726 ,  Y02E10/728

Abstract: To provide a wind turbine blade or a wind power generation device provided with a strain detecting system having a high level of soundness . The blade 4 includes a structural material constituting the blade 4, plural optical fibers 15A and 15B arranged within or on a surface of the structural material, and an optical cable 16A that connects adjacent ones of the optical fiber sensors 15A to 15G, and a length of the optical cable 16A is longer than the shortest distance between the adjacent optical fiber sensors 15A to 15G.

公开(公告)号：EP3298386A1

公开(公告)日：2018-03-28

申请号：EP16722681.0

申请日：2016-05-16

Applicant: INL - International Iberian Nanotechnology Laboratory

Inventor： VIEGAS, Diana ,  QUEIRÓS, Raquel ,  NIEDER, Jana ,  FÉRNANDEZ, Maria Teresa ,  ESPIÑA, Begoña ,  FREITAS, Paolo ,  MONTELIUS, Lars

IPC: G01N21/552 ,  G01N21/65 ,  G01N21/77 ,  G01N33/543

CPC classification number: G01N21/554 ,  G01N21/553 ,  G01N21/658 ,  G01N21/7703 ,  G01N2021/7716 ,  G01N2201/088 ,  G01N2201/0886

Abstract: The present invention relates to an optical fibre for use in a system for detection of one or more compounds in a fluid. The optical fibre (100, 101, 202) comprising at least two binding portions (102, 104, 118, 210, 211, 212) separated from each other along the longitudinal direction (106) of the optical fibre (100, 101, 202), wherein each of the at least two binding portions (102, 104, 118, 210, 211, 212) comprises a plasmonic structure (120) and/or a SERS structure (121), and a binding material (126) for binding of one or more compounds, wherein the optical fibre (100, 101, 202) is arranged for receiving light and transmitting light to each of the at least two binding portions, wherein each of the at least two binding portions (102, 104, 118, 210, 211, 212) is arranged such that light transmitted through that binding portion (102, 104, 118, 210, 211, 212) without bound compound is different compared to light transmitted through that binding portion (102, 104, 118, 210, 211, 212) with bound compound, or light reflected back from that binding portion (102, 104, 118, 210, 211, 212) without bound compound is different compared to light reflected back from that binding portion (102, 104, 118, 210, 211, 212) with bound compound. The present invention further relates to a system (200) for detection of one or more compounds in a fluid (103) and an optical fibre (100, 101, 202) for use in such a system (200) and a method (400) using the system (200).

公开(公告)号：EP2649414B1

公开(公告)日：2017-08-30

申请号：EP11797109.3

申请日：2011-12-06

Applicant: Fotech Solutions Limited

Inventor： HANDEREK, Vincent

IPC: G01D5/353

CPC classification number: G01N21/474 ,  E21B47/06 ,  E21B47/123 ,  G01D5/35361 ,  G01D5/35383 ,  G01D5/35387 ,  G01N2201/06113 ,  G01N2201/088

公开(公告)号：EP2893771A4

公开(公告)日：2016-05-25

申请号：EP13834694

申请日：2013-09-03

Applicant: LUXMET OY

Inventor： AULA MATTI ,  ROININEN JUHA ,  LEPPÄNEN AHTI

IPC: H05B7/20 ,  F27B3/08 ,  F27B3/28 ,  F27D11/08 ,  F27D19/00 ,  F27D21/00 ,  F27D21/02 ,  G01N21/67

CPC classification number: G01N21/67 ,  F27B3/085 ,  F27B3/28 ,  F27D11/08 ,  F27D19/00 ,  F27D21/0014 ,  F27D21/0028 ,  F27D21/02 ,  F27D2021/026 ,  G01N2201/088 ,  H05B7/20

Abstract: An apparatus (100) comprises at least one optical cable (104), a detector (106) and a processing unit (108). An end of an optical cable (104) is placed inside the electric arc furnace (10) for collecting light from the furnace (10). The optical cable (104) conveys the light to the detector (106). The detector (106) separates the light into a plurality of optical bands of the spectrum and transforms strengths of the plurality of optical bands into electrical data. The processing unit (108) measures, for determining a state of the furnace (10), a background of the optical bands in a predetermined manner, at least one characteristic strength level of the optical bands and an average deviation of the strengths of the optical bands from the background on the basis of the electrical data.

公开(公告)号：EP2905254A1

公开(公告)日：2015-08-12

申请号：EP15158534.6

申请日：2009-08-21

Applicant: Halliburton Energy Services, Inc.

Inventor： Jones, Christopher, M.

