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    GAS ANALYZER
    1.
    发明申请
    GAS ANALYZER 有权
    气体分析仪

    公开(公告)号：US20120057160A1

    公开(公告)日：2012-03-08

    申请号：US12872207

    申请日：2010-08-31

    申请人： Georgiy G. Burba ,  Daniel J. Anderson ,  Michael D. Furtaw ,  Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    发明人： Georgiy G. Burba ,  Daniel J. Anderson ,  Michael D. Furtaw ,  Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    IPC分类号： G01N21/59

    CPC分类号： G01N21/3504 ,  G01K13/02 ,  G01K2013/024 ,  G01N1/2247 ,  G01N21/05 ,  G01N2201/0245

    摘要： Gas analyzer systems and methods for determining gas flux in a short intake tube configuration without using any Webb-Pearman-Leuning density correction. Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.

    摘要翻译： 气体分析仪系统和方法，用于确定短进气管配置中的气体通量，而不使用任何Webb-Pearman-Leuning密度校正。 气体分析仪系统和测量气体浓度的方法，特别是气体组分的干摩尔分数。 这些系统和方法允许快速测量多种环境监测应用的气体密度和/或气体的干摩尔分数，包括高速通量测量。 新的耦合设计允许无需移除封闭流动通道的电池，从而可以对光学部件进行现场清洁。

    Gas analyzer
    2.
    发明授权
    Gas analyzer 有权
    气体分析仪

    公开(公告)号：US08130379B1

    公开(公告)日：2012-03-06

    申请号：US12872207

    申请日：2010-08-31

    申请人： Georgiy G. Burba ,  Daniel J. Anderson ,  Michael D. Furtaw ,  Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    发明人： Georgiy G. Burba ,  Daniel J. Anderson ,  Michael D. Furtaw ,  Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    IPC分类号： G01N21/00

    CPC分类号： G01N21/3504 ,  G01K13/02 ,  G01K2013/024 ,  G01N1/2247 ,  G01N21/05 ,  G01N2201/0245

    摘要： Gas analyzer systems and methods for determining gas flux in a short intake tube configuration without using any Webb-Pearman-