公开(公告)号：EP1254076A1

公开(公告)日：2002-11-06

申请号：EP01907757.7

申请日：2001-02-09

申请人： Société Franco-Belge de Fabrication de Combustibles - FBFC

发明人： FEUGIER, André

IPC分类号： C01G43/025 ,  G21C3/62 ,  G01N33/00

CPC分类号： G21C3/623 ,  C01G43/025 ,  C01P2006/80 ,  G01N33/0036 ,  Y02E30/38 ,  Y10T436/12 ,  Y10T436/153333 ,  Y10T436/16 ,  Y10T436/207497

摘要： The invention concerns a method whereby a product in condensed state, for example a solid in powder form circulates continuously in the longitudinal direction (6) of the kiln (4, 5). Said method consists in contacting with the product in condensed state a reactive gas mixture; drawing a plurality of samples of the gas mixture in several reference points (14) spaced apart from one another along the longitudinal direction (6) of the kiln (4, 5); analysing each of the gas samples outside the kiln to determine the composition of the gas mixture and deducing from the composition of the gas mixture in each of the reference points (14), the degree of progress in said point (14) of a chemical reaction between the product in condensed state and the reactive gas mixture. The device comprises in particular a sampling and injecting rod (10) inserted in the kiln (4, 5) and arranged along its longitudinal direction (6). The invention is particularly useful for modelling a rotary kiln (4, 5) for converting uranium oxyfluorides into uranium oxides and for adjusting the conversion in the kiln (4, 5).

公开(公告)号：EP1207390A2

公开(公告)日：2002-05-22

申请号：EP01309361.2

申请日：2001-11-05

申请人： LECO CORPORATION

发明人： Pack, Brian W. ,  Guerra, Carlos ,  Willis, Peter Markel ,  Mitchell, Joel Carlton

IPC分类号： G01N33/00 ,  G01N31/00 ,  G01N31/12

CPC分类号： G01N31/12 ,  G01N33/0016 ,  Y10T436/17 ,  Y10T436/176152 ,  Y10T436/176921 ,  Y10T436/177692 ,  Y10T436/178459 ,  Y10T436/179228 ,  Y10T436/186 ,  Y10T436/20 ,  Y10T436/204998 ,  Y10T436/205831 ,  Y10T436/207497

摘要： An analyzer compensates for gas flow perturbations by providing a makeup flow of carrier gas (60) to maintain the pressure and/or flow rate of analyte and inert gas through a detector (26) constant such that a accurate determination of a low concentration of an analyte in the presence of a high concentration of a second analyte can be accurately determined. In one embodiment, a carrier gas is introduced through a valve (64) responsive to the detected pressure (66) in the gas flow stream (65) between a scrubber (22) and a subsequent detector (26) for maintaining the pressure constant during an analysis. In another embodiment of the invention, a flow transducer (76) is positioned in the gas flow path between the scrubber (22) and detector (26) and coupled to a flow control valve coupled to introduce carrier gas as a function of detected gas flow such that the flow rate of gas into the detector is maintained constant.

摘要翻译： 分析器通过提供载气（60）的补充流量来补偿气体流动扰动，以维持分析物和惰性气体通过检测器（26）的压力和/或流速恒定，使得精确测定低浓度的 在高浓度第二分析物存在下分析物可以被准确地确定。 在一个实施例中，响应于在洗涤器（22）和随后的检测器（26）之间的气体流（65）中的检测压力（66），通过阀（64）引入载气，以在 分析。 在本发明的另一个实施例中，流量传感器（76）被定位在洗涤器（22）和检测器（26）之间的气体流动路径中并且耦合到流量控制阀，该流量控制阀被耦合以引入作为检测到的气体流量的函数的载气 使得进入检测器的气体的流量保持恒定。

公开(公告)号：EP0986750A1

公开(公告)日：2000-03-22

申请号：EP98909054.3

申请日：1998-03-09

申请人： UNIVERSITY OF PITTSBURGH OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION

发明人： ASHER, Sanford, A. ,  HOLTZ, John, H.