IPC: B82Y15/00 ,  B82Y20/00 ,  E21B47/12 ,  G01N21/64

CPC classification number: G01N21/648 ,  B82Y15/00 ,  B82Y20/00 ,  E21B47/123 ,  G01N21/80 ,  G01N2021/6417 ,  G01N2021/6419 ,  G01N2021/6484 ,  G01N2201/08 ,  G01N2201/088 ,  G01V8/24 ,  Y10S977/954

Abstract: An apparatus (200), comprising at least one fluorescence optical nanofiber (204) and at least one probe fiber (260), wherein a portion of the probe fiber (260) is disposed within a distance of one hundred nanofiber diameters from the optical nanofiber (204). The first and the second nanofiber ends (208,212) are disposed within a pressure-tight chamber (228), and a portion of the optical nanofiber (204) and the portion of the probe fiber (260) are each disposed outside the chamber (228). An electromagnetic energy source (SC) is arranged to direct source electromagnetic energy having a selected fluorescence frequency to a first nanofiber end (208), and a receiver (RCVR) is arranged to receive fluorescence energy via the probe fiber (260). Sampled downhole fluid (240) is disposed proximate to the nanofiber (204) and the probe fiber (260) portions, such that the sampled downhole fluid (240) provides the fluorescence energy in response to evanescant energy arising from the source electromagnetic energy present in the optical nanofiber (204).
Additional systems and methods are disclosed.

Abstract translation: 一种装置（200），包括至少一个荧光光学纳米纤维（204）和至少一个探针纤维（260），其中所述探针纤维（260）的一部分设置在距离所述光学纳米纤维 （204）。 第一和第二纳米纤维端部（208,212）设置在不透气室（228）内，光学纳米纤维（204）的一部分和探针纤维（260）的一部分分别设置在室（228）的外侧 ）。 电磁能源（SC）被布置成将具有选定的荧光频率的源电磁能引导到第一纳米纤维端（208），并且接收器（RCVR）布置成经由探针光纤（260）接收荧光能量。 采样的井下流体（240）设置在靠近纳米纤维（204）和探针纤维（260）部分的位置，使得采样的井下流体（240）响应于源自电磁能量所产生的消除能量而提供荧光能量 光学纳米纤维（204）。 公开了附加的系统和方法。

公开(公告)号：EP2883023A1

公开(公告)日：2015-06-17

申请号：EP13745994.7

申请日：2013-08-01

Applicant: Corning Incorporated

Inventor： HOOVER, Brett Jason ,  LI, Ming-Jun ,  LI, Shenping

IPC: G01J5/08 ,  G01D5/353 ,  G01K11/32 ,  G02B6/02

CPC classification number: G01N21/636 ,  G01D5/35303 ,  G01D5/35364 ,  G01D5/35383 ,  G01J5/0821 ,  G01K11/32 ,  G01K11/3206 ,  G01K2011/322 ,  G01L1/242 ,  G01N2021/638 ,  G01N2201/088 ,  G02B6/02042 ,  G02B6/0281 ,  G02B6/0365

Abstract: A two-core optical fiber is provided for use in Brillouin distributed fiber sensor applications and systems. The two-core fiber includes a first and second core. Each core is configured to exhibit a Brillouin frequency shift greater than 30 Mhz relative to the other core. Further, each core possesses temperature and strain coefficients that differ from the other core. The cores can be configured to produce Brillouin frequency shift levels of at least 30 Mhz relative to one another. These differences in shift levels may be effected by adjustment of the material compositions, doping concentrations and/or refractive index profiles of each of the cores. These optical fibers may also be used in BOTDR- and BOTDA-based sensor systems and arrangements.

Abstract translation: 根据一个实施例，提供了两芯光纤用于布里渊分布式光纤传感器应用和系统。 双芯光纤包括第一和第二芯。 每个核被配置为相对于另一个核心呈现大于30Mhz的布里渊频移。 此外，每个核具有不同于另一个核的温度和应变系数。 芯可以配置为相对于彼此产生至少30Mhz的布里渊频移水平。 这些偏移水平的差异可能受到每个芯的材料组成，掺杂浓度和/或折射率分布的调整的影响。 这些光纤也可用于基于BOTDR和BOTDA的传感器系统和布置。

公开(公告)号：EP2828622A1

公开(公告)日：2015-01-28

申请号：EP13711342.9

申请日：2013-03-19

Applicant: University of Limerick

Inventor： REINSCH, Thomas ,  BREMER, Kort ,  LEWIS, Elfed ,  LEEN, Gabriel ,  LOCHMANN, Steffen

IPC: G01D5/353

CPC classification number: G01N21/55 ,  G01D5/35312 ,  G01D5/35316 ,  G01K11/3206 ,  G01L1/246 ,  G01N21/29 ,  G01N21/4133 ,  G01N21/7703 ,  G01N2021/7763 ,  G01N2021/7776 ,  G01N2021/7786 ,  G01N2201/088

Abstract: A sensor (1) has a light conductor (2) having a grating (FBG), a cavity (5), and a transparent cavity end wall (4), a light emitter for directing light through the conductor, and a light detector for detecting reflected light, and a processor. The processor is adapted to analyse light reflected due to the grating (FBG, 6) to determine an indication of temperature, light reflected from the end (7) of the cavity (5) to determine an indication of pressure, and also light reflected from the outer surface (8) of the cavity wall (4) to determine an indication of refractive index of a medium outside said cavity wall. The processor may use one output to compensate another, for example pressure and temperature may be used to compensate for variation in refractive index.

