中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

16 records (took 0.045 seconds)

    METHOD AND APPARATUS FOR MONITORING TRACE CONSTITUENTS IN A FLUID
    12.
    发明专利
    METHOD AND APPARATUS FOR MONITORING TRACE CONSTITUENTS IN A FLUID 未知

    公开(公告)号：CA2158516A1

    公开(公告)日：1997-01-29

    申请号：CA2158516

    申请日：1995-09-18

    Applicant: UNISEARCH ASSOCIATES INC

    Inventor： NADLER SHACHAR

    IPC: G01N21/31 ,  G01N21/39 ,  G01N21/53 ,  G01N21/59

    Abstract: An apparatus for remote detection of selected trace constituents in a fluid, for example flue gases from a stack, has a laser for generating a laser beam. The laser beam is transmitted through the fluid and the returned laser beam is detected after transmission through the fluid. A detector receives the returned laser beam, to detect the presence of any of the selected trace constituents, by comparison of the transmitted and returned beams. An optical fiber connection means, which can comprise either a single optical fiber or a pair of optical fibers, provides a connection between at least one of (i) the laser and a transmitter for the laser beam, and (ii) a receiver for the laser beam and the detector. This enables the detector and the laser to be located remotely and away from hostile environments.

    GAS CELL ASSEMBLY FOR ABSORPTION SPECTROSCOPY
    15.
    发明公开
    GAS CELL ASSEMBLY FOR ABSORPTION SPECTROSCOPY 审中-公开
    GASZELLENANORDNUNG ZUR ABSORPTIONSSPEKTROSKOPIE

    公开(公告)号：EP2993461A1

    公开(公告)日：2016-03-09

    申请号：EP15169283.7

    申请日：2015-05-26

    Applicant: Unisearch Associates Inc. ,  Unisearch Instruments Nanjing Inc.

    Inventor： Chanda, Alak ,  Wu, Shimin

    IPC: G01N21/3504 ,  G01N21/03

    Abstract: A gas cell assembly (10) for absorption spectroscopy. An example gas cell assembly (10) includes a gas cell body (102) with an inlet (22i) for receiving a gas sample from a gas source; a first and a second end portions (108f; 108s) that allow optical transmission into and out of the body (102), the second end portion (108s) being substantially opposite from the first end portion (108f); and a channel (106) providing a path for the gas sample and optical beam(s) between the first end portion (108f) and the second end portion (108s). The gas cell assembly (10) also includes reflective surfaces (110) outside the body (102) to receive versions of the optical beams from the body (102) and to reflect each version of the incident beam (50) towards the body (102). A detector (24), then, receives a last reflected beam and transmits a corresponding data signal to a processing unit (28) for analyzing the gas sample based on the data signal.

    Abstract translation: 一种用于吸收光谱的气体电池组件（10）。 示例性气体电池组件（10）包括具有用于从气体源接收气体样品的入口（22i）的气室单元（102） 第一端部和第二端部（108f; 108s），其允许光学传输进入和离开本体（102），第二端部（108s）与第一端部（108f）基本相对; 以及在所述第一端部（108f）和所述第二端部（108s）之间提供用于所述气体样品和光束的路径的通道（106）。 气体电池组件（10）还包括在主体（102）外部的反射表面（110），以从主体（102）接收光束的形式，并将入射光束（50）的每种形式朝向主体（102）反射 ）。 然后，检测器（24）接收最后的反射光束并将相应的数据信号发送到处理单元（28），用于基于数据信号分析气体样本。

    GAS CELL FOR ABSORPTION SPECTROSCOPY
    16.
    发明公开
    GAS CELL FOR ABSORPTION SPECTROSCOPY 审中-公开
    用于吸收光谱的气体电池

    公开(公告)号：EP3173768A1

    公开(公告)日：2017-05-31

    申请号：EP16200350.3

    申请日：2016-11-23

    Applicant: Unisearch Associates Inc. ,  Unisearch Instruments Nanjing Inc.

    Inventor： CHANDA, Alak ,  WU, Shimin

    IPC: G01N21/03 ,  G01J3/42 ,  G01N21/15

    CPC classification number: G01N21/3504 ,  G01J3/021 ,  G01J3/42 ,  G01N21/0303 ,  G01N21/031 ,  G01N21/0332 ,  G01N21/255 ,  G01N21/61 ,  G01N2021/0389 ,  G01N2021/158

    Abstract: A gas cell assembly and applications of the gas cell assembly in high temperature absorption spectroscopy. An example gas cell assembly comprises a channel (806) with an inlet (804i) for receiving a gas sample and an outlet (804o) for releasing the gas sample from the gas cell; first and second end components (808f, 808s), comprising an extended member (890f, 890s) with an optically transparent portion, permitting optical transmission into and out of the channel; and a temperature varying material (880) wound around the channel. Each of the end components is configured to minimize a difference between a temperature of the optically transparent portions and an internal temperature of the channel (806). Each of the optically transparent portions includes a first optical layer (866, 862) and a second optical layer (868, 864) separated by a space (870) with low thermal conductivity.

    Abstract translation: 一种气室装置和气室装置在高温吸收光谱中的应用。 一种示例性气室组件包括具有用于接收气体样本的入口（804i）和用于从气室释放气体样本的出口（804o）的通道（806） 第一和第二端部部件（808f，808s），包括具有光学透明部分的延伸部件（890f，890s），允许光学传输进入和离开通道; 和围绕通道缠绕的温度变化材料（880）。 每个端部部件被配置为最小化光学透明部分的温度与通道（806）的内部温度之间的差异。 每个光学透明部分包括由具有低导热率的空间（870）分开的第一光学层（866,862）和第二光学层（868,864）。

Patent Agency Ranking