IPC分类号： G01N33/00 ,  G01N33/48 ,  G01N33/50

CPC分类号： B01J13/00 ,  B01J13/0065 ,  G01J3/18 ,  G01N21/4788 ,  G01N21/77 ,  G01N31/222 ,  G01N2021/772 ,  G01N2021/7723 ,  G02B26/002 ,  Y10S436/805 ,  Y10S436/811 ,  Y10T436/144444 ,  Y10T436/204998 ,  Y10T436/205831 ,  Y10T436/207497 ,  Y10T436/209163

摘要： Novel sensor devices composed of a crystalline colloidal array (CCA) polymerized in a hydrogel are disclosed. The hydrogels are characterized as being capable of shrinking and swelling in response to specific stimuli applied thereto. As the hydrogels shrink or swell, the lattice structure of the CCA embedded therein changes, thereby changing the wavelength of light diffracted by the CCA. Thus by monitoring the change in diffracted wavelength, the concentration of a stimulus is determined. The gels can be modified to sense numerous different stimuli. The sensor devices are specific in that they are modified to react with only one species or family of species. These sensors have various applications in areas including, for example, environmental and chemical systems, chemomechanical systems, sensor devices and medical diagnostic tools. Various methods for making and using these devices are also disclosed.

公开(公告)号：EP0919810A1

公开(公告)日：1999-06-02

申请号：EP98118506.9

申请日：1998-09-30

申请人： Siemens-Elema AB

发明人： Castor, Rolf

IPC分类号： G01N33/00 ,  G01N27/74

CPC分类号： G01N33/0011 ,  Y10T436/207497

摘要： The invention relates to a gas analyser (2), comprising a test chamber (8) for a gas sample, an inlet (6) for the gas sample and a gas sensor (16) sensitive to gas movement, for determining the concentration of a constituent gas in the gas sample. The inlet (6) is adapted to be connected to an inspiration line (22) of a respirator (18). When a shielding means (12) is arranged so it covers the inlet (6) of the test chamber (8), the gas sample remains relatively still inside the test chamber (8) during the analysis, regardless of the flow of the gas to be analysed. The gas analyser (2) can accordingly be devised for direct connection to the gas to be analysed.

摘要翻译： 本发明涉及一种气体分析仪（2），其包括用于气体样品的测试室（8），用于气体样品的入口（6）和对气体运动敏感的气体传感器（16），用于确定气体样品的浓度 气体样品中的成分气体。 入口（6）适于连接到呼吸器（18）的吸气管线（22）。 当屏蔽装置（12）被布置成覆盖测试室（8）的入口（6）时，气体样品在分析期间保持在测试室（8）内相对较靠近，而不管气体的流动如何 分析。 因此，可以设计气体分析器（2）以直接连接到待分析的气体。

公开(公告)号：EP0440815B1

公开(公告)日：1996-03-06

申请号：EP90912488.5

申请日：1990-08-27

申请人： Nippon Sanso Kabushiki Kaisha

发明人： SUZUKI, Takashi Nippon Sanso Kabushiki Kaisha ,  ITOH, Kenkichi Nippon Sanso Kabushiki Kaisha ,  SASAKI, Hajime Nippon Sanso Kabushiki Kaisha

IPC分类号： G01N21/76 ,  G01N21/77 ,  G01N21/75

CPC分类号： G01N21/766 ,  Y10T436/207497 ,  Y10T436/209163 ,  Y10T436/25625

摘要： This invention relates to a method of and device for measuring an extremely small quantity of oxygen in gas depending on the intensity of light generated when yellow phosphor vapor is reacted with oxygen in the sample gas. Together with the sample gas, a fixed quantity of oxygen is continously fed to the reaction chamber and reacted with yellow phosphor vapor so that the intensity of light generated by said reaction is measured. Density of oxygen in gas is found from the difference between a value of measured intensity of light and that of the intensity of light generated on reaction of yellow phosphor vapor with added oxygen, or from the difference between oxygen density obtained from the measured value and that of added oxygen. Addition of a fixed quantity of oxygen is performed in such process that pre-conditioned oxygen-containing gas is fed together with a fixed quantity of sample gas, or oxygen in the atmosphere is adapted to permeate an oxygen permeable film provided in the sample gas feeding system or in the yellow phosphor vapor feeding system. An extremely small quantity of oxygen under several ppb in the sample gas can continously be measured at high precision.

公开(公告)号：EP0655625A2

公开(公告)日：1995-05-31

申请号：EP94118687.6

申请日：1994-11-28

申请人： MINNESOTA MINING AND MANUFACTURING COMPANY

发明人： Yafuso, Masao, c/o Minnesota Mining and ,  Dektar, John L., c/o Minnesota Mining and ,  Pratt, Ronnie L., c/o Minnesota Mining and ,  Wood, Kenneth B., c/o Minnesota Mining and ,  Bretscher, Kathryn R., c/o Minnesota Mining and ,  Bentsen, James G., c/o Minnesota Mining and

IPC分类号： G01N33/52 ,  G01N33/84 ,  G01N31/22

CPC分类号： G01N33/52 ,  G01N31/223 ,  G01N33/84 ,  Y10T436/207497

摘要： Sensing elements, useful in sensing the concentration of a gas, e.g., carbon dioxide, in a medium, e.g. blood, and methods for making such sensing elements are disclosed. In one embodiment, the method comprises continuously placing a sensing composition precursor in contact with a continuous web, forming a continuous sensing composition from the precursor, and applying a continuous opaque film to the sensing composition. A plurality of individual sensing elements are formed from this composite structure. These sensing elements, which each have very similar sensing characteristics, are placed in a sensor fixture for use.

摘要翻译： 感测元件，可用于感测介质中气体（例如二氧化碳）的浓度，例如二氧化碳。 血液和制造这种感测元件的方法被公开。 在一个实施方案中，该方法包括将感测组合物前体连续地放置成与连续纤维网接触，从前体形成连续的感测组合物，以及向感测组合物施加连续的不透明膜。 从该复合结构形成多个单独的感测元件。 这些感测元件（每个具有非常相似的感测特性）被放置在传感器夹具中以供使用。

公开(公告)号：EP0276858B1

公开(公告)日：1994-04-27

申请号：EP88101253.8

申请日：1988-01-28

申请人： JAPAN OXYGEN CO., LTD.

发明人： Suzuki, Takashi ,  Akiyama, Teruo

IPC分类号： G01N21/76

CPC分类号： G01N21/766 ,  Y10T436/207497 ,  Y10T436/209163

公开(公告)号：EP0440815A4

公开(公告)日：1992-10-14

申请号：EP90912488

申请日：1990-08-27

申请人： NIPPON SANSO KABUSHIKI KAISHA

发明人： SUZUKI, TAKASHI NIPPON SANSO KABUSHIKI KAISHA ,  ITOH, KENKICHI NIPPON SANSO KABUSHIKI KAISHA ,  SASAKI, HAJIME NIPPON SANSO KABUSHIKI KAISHA

IPC分类号： G01N21/76 ,  G01N21/77 ,  G01N31/00 ,  G01N21/75

CPC分类号： G01N21/766 ,  Y10T436/207497 ,  Y10T436/209163 ,  Y10T436/25625

摘要： This invention relates to a method of and device for measuring an extremely small quantity of oxygen in gas depending on the intensity of light generated when yellow phosphor vapor is reacted with oxygen in the sample gas. Together with the sample gas, a fixed quantity of oxygen is continously fed to the reaction chamber and reacted with yellow phosphor vapor so that the intensity of light generated by said reaction is measured. Density of oxygen in gas is found from the difference between a value of measured intensity of light and that of the intensity of light generated on reaction of yellow phosphor vapor with added oxygen, or from the difference between oxygen density obtained from the measured value and that of added oxygen. Addition of a fixed quantity of oxygen is performed in such process that pre-conditioned oxygen-containing gas is fed together with a fixed quantity of sample gas, or oxygen in the atmosphere is adapted to permeate an oxygen permeable film provided in the sample gas feeding system or in the yellow phosphor vapor feeding system. An extremely small quantity of oxygen under several ppb in the sample gas can continously be measured at high precision.

公开(公告)号：EP0251475B1

公开(公告)日：1992-09-09

申请号：EP87304539.7

申请日：1987-05-21

申请人： Becton, Dickinson and Company

发明人： Wagner, Daniel B.

IPC分类号： C12Q1/54

CPC分类号： G01N21/7703 ,  C12M21/18 ,  C12M23/20 ,  C12Q1/54 ,  G01N21/6428 ,  G01N2021/6484 ,  G01N2021/772 ,  G01N2021/7786 ,  Y10S436/80 ,  Y10S436/805 ,  Y10S436/904 ,  Y10T436/144444 ,  Y10T436/207497 ,  Y10T436/209163

公开(公告)号：EP0240668B1

公开(公告)日：1992-07-29

申请号：EP87101864.4

申请日：1987-02-11

申请人： International Business Machines Corporation

发明人： Miller, Donald A.

IPC分类号： G01N21/88 ,  G01N27/42 ,  H01L21/66 ,  G01N21/35 ,  G01R31/26

CPC分类号： G01R31/2656 ,  Y10T436/207497