中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

49 records (took 0.016 seconds)

    Bragg grating pressure sensor
    22.
    发明授权
    Bragg grating pressure sensor 有权
    布拉格光栅压力传感器

    公开(公告)号：US06422084B1

    公开(公告)日：2002-07-23

    申请号：US09455867

    申请日：1999-12-06

    Applicant: Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  James R. Dunphy ,  Michael A. Davis ,  Christopher J. Wright ,  Alan D. Kersey ,  Martin A. Putnam ,  Robert N. Brucato ,  Paul E. Sanders

    Inventor： Mark R. Fernald ,  Timothy J. Bailey ,  Matthew B. Miller ,  James M. Sullivan ,  James R. Dunphy ,  Michael A. Davis ,  Christopher J. Wright ,  Alan D. Kersey ,  Martin A. Putnam ,  Robert N. Brucato ,  Paul E. Sanders

    IPC: G01L900

    CPC classification number: G01L11/025

    Abstract: A fiber grating pressure sensor includes an optical sensing element 20, 600 which includes an optical fiber 10 having a Bragg grating 12 impressed therein which is encased within and fused to at least a portion of a glass capillary tube 20 and/or a large diameter waveguide grating 600 having a core and a wide cladding and which has an outer transverse dimension of at least 0.3 mm. Light 14 is incident on the grating 12 and light 16 is reflected from the grating 12 at a reflection wavelength &lgr;1. The sensing element 20, 600 may be used by itself as a sensor or located within a housing 48, 60, 90, 270, 300. When external pressure P increases, the grating 12 is compressed and the reflection wavelength &lgr;1 changes. The shape of the sensing element 20, 600 may have other geometries, e.g., a “dogbone” shape, so as to enhance the sensitivity of shift in &lgr;1 due to applied external pressure and may be fused to an outer shell 50. At least a portion of the sensing element may be doped between a pair of gratings 150, 152, to form a compression-tuned laser or the grating 12 or gratings 150, 152 may be constructed as a tunable DFB laser. Also, the axial ends of element 20, 600 where the fiber 10 exits the tube 20 may have an inner tapered region 22 and/or a protruding tapered (or fluted) axial section 27 to provide strain relief or improved pull strength for the fiber 10. A temperature grating 270 may be used to measure temperature and allow for a temperature-corrected pressure measurement. The sensor may be suspended within an outer housing 112, by a fluid, spacers, or other means. The invention may also be used as a force transducer.

    Abstract translation: 光纤光栅压力传感器包括光学感测元件20,600，光学传感元件20,600包括光纤10，该光纤10具有印刷在其中的布拉格光栅12，该光纤10包围玻璃毛细管20和/或大直径波导的至少一部分 光栅600具有芯和宽包层，并且具有至少0.3mm的外横向尺寸。 光14入射到光栅12上，光16以反射波长lambd1从光栅12反射。 感测元件20,600可以自身用作传感器或位于壳体48,60,90,270,3300内。当外部压力P增加时，光栅12被压缩并且反射波长lambd1改变。 感测元件20,600的形状可以具有其他几何形状，例如“狗骨”形状，以便增强由于施加的外部压力而导致的羔羊皮1偏移的灵敏度，并且可以将其熔合到外壳50上。至少 感测元件的一部分可以掺杂在一对光栅150,152之间以形成压缩调谐的激光器，或者光栅12或光栅150,152可被构造为可调DFB激光器。 此外，纤维10离开管20的元件20,600的轴向端部可以具有内锥形区域22和/或突出的锥形（或槽纹）轴向部分27，以提供应变消除或改进的纤维10的拉伸强度 可以使用温度光栅270来测量温度并允许进行温度校正的压力测量。 传感器可以通过流体，间隔件或其他装置悬挂在外壳体112内。 本发明也可以用作力传感器。

    Select trigger and detonation system using an optical fiber
    23.
    发明授权
    Select trigger and detonation system using an optical fiber 有权
    选择使用光纤的触发和爆震系统