公开(公告)号：EP2627966A1

公开(公告)日：2013-08-21

申请号：EP11832980.4

申请日：2011-09-21

Applicant: Fiber SenSys, Inc.

Inventor： TAPANES, Edward

IPC: G01B9/02

CPC classification number: G01B9/02041 ,  G01B9/02 ,  G01B9/02012 ,  G01B9/02027 ,  G01B9/02049 ,  G01B9/02079 ,  G01B2290/70 ,  G01D5/35306 ,  G01D5/35325 ,  G01D5/35329 ,  G01N21/8806 ,  G01N2201/0612 ,  G01N2201/088 ,  G02B6/255 ,  G02B6/36 ,  Y10T29/49826

Abstract: A fiber-optic sensor can have a Michelson sensor portion and a Mach-Zehnder sensor portion. A first splitter-coupler can be configured to split incoming light between a first fiber portion and a second fiber portion. A first polarization-phase conjugation device can be configured to conjugate a polarization phase of incident light corresponding to the first fiber portion, and a second polarization-phase conjugation device can be configured to conjugate a polarization phase of incident light corresponding to the second fiber portion. Each of the first and second polarization-phase conjugation devices can be configured to reflect light toward a detector and through the respective first and second fiber portions. A coupler can be configured to join light in the first fiber portion with light in the second fiber portion, and a third fiber portion can be configured to receive light from the coupler and to illuminate a second detector.

Abstract translation: 光纤传感器可以具有迈克尔逊传感器部分和马赫 - 曾德尔传感器部分。 第一分离器耦合器可以被配置为在第一光纤部分和第二光纤部分之间分离入射光。 第一偏振相位共轭装置可以被配置为将对应于第一光纤部分的入射光的偏振相位共轭，并且第二偏振相位共轭装置可以被配置为将对应于第二光纤部分的入射光的偏振相位共轭 。 第一和第二偏振相位共轭装置中的每一个可以被配置为将光朝向检测器反射并且通过相应的第一和第二光纤部分。 耦合器可以被配置为将第一光纤部分中的光与第二光纤部分中的光结合，并且第三光纤部分可以被配置为从耦合器接收光并照亮第二检测器。

公开(公告)号：EP2467697A1

公开(公告)日：2012-06-27

申请号：EP09848571.7

申请日：2009-08-21

Applicant: Halliburton Energy Services, Inc.

Inventor： JONES, Christopher, M.

IPC: G01N21/01

CPC classification number: G01N21/648 ,  B82Y15/00 ,  B82Y20/00 ,  E21B47/123 ,  G01N21/80 ,  G01N2021/6417 ,  G01N2021/6419 ,  G01N2021/6484 ,  G01N2201/08 ,  G01N2201/088 ,  G01V8/24 ,  Y10S977/954

Abstract: Apparatus, systems, and methods may operate to transmit energy to a nanofiber sampling coil and/or a nanofiber reference coil. Further activity may include receiving the energy as modified by evanescent interaction with a sampled material located proximate to the sampling coil and/or as modified by propagation through the reference coil, and comparing the energy modified by evanescent interaction with the energy modified by propagation through the reference coil to determine a spectroscopic property of the sampled material. Additional apparatus, systems, and methods, including the use of nanofibers and fluorescence induced by evanescent radiation to conduct spectroscopic analysis, are disclosed.

公开(公告)号：EP1200856A4

公开(公告)日：2003-04-02

申请号：EP00941797

申请日：2000-07-10

Applicant: UNIV SYDNEY

Inventor： CANNING JOHN

IPC: G01N21/27 ,  G01N21/77 ,  G02B6/00 ,  G02B6/02 ,  G02B6/12 ,  G02B6/122 ,  G02B6/28 ,  G02B6/293 ,  G02B6/30 ,  G02B6/34 ,  G02B5/28 ,  G02B6/16

CPC classification number: G02B6/02138 ,  B82Y20/00 ,  G01N21/774 ,  G01N2201/088 ,  G02B6/0208 ,  G02B6/12007 ,  G02B6/1225 ,  G02B6/2852 ,  G02B6/30 ,  G02B2006/12107

Abstract: An optical waveguide (1) has a grating structure (2) in which gratings of different orders are superimposed. When first and second order gratings are superimposed, input light is partially reflected by the first order component and partially coupled out of the waveguide by the second order component. The second order component can also be used to couple external light into the waveguide (1). The grating structure (2) has applications to free space couplers, optical sensors, and suppression of ripples in dispersion compensators.