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    Emission detection systems for determining the presence of contaminants
    1.
    发明授权
    Emission detection systems for determining the presence of contaminants 失效
    用于确定污染物存在的排放检测系统

    公开(公告)号：US5558836A

    公开(公告)日：1996-09-24

    申请号：US316905

    申请日：1994-10-03

    申请人： David P. Rounbehler ,  Dirk Appel ,  Daniel A. Dussault ,  Thomas M. Levine ,  Jonathan E. Bosworth

    发明人： David P. Rounbehler ,  Dirk Appel ,  Daniel A. Dussault ,  Thomas M. Levine ,  Jonathan E. Bosworth

    IPC分类号： G01N21/15 ,  G01N21/90

    CPC分类号： G01N21/15 ,  G01N21/9018

    摘要： A detection system for detecting the emission (i.e., the fluorescence or phosphorescence) from a contaminant contained in a sample gas. In order to keep the optics of the system clean and maintain a high signal-to-noise ratio in the detected signal, the detection system contains a housing separated into illumination and sample chambers by an aperture-containing partition. A sample inlet port is connected to the sample chamber, and a purge inlet port is connected to the illumination chamber to direct the purge and sample gasses into their respective chambers. A vacuum system is connected to a vacuum port on the sample chamber to simultaneously draw the sample and purge gasses into their chambers through the inlet ports; the purge gas is then drawn through the aperture and into the sample chamber. Finally, both gasses are drawn out of the sample chamber through the vacuum port. Thus, the vacuum provides a flow of sample gas into the sample chamber, and a flow of purge gas into the illumination chamber to reduce contact between the sample gas and a portion of the optics, thereby keeping them free of debris.

    摘要翻译： 一种用于从包含在样品气体中的污染物检测发射（即，荧光或磷光）的检测系统。 为了保持系统的光学系统清洁并且在检测到的信号中保持高的信噪比，检测系统包含通过孔径分隔分隔成照明和样品室的壳体。 样品入口连接到样品室，净化入口连接到照明室，以将吹扫和样品气体引导到它们各自的室中。 真空系统连接到样品室上的真空端口，以同时抽取样品并通过入口将气体吹扫到其室内; 吹扫气体然后被吸入孔中并进入样品室。 最后，气体都通过真空口从样品室中抽出。 因此，真空提供样品气体流入样品室，以及吹扫气体流入照明室，以减少样品气体和光学部件之间的接触，从而保持它们没有碎屑。

    Method and apparatus for detecting leaks in packaging
    2.
    发明授权
    Method and apparatus for detecting leaks in packaging 有权
    检测包装泄漏的方法和装置

    公开(公告)号：US6050133A

    公开(公告)日：2000-04-18

    申请号：US327858

    申请日：1999-06-08

    申请人： Eugene K. Achter ,  Jonathan E. Bosworth ,  Helmut Klotzsch

    发明人： Eugene K. Achter ,  Jonathan E. Bosworth ,  Helmut Klotzsch

    IPC分类号： A61L2/26 ,  A61L2/28 ,  G01M3/22 ,  G01M3/04

    CPC分类号： G01M3/229 ,  A61L2/28

    摘要： A method and apparatus are directed to non-destructive testing for a leak in a sealed package having an interior chamber formed of a gas-permeable portion and a non-gas-permeable portion. A temporary barrier having an aperture is formed to the gas-permeable portion to temporarily seal the gas-permeable portion of the sealed package except at the aperture. A tracer gas is applied through the aperture at the gas-permeable portion, whereby the tracer gas enters into the interior chamber. The concentration of tracer gas is measured at the exterior of the sealed package, thereby testing for a leak in the sealed package.

    摘要翻译： 一种方法和装置涉及在具有由透气部分和非透气部分形成的内部室的密封包装中的泄漏的非破坏性测试。 形成具有孔径的临时阻挡件，以便透气部分将密封包装的除透孔之外的透气部分暂时密封。 示踪气体通过气体渗透部分处的孔被施加，由此示踪气体进入内部室。 在密封包装的外部测量示踪气体的浓度，从而测试密封包装中的泄漏。