中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

191 records (took 0.022 seconds)

    MULTIPLE-GAS NDIR ANALYZER
    141.
    发明公开
    MULTIPLE-GAS NDIR ANALYZER 失效
    NDIR分析装置用于几种气体

    公开(公告)号：EP0939898A1

    公开(公告)日：1999-09-08

    申请号：EP97938103.0

    申请日：1997-08-01

    Applicant: ANDROS INCORPORATED

    Inventor： WILLIAMS, Kevin, G. ,  CHRISTENSEN, Kim, S.

    IPC: G01N21

    CPC classification number: G01N21/61 ,  G01N2201/0227 ,  G01N2201/0228

    Abstract: A non-dispersive infrared (NDIR) multi-gas analyzer (405) has an optical element (950) that is positioned with respect to the axis of incident IR radiation such that it passes nearly all of the IR energy within a narrow band pass to one detector (540) and reflects nearly all of the IR energy outside the narrow band pass to another detector (535). Thus, the optical element (950) simultaneously functions both as a narrow band pass filter and a beam splitter, which transmits nearly all the IR radiation within a band pass and reflects nearly all the IR radiation outside the band pass. Additionally, the separation of the incoming energy can be achieved without an extended roll off. This allows using a reference transmission band that is very close to the absorption band of the gases of interest. It more specifically allows using a reference transmission band that is located between the absorption bands for hydrocarbons and carbon dioxide in an infrared analyzer that uses beam splitters.

    PROTECTIVE ENCLOSURE FOR USE WITH A SENSOR FOR DETECTING AN ANALYTE
    147.
    发明公开
    PROTECTIVE ENCLOSURE FOR USE WITH A SENSOR FOR DETECTING AN ANALYTE 审中-公开
    外壳与传感器用于检测分析物的

    公开(公告)号：EP2737284A1

    公开(公告)日：2014-06-04

    申请号：EP12751157.4

    申请日：2012-07-24

    Applicant: Mine Safety Appliances Company

    Inventor： BRADLEY, Michael, Kevin

    IPC: G01D11/24 ,  G01N21/09 ,  G01N21/35 ,  G01L19/06 ,  G01L19/14

    CPC classification number: G01D11/245 ,  G01N21/01 ,  G01N21/3504 ,  G01N2201/0224 ,  G01N2201/0227 ,  Y10T29/49826

    Abstract: A method of protecting a sensor (300) for use in an environment in¬ cludes: providing a protective enclosure formed in a plurality of sec¬ tions (110a, 110b), at least a first section (110a) of the plurality of sections being movable relative to a second section (110b) of the plurality of sections so that the protective enclosure can be placed around at least a portion of the sensor (300); placing the first section (110a) adjacent the sensor (300) while the first section (110a) and the second section (110b) are in an open state; and moving the second section (110b) to place the first section (110a) and the second sec¬ tion (110b) in a closed state in which the first section (110a) and the second section (110b) encompass the at least a portion of the sensor (300).

    ULTRASENSITIVE SPECTROPHOTOMETER
    149.
    发明公开
    ULTRASENSITIVE SPECTROPHOTOMETER 审中-公开
    ULTRA SENSIBLES分光光度计

    公开(公告)号：EP1856492A4

    公开(公告)日：2009-07-01

    申请号：EP06717941

    申请日：2006-01-11

    Applicant: UNIV MISSOURI

    Inventor： LARSEN DAVID W ,  XU ZHI

    IPC: G01J3/42 ,  G01J3/427

    CPC classification number: G01N21/31 ,  G01J3/02 ,  G01J3/0224 ,  G01J3/0262 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/42 ,  G01J2003/425 ,  G01N21/274 ,  G01N2021/3137 ,  G01N2201/0227 ,  G01N2201/0642 ,  G01N2201/127

    Abstract: The invention concerns measurements in which light interacts with matter giving rise to changes in light intensity, and preferred embodiment spectrophotometer devices of the invention provide for ultrasensitive measurements through a reflection interaction with matter. The level of light source noise in these measurements can be reduced in accordance with the invention. Preferred embodiments of the invention use sealed housings (112, 600, 700) lacking an internal light source, and reflection based sample and reference cells. In some embodiments a substantially solid thermally conductive housing (600, 700) is used. Other features of preferred embodiments include particular reflection based sample and reference cells. A total internal reflection embodiment includes, for example, a prism (302, 322, 622a, 623 a) including an interaction surface, a detector, a lens that focuses a beam output from the prism onto the detector, and a closed interaction volume having an inlet and an outlet for delivering gas or liquid to the interaction surface. In a specular reflection embodiment, a reflective surface (402, 422) is used instead of a prism. In a diffuse reflection embodiment a matte surface (502, 522) is used instead of a prism and the matte surface produces scattering. Aspects of the invention include identification of noise-contributing components in spectrophotometry and the select set of preferred features in a given embodiment, and noise levels very near the shot noise limit may be realized with application of preferred embodiment devices.

    Analytical method and apparatus for liquid sample using near infrared spectroscopy
    150.
    发明公开
    Analytical method and apparatus for liquid sample using near infrared spectroscopy 审中-公开
    使用近红外光谱的液体样品分析的方法和装置

    公开(公告)号：EP1666870A2

    公开(公告)日：2006-06-07

    申请号：EP06001476.8

    申请日：2001-03-22

    Applicant: Japan as Represented by Director of National Food Research Institute Ministry of Agriculture, Forestry and Fisheries ,  Bio-oriented Technology Research Advancement Institution

    Inventor： Kawano, Sumio ,  Iyo, Chie

    IPC: G01N21/27 ,  G01N21/35

    CPC classification number: G01N21/0303 ,  G01N21/03 ,  G01N21/274 ,  G01N21/276 ,  G01N21/3577 ,  G01N21/359 ,  G01N2201/0227 ,  G01N2201/08 ,  G01N2201/129

    Abstract: First, monochromatic near infrared light in a wavelength range of 700nm - 1100nm from the slit of the near infrared apparatus (1) is applied to a reference ceramic plate through the optical fiber (7) to measure a transmitted light intensity of the ceramic plate which is a reference material for spectrum measurement. Next, in place of the ceramic plate, the test tube (4) containing a liquid sample of which the temperature has been adjusted at a predetermined temperature by a water bath and the like is inserted into the housing portion (5). The transmitted light intensity of the liquid sample is then measured using the same procedure as above. A so-called near infrared absorption spectrum in which absorbance has been plotted against wavelengths is displayed on the screen of the computer (2). Information about each object characteristic is extracted from the spectrum data using a calibration equation.

    Abstract translation: 首先，在波长为700nm的单色近红外光 - 从近红外装置的狭缝1100nm（1）通过光纤（7）应用到参考陶瓷板测量陶瓷板的反式mitted光亮度 是用于光谱测量的参考材料。 接着，代替陶瓷板，试管（4）含有温度的液体样品已在预定的温度通过水浴调整等被插入到（5）的壳体部分。 液体样品的反式mitted光强度，然后使用与上述相同的步骤测量。 所谓邻近在哪个吸光度红外吸收光谱已经被作图波长显示在计算机（2）的画面上。 有关每个对象的特征信息从使用校准方程的光谱数据提取。

Patent Agency Ranking