Fiber-optic flow cell and method relating thereto
    1.
    发明授权
    Fiber-optic flow cell and method relating thereto 失效
    光纤流通池及其相关的方法

    公开(公告)号:US06987897B2

    公开(公告)日:2006-01-17

    申请号:US10695236

    申请日:2003-10-28

    IPC分类号: G02B6/00

    CPC分类号: G01N21/05 G01N2015/0693

    摘要: The present invention is for a fiber optic flow cell. The flow cell comprises a substrate having at least one sample channel and at least one optical fiber channel holder. At least one optical fiber is disposed within each optical fiber channel holder. Each optical fiber has at least one grating wherein each grating is in contact with each sample channel, defining a sensing area. At least one sample port is positioned in an operable relationship to at least one sample channel. Alternatively, at least one sample outlet is positioned in an operable relationship to at least one sample channel. The flow cell may be of a modular design providing a flow cell kit that contains pieces that may be assembled to form custom-made flow cells. The flow cell is used for conducting measurement studies on a sample.

    摘要翻译: 本发明用于光纤流动池。 流动池包括具有至少一个样品通道的衬底和至少一个光纤通道保持器。 在每个光纤通道保持器内设置至少一根光纤。 每个光纤具有至少一个光栅,其中每个光栅与每个采样通道接触,限定感测区域。 至少一个采样端口被定位成与至少一个采样通道可操作的关系。 或者,至少一个样品出口被定位成与至少一个样品通道可操作的关系。 流动池可以是模块化设计,提供流动池套件,其包含可以组装以形成定制的流动池的块。 流动池用于对样品进行测量研究。

    Fiber-optic apparatus and method for making simultaneous multiple parameter measurements
    2.
    发明授权
    Fiber-optic apparatus and method for making simultaneous multiple parameter measurements 有权
    用于同时进行多参数测量的光纤设备和方法

    公开(公告)号:US06898337B2

    公开(公告)日:2005-05-24

    申请号:US10805081

    申请日:2004-03-19

    摘要: A fiber-optic method for making simultaneous multiple parameter measurements employs an optical fiber sensor having at least one long period grating disposed therein. An excitation is created in the optical fiber sensor wherein a plurality of evanescent field sensing depths result. At least two long period grating signatures are created. When the optical fiber sensor is exposed to at least one material, changes in the material are identified by simultaneously measuring and comparing shifts in each long period grating signature; correlating the shifts to changes in the material; and solving a series of equations that compare changes in the coupling wavelength for a specific loss band. A reactive coating may be applied to the optical fiber sensor proximate to the long period grating such that changes in the reactive coating as it reacts with the material may also be monitored.

    摘要翻译: 用于进行同时多参数测量的光纤方法使用具有设置在其中的至少一个长周期光栅的光纤传感器。 在光纤传感器中产生激发,其中产生多个消逝场感测深度。 创建至少两个长周期光栅签名。 当光纤传感器暴露于至少一种材料时,通过同时测量和比较每个长周期光栅标记中的位移来识别材料的变化; 将转移与材料变化相关联; 并求解一系列方程,比较特定损耗带的耦合波长变化。 可以将反应性涂层施加到靠近长周期光栅的光纤传感器,使得当反应性涂层与材料反应时的变化也可以被监测。

    Extrinisic optical waveguide sensors
    3.
    发明授权
    Extrinisic optical waveguide sensors 失效
    外伸光波导传感器

    公开(公告)号:US06341185B1

    公开(公告)日:2002-01-22

    申请号:US09383722

    申请日:1999-08-26

    IPC分类号: B02B600

    CPC分类号: G01D5/268

    摘要: An extrinsic optical waveguide sensor for making refractive index measurements of an in situ sample is provided. The sensor comprises a holder having at least one sample input region and at least one interferometric region. At least one optical fiber is positioned in the holder, each optical fiber having an endface serving as an input and an output. At least one reflector, each reflector is positioned in the holder in an operable relationship to each optical fiber endface, thus defining each interferometric region.

    摘要翻译: 提供了用于进行原位样品的折射率测量的外在光波导传感器。 传感器包括具有至少一个采样输入区域和至少一个干涉区域的保持器。 至少一个光纤被定位在保持器中,每个光纤的端面用作输入端和输出端。 至少一个反射器,每个反射器以与每个光纤端面可操作的关系定位在保持器中,从而限定每个干涉区域。

    Single-ended long period grating optical device
    4.
    发明授权
    Single-ended long period grating optical device 失效
    单端长周期光栅光器件

    公开(公告)号:US06275628B1

    公开(公告)日:2001-08-14

    申请号:US09440499

    申请日:1999-11-15

    IPC分类号: G02B626

    摘要: A single-ended long period grating optical device is presented. The single-ended optical device comprises an optical waveguide having at least one core mode and a plurality of cladding modes. At least one long period grating couples light from the core mode to the cladding modes. A reflector is positioned in an operable relationship to the long period grating, and the reflector reflects a signal. A mode stripper is positioned after the long period grating and removes the cladding modes from a transmitted signal and the reflected signal.

    摘要翻译: 提出了一种单端长周期光栅光学器件。 单端光学器件包括具有至少一个核心模式和多个包层模式的光波导。 至少一个长周期光栅将光从核心模式耦合到包层模式。 反射器被定位成与长周期光栅可操作的关系,并且反射器反射信号。 模式剥离器位于长周期光栅之后,并从发射信号和反射信号中去除包层模式。

    OXIDATIVE MONO-HALOGENATION OF METHANE
    5.
    发明申请
    OXIDATIVE MONO-HALOGENATION OF METHANE 有权
    氧化甲烷的单氧化反应

    公开(公告)号:US20110201841A1

    公开(公告)日:2011-08-18

    申请号:US13123908

    申请日:2009-08-19

    IPC分类号: C07C51/14 C07C17/013

    CPC分类号: C07C17/154 C07C19/03

    摘要: Oxidatively halogenate methane by placing a feedstream that comprises methane, a source of halogen, a source of oxygen and, optionally, a source of diluent gas in contact with a first catalyst (e.g. a solid super acid or a solid super base) that has greater selectivity to methyl halide and carbon monoxide than to methylene halide, trihalomethane or carbon tetrahalide. Improve overall selectivity to methyl halide by using a second catalyst that converts at least part of the feedstream to a mixture of methyl halide, methylene halide, trihalomethane, carbon tetrahalide and unreacted oxygen, and placing that mixture in contact with the first catalyst which converts at least a portion of the methylene halide, trihalomethane and carbon tetrahalide to carbon monoxide, hydrogen halide and water.

    摘要翻译: 通过放置包含甲烷,卤素源,氧源和任选的稀释气体源的进料流,将第一催化剂(例如固体超强酸或固体超级碱)接触,从而氧化卤化甲烷,所述第一催化剂 对甲基卤和一氧化碳的选择性高于二氯甲烷,三卤甲烷或四卤化碳。 通过使用将至少部分进料流转化为甲基卤化物,二卤甲烷,三卤代甲烷,四卤化碳和未反应的氧的混合物的第二催化剂来提高对甲基卤的总体选择性,并将该混合物与第一种催化剂接触, 二卤甲烷,三卤代甲烷和四卤化碳中的至少一部分与一氧化碳,卤化氢和水反应。

    Optical sensor arrangement
    7.
    发明授权
    Optical sensor arrangement 失效
    光传感器布置

    公开(公告)号:US06343168B1

    公开(公告)日:2002-01-29

    申请号:US09476656

    申请日:1999-12-31

    IPC分类号: G02B634

    摘要: An optical sensor arrangement is provided. The arrangement comprises a light source coupled to an optical waveguide. The optical waveguide has at least one long period grating that promotes an excitation of confined propagating light into higher order modes causing an excitation of a sensing mechanism. A detector is coupled to the optical waveguide to detect a resulting optical signal.

    摘要翻译: 提供光学传感器装置。 该装置包括耦合到光波导的光源。 光波导具有至少一个长周期光栅,其促进受限传播的光激发到高阶模式,从而引起感测机构的激发。 检测器耦合到光波导以检测所得到的光信号。

    Optical fiber holder
    9.
    发明授权
    Optical fiber holder 失效
    光纤保持架

    公开(公告)号:US06215943B1

    公开(公告)日:2001-04-10

    申请号:US09103370

    申请日:1998-06-23

    IPC分类号: G02B600

    CPC分类号: G02B6/3624 G02B6/3845

    摘要: An optical fiber holder is presented. The optical fiber holder comprises a tube having a longitudinal axis, a first end for receiving an optical fiber, and a recessed second end for protecting the optical fiber tip. An aperture is disposed along a length of the longitudinal axis of the tube for exposing the optical fiber to a sample. The optical fiber holder allows a sample to be tested while avoiding strain and bending influences.

    摘要翻译: 介绍了一种光纤支架。 光纤保持器包括具有纵向轴线的管,用于接收光纤的第一端和用于保护光纤尖端的凹陷的第二端。 沿着管的纵向轴线的长度设置孔,用于将光纤暴露于样品。 光纤保持器允许测试样品,同时避免应变和弯曲影响。

    Fiber depolarizer using heated fiber coil and fusion splicer and two
polarization preserving fibers and method
    10.
    发明授权
    Fiber depolarizer using heated fiber coil and fusion splicer and two polarization preserving fibers and method 失效
    光纤去极化器采用加热纤维线圈和熔接机以及两种极化保鲜纤维及方法

    公开(公告)号:US5486916A

    公开(公告)日:1996-01-23

    申请号:US282684

    申请日:1994-07-29

    IPC分类号: G02B6/34 G01B9/02

    摘要: Apparatus and methods for detecting when the birefringent axes of two polarization preserving fibers have their ends oriented into a position to locate the respective axes at 45 degrees. A fusion splicer and a heating controller for the fiber sensing coil are added to a reciprocal interferometer to produce a predetermined pattern of percent light intensity versus time in the returned light, when the axes are properly aligned for fusing. A computer may control the automatic making of depolarizers by this invention.

    摘要翻译: 用于检测两个偏振保留纤维的双折射轴何时其端部被定位成将相应轴定位在45度的位置的装置和方法。 将纤维感测线圈的熔接机和加热控制器添加到倒置干涉仪中,以在轴被适当对准以便熔化时产生在返回的光中相对于时间的光强百分比的预定图案。 计算机可以通过本发明来控制消偏振器的自动制作。