    公开(公告)号：US06227114B1

    公开(公告)日：2001-05-08

    申请号：US09222637

    申请日：1998-12-29

    Applicant: Jian-Qun Wu ,  Alan D. Kersey ,  Arthur D. Hay ,  James R. Dunphy

    Inventor： Jian-Qun Wu ,  Alan D. Kersey ,  Arthur D. Hay ,  James R. Dunphy

    IPC: F42D104

    CPC classification number: F42D1/045

    Abstract: The invention provides a select trigger or detonation system featuring an optical source, an optical fiber, one or more optical couplers and one or more light trigger or detonation devices. The an optical source provides an optical signal containing information about triggering or detonating a respective device. The optical fiber has one or more fiber Bragg Gratings for providing one or more fiber Bragg Grating optical trigger or detonation signals, each having a respective optical trigger or detonation wavelength. The one or more optical couplers each respond to the one or more fiber Bragg Grating optical trigger or detonation signals depending on the respective optical trigger or detonation wavelength, for providing a respective coupled fiber Bragg Grating optical trigger or detonation signal. The one or more light trigger or detonation devices each respond to the respective coupled fiber Bragg Grating optical trigger or detonation signals, for triggering or detonating the respective device, which may detonating an explosive charge or triggering any other control device to be actuated. In one embodiment, the one or more optical couplers may include a circulation coupler or a directional coupler. The system may also be used as a monitoring system.

    Abstract translation: 本发明提供一种具有光源，光纤，一个或多个光耦合器和一个或多个光触发或引爆装置的选择触发或爆炸系统。 光源提供包含关于触发或引爆相应设备的信息的光学信号。 光纤具有一个或多个光纤布拉格光栅，用于提供一个或多个光纤布拉格光栅光学触发器或引爆信号，每个具有相应的光学触发或引爆波长。 一个或多个光耦合器各自响应于根据相应的光学触发或引爆波长的一个或多个光纤布拉格光栅光触发或引爆信号，以提供相应的耦合光纤布拉格光栅光触发或引爆信号。 一个或多个光触发或引爆装置各自响应于相应的耦合光纤布拉格光栅光触发或引爆信号，用于触发或引爆相应的装置，其可引爆炸药或触发任何其它控制装置被致动。 在一个实施例中，一个或多个光耦合器可以包括循环耦合器或定向耦合器。 该系统也可以用作监视系统。

    Embedded optical sensor capable of strain and temperature measurement using a single diffraction grating
    24.
    发明授权
    Embedded optical sensor capable of strain and temperature measurement using a single diffraction grating 失效
    嵌入式光学传感器，可使用单个衍射光栅进行应变和温度测量

    公开(公告)号：US5399854A

    公开(公告)日：1995-03-21

    申请号：US207993

    申请日：1994-03-08

    Applicant: James R. Dunphy ,  Gerald Meltz ,  Mauro Varasi ,  Antonello Vannucci ,  Mario Signorazzi ,  Pietro Ferraro ,  Sabato I. Imparato ,  Claudio Voto

    Inventor： James R. Dunphy ,  Gerald Meltz ,  Mauro Varasi ,  Antonello Vannucci ,  Mario Signorazzi ,  Pietro Ferraro ,  Sabato I. Imparato ,  Claudio Voto

    IPC: G01L1/24 ,  G01B11/16 ,  G01D21/02 ,  G01K5/72 ,  G01K11/12 ,  G01K11/32 ,  G01M11/08 ,  H01J5/16

    CPC classification number: G01M11/086 ,  G01K11/3206 ,  G01K5/72

    Abstract: An embedded optical sensor has a plurality of layers 10-20 and an optical fiber 21 with a fiber grating 28, disposed between the layers 14,16. The layers 10-20 comprise filaments 22 and resin 24 which have different thermal expansion coefficients and the filaments 22 are oriented so as to create unequal transverse residual stresses that act through the geometry of a resin-rich region that surrounds on the grating 28 in the fiber 21. The unequal transverse residual stresses cause birefringence in the grating 28, thereby causing the grating 28 to reflect light 32 having two wavelengths with a predetermined separation, each along a different polarization axis. The wavelength separation and average wavelength between such separation have different sensitivities to temperature and strain, thereby allowing independent temperature and strain measurements using only a single grating. The birefringence is maximized when the filaments 22 of the adjacent layers 10,12 are oriented at 90 degrees with respect to the longitudinal (Z-axis) of the fiber 21.

    Abstract translation: 嵌入式光学传感器具有设置在层14,16之间的多个层10-20和具有光纤光栅28的光纤21。 层10-20包括长丝22和树脂24，其具有不同的热膨胀系数，并且细丝22被定向成产生不等的横向残余应力，其通过围绕光栅28的树脂富集区域的几何形状起作用 不均匀的横向残余应力在光栅28中引起双折射，从而使光栅28以不同的偏振轴反射具有预定间隔的两个波长的光32。 这种分离之间的波长分离和平均波长对温度和应变具有不同的灵敏度，从而允许使用仅一个光栅进行独立的温度和应变测量。 当相邻层10,12的细丝22相对于纤维21的纵向（Z轴）定向成90度时，双折射最大化。

    Optical fiber feedthrough using axial seals for bi-directional sealing
    26.
    发明授权
    Optical fiber feedthrough using axial seals for bi-directional sealing 有权
    光纤馈通使用轴向密封进行双向密封

    公开(公告)号：US07751677B2

    公开(公告)日：2010-07-06

    申请号：US12050655

    申请日：2008-03-18

    Applicant: James R. Dunphy ,  George J. Talmadge ,  John J. Grunbeck ,  Khai Tran ,  Roddie R. Smith

    Inventor： James R. Dunphy ,  George J. Talmadge ,  John J. Grunbeck ,  Khai Tran ,  Roddie R. Smith

    IPC: G02B6/00

    CPC classification number: E21B47/123 ,  E21B33/0385 ,  G01K11/32 ,  G01L11/025 ,  G02B6/022 ,  G02B6/02209 ,  G02B6/4248 ,  G02B6/4428

    Abstract: An optical waveguide feedthrough assembly passes at least one optical waveguide through a bulk head, a sensor wall, or other feedthrough member. The optical waveguide feedthrough assembly comprises a cane-based optical waveguide that forms a glass plug sealingly disposed in a feedthrough housing. A seal fills an annular space between the glass plug and the housing. The seal may be energized by a fluid pressure in the housing to establish sealing engagement. Further, the seal may provide bidirectional sealing. The feedthrough assembly is operable in high temperature and high pressure environments.

    Abstract translation: 光波导馈通组件使至少一个光波导通过散装头，传感器壁或其它馈通构件。 光波导馈通组件包括基于基准的光波导，其形成密封地布置在馈通壳体中的玻璃塞。 密封件填充玻璃塞和壳体之间的环形空间。 密封件可以通过壳体中的流体压力来激励以建立密封接合。 此外，密封件可以提供双向密封。 馈通组件可在高温和高压环境中操作。

    Optical waveguide feedthrough assembly
    27.
    发明授权
    Optical waveguide feedthrough assembly 有权
    光波导馈通组件

    公开(公告)号：US07747126B2

    公开(公告)日：2010-06-29

    申请号：US11932139

    申请日：2007-10-31

    Applicant: James R. Dunphy ,  John J. Grunbeck ,  Trevor MacDougall ,  Matthew J. Patterson

    Inventor： James R. Dunphy ,  John J. Grunbeck ,  Trevor MacDougall ,  Matthew J. Patterson

    IPC: G02B6/00

    CPC classification number: G02B6/4248 ,  G01D5/268 ,  G02B6/3801

    Abstract: An optical fiber feedthrough assembly includes a glass plug disposed in a recess of a feedthrough housing. The glass plug may define a large-diameter, cane-based, waveguide sealed within the recess in the housing and providing optical communication through the housing. Sealing occurs with respect to the housing at or around the glass plug of an optical waveguide element passing through the housing by braze sealing to the glass plug and/or embedding the glass plug in a polymer bonded with the plug to form a molded body that is sealed in the housing by, for example, compression mounting of the molded body or providing a sealing element around the molded body.

    Abstract translation: 光纤馈通组件包括设置在馈通壳体的凹部中的玻璃插头。 玻璃塞可以限定一个大直径的基于甘蔗的波导，该波导密封在壳体的凹槽内并提供通过壳体的光学连通。 相对于穿过壳体的光波导元件的玻璃塞或其周围的壳体，通过钎焊密封玻璃塞和/或将玻璃塞嵌入到与插塞接合的聚合物中而形成密封，以形成模制体， 通过例如压缩安装模制体或在模制体周围提供密封元件来密封在壳体中。

    OPTICAL FIBER FEEDTHROUGH USING AXIAL SEALS FOR BI-DIRECTIONAL SEALING
    28.
    发明申请
    OPTICAL FIBER FEEDTHROUGH USING AXIAL SEALS FOR BI-DIRECTIONAL SEALING 有权
    通过使用轴向密封件进行双向密封的光纤

    公开(公告)号：US20080166099A1

    公开(公告)日：2008-07-10

    申请号：US12050655

    申请日：2008-03-18

    Applicant: James R. Dunphy ,  George J. Talmadge ,  John J. Grunbeck ,  Khai Tran ,  Roddie R. Smith

    Inventor： James R. Dunphy ,  George J. Talmadge ,  John J. Grunbeck ,  Khai Tran ,  Roddie R. Smith

    IPC: G02B6/00

    CPC classification number: E21B47/123 ,  E21B33/0385 ,  G01K11/32 ,  G01L11/025 ,  G02B6/022 ,  G02B6/02209 ,  G02B6/4248 ,  G02B6/4428

    Abstract: An optical waveguide feedthrough assembly passes at least one optical waveguide through a bulk head, a sensor wall, or other feedthrough member. The optical waveguide feedthrough assembly comprises a cane-based optical waveguide that forms a glass plug sealingly disposed in a feedthrough housing. A seal fills an annular space between the glass plug and the housing. The seal may be energized by a fluid pressure in the housing to establish sealing engagement. Further, the seal may provide bidirectional sealing. The feedthrough assembly is operable in high temperature and high pressure environments.

    Abstract translation: 光波导馈通组件使至少一个光波导通过散装头，传感器壁或其它馈通构件。 光波导馈通组件包括基于基准的光波导，其形成密封地布置在馈通壳体中的玻璃塞。 密封件填充玻璃塞和壳体之间的环形空间。 密封件可以通过壳体中的流体压力来激励以建立密封接合。 此外，密封件可以提供双向密封。 馈通组件可在高温和高压环境中操作。

    OPTICAL WAVEGUIDE FEEDTHROUGH ASSEMBLY
    29.
    发明申请
    OPTICAL WAVEGUIDE FEEDTHROUGH ASSEMBLY 有权
    光波导通过组装

    公开(公告)号：US20080145015A1

    公开(公告)日：2008-06-19

    申请号：US11932139

    申请日：2007-10-31

    Applicant: James R. Dunphy ,  John J. Grunbeck ,  Trevor MacDougall ,  Matthew J. Patterson

    Inventor： James R. Dunphy ,  John J. Grunbeck ,  Trevor MacDougall ,  Matthew J. Patterson

    IPC: G02B6/00

    CPC classification number: G02B6/4248 ,  G01D5/268 ,  G02B6/3801

    Abstract: An optical fiber feedthrough assembly includes a glass plug disposed in a recess of a feedthrough housing. The glass plug may define a large-diameter, cane-based, waveguide sealed within the recess in the housing and providing optical communication through the housing. Sealing occurs with respect to the housing at or around the glass plug of an optical waveguide element passing through the housing by braze sealing to the glass plug and/or embedding the glass plug in a polymer bonded with the plug to form a molded body that is sealed in the housing by, for example, compression mounting of the molded body or providing a sealing element around the molded body.

    Abstract translation: 光纤馈通组件包括设置在馈通壳体的凹部中的玻璃插头。 玻璃塞可以限定一个大直径的基于甘蔗的波导，该波导密封在壳体的凹槽内并提供通过壳体的光学连通。 相对于穿过壳体的光波导元件的玻璃塞或其周围的壳体，通过钎焊密封玻璃塞和/或将玻璃塞嵌入到与插塞接合的聚合物中而形成密封，以形成模制体， 通过例如压缩安装模制体或在模制体周围提供密封元件来密封在壳体中。

Patent Agency Ranking