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    REMOTE SAMPLING BYPASS FOR A GAS ANALYSER
    2.
    发明申请
    REMOTE SAMPLING BYPASS FOR A GAS ANALYSER 有权
    用于气体分析仪的远程采样旁路

    公开(公告)号：US20160223436A1

    公开(公告)日：2016-08-04

    申请号：US15022914

    申请日：2013-10-11

    申请人： DRAEGER SAFETY, INC.

    发明人： Michael V. CARUSO ,  Eric J. ROBEY

    IPC分类号： G01N1/22

    CPC分类号： G01N1/2273 ,  G01N1/24 ,  G01N33/0016 ,  G01N2021/0193

    摘要： Described herein is a gas detection system (5) including a housing (10) having an inlet (20) in fluid communication with an atmosphere; an analyzer (25) within the housing (20) and configured to detect and measure a gas species in the atmosphere using a gas sensor (37); and a pneumatic system (60) contained within the housing (10) and in fluid communication with the inlet (20) to draw an air sample from the atmosphere. The pneumatic system (60) includes a pump (15); a low flow branch (65) in fluid communication with the pump (15) and having an airflow sensor (90) and a first orifice (85); and a high flow branch (70) in fluid communication with the pump (15) and having a second orifice (95). Such a system is particularly suitable for remote sampling because it prevents the high flow needed for remote sampling to be directed towards the gas sensor withstanding only low flow. Related apparatus, systems, methods and/or articles are described.

    摘要翻译： 这里描述了一种气体检测系统（5），包括具有与大气流体连通的入口（20）的壳体（10） 壳体（20）内的分析器（25），并且被配置为使用气体传感器（37）来检测和测量大气中的气体种类; 以及包含在所述壳体（10）内并与所述入口（20）流体连通以从大气抽出空气样本的气动系统（60）。 气动系统（60）包括泵（15）; 与所述泵（15）流体连通并具有气流传感器（90）和第一孔口（85）的低流量分支（65）; 以及与所述泵（15）流体连通并具有第二孔口（95）的高流量分支（70）。 这样的系统特别适用于远程采样，因为它防止远程采样所需的高流量仅通过低流量被引向气体传感器。 描述了相关装置，系统，方法和/或制品。

    Dynamic characterization of particles with flow cytometry
    4.
    发明授权
    Dynamic characterization of particles with flow cytometry 有权
    流式细胞术对颗粒的动态表征

    公开(公告)号：US08264683B2

    公开(公告)日：2012-09-11

    申请号：US12497281

    申请日：2009-07-02

    申请人： Thomas J. Matula ,  Jarred Swalwell

    发明人： Thomas J. Matula ,  Jarred Swalwell

    IPC分类号： G01N21/00

    CPC分类号： G01N21/49 ,  A61B5/0059 ,  A61B8/481 ,  G01N15/1459 ,  G01N21/01 ,  G01N21/70 ,  G01N33/15 ,  G01N2015/1493 ,  G01N2021/0193

    摘要： Flow cytometry concepts are modified to enable dynamic characterizations of particles to be obtained using optical scattering data. Particles in flow will be introduced into a sample volume. Light scattered by a particle in the sample volume is collected and analyzed. What differentiates the concepts disclosed herein from conventional flow cytometry is the use of an acoustic source that is disposed to direct acoustic energy into the sample volume. As the particle passes through the sample volume, it responds to the acoustic energy, causing changes in the light scattered by the particle. Those changes, which are not measured during conventional flow cytometry, can be analyzed to determine additional physical properties of the particle.

    摘要翻译： 流式细胞术概念被修改以使得能够使用光学散射数据获得的粒子的动态表征。 流入的颗粒将被引入样品体积。 收集并分析由样品体积中的颗粒散射的光。 将本文公开的概念与常规流式细胞术区分开来的是使用声源，其被设置为将声能引导到样本体积中。 当颗粒通过样品体积时，其响应于声能，引起颗粒散射的光的变化。 可以分析在常规流式细胞术中不测量的那些变化，以确定颗粒的附加物理性质。

    CHEMICAL ANALYSER
    5.
    发明申请
    CHEMICAL ANALYSER 有权
    化学分析仪

    公开(公告)号：US20120003124A1

    公开(公告)日：2012-01-05

    申请号：US13211943

    申请日：2011-08-17

    申请人： Stephen Charles Davis ,  John David Petty ,  John Thomas Huberts

    发明人： Stephen Charles Davis ,  John David Petty ,  John Thomas Huberts

    IPC分类号： G01N33/48

    CPC分类号： G01N31/16 ,  G01N21/01 ,  G01N21/75 ,  G01N21/79 ,  G01N35/1002 ,  G01N2021/0193 ,  G01N2021/8411 ,  G01N2035/1058 ,  Y10T436/193333

    摘要： A chemical analyser analyses a sample for a target chemical. The sample and reagent are added to a measurement cell until a detectable change is observed. A reference compound, which does not take part in the reaction between the target chemical and reagent, is added to the reagent. By measuring the concentration of the reference compound, the amount of reagent used may be determined. In one embodiment, a mechanism introduces the sample, adds reagent, mixes, cleans, and flushes the measurement cell, which incorporates a longitudinal chamber having inlets for the sample and reagent and an outlet for measured sample/reagent mixtures. A detector located in or adjacent to the chamber between the inlets and outlet and a piston movable in the chamber carries seals such that movement of a piston sequentially opens the inlets and expels the fluid. The analyzer also includes a device that delivers reagent to a measurement cell.

    摘要翻译： 化学分析仪分析目标化学品的样品。 将样品和试剂加入到测量池中，直至观察到可检测的变化。 将不参与目标化学品和试剂之间的反应的参考化合物加入到试剂中。 通过测量参考化合物的浓度，可以测定所用试剂的量。 在一个实施例中，机构引入样品，添加试剂，混合，清洗和冲洗测量池，其包含具有用于样品和试剂的入口的纵向室和用于测量的样品/试剂混合物的出口。 位于入口和出口之间或邻近腔室的检测器可在腔室中移动的活塞承载密封件，使得活塞的移动顺序地打开入口并排出流体。 分析仪还包括将试剂输送到测量单元的装置。

    FLOW CELL AND SYSTEM FOR SIMULTANEOUS MEASUREMENT OF ABSORBANCE AND EMISSION IN A SAMPLE
    10.
    发明申请
    FLOW CELL AND SYSTEM FOR SIMULTANEOUS MEASUREMENT OF ABSORBANCE AND EMISSION IN A SAMPLE 审中-公开

    公开(公告)号：US20170370826A1

    公开(公告)日：2017-12-28

    申请号：US15631618

    申请日：2017-06-23

    申请人： BioComp Instruments Inc.

    发明人： David Coombs

    IPC分类号： G01N21/05 ,  G01N21/03 ,  G01N21/01

    CPC分类号： G01N21/05 ,  G01N21/0303 ,  G01N2021/0193 ,  G01N2021/6482 ,  G01N2201/0627 ,  G01N2201/0806

    摘要： The flow cell of the present application simultaneously monitors and measures light absorbance and fluorescence of particles in a flowing liquid. The flow cell comprises a housing having a light input face, an absorbance output face and first and second emission output faces; a fluid flow section within the housing that comprises a bottom funnel through which fluid enters the flow cell, a core chamber into which fluid flows from the bottom funnel, and a top funnel into which fluid flows from the core chamber, wherein the bottom and top funnels each comprise a first end which extends at an angle to a second end that is wider in diameter than the first end, and said second end of each is adjacent to and aligned with the core chamber; and a center section within the housing center having a recess formed therein which houses the core chamber of the fluid flow section, wherein said center section comprises a first pair of opposing channels formed in the light input face and the absorbance output face, respectively, and a second pair of opposing channels formed in the first emission output face and the second emission output face and which are perpendicular to the first pair of opposing channels, and wherein the first pair of opposing channels and second pair of opposing channels are in communication with the core chamber. An apparatus comprising the flow cell is also provided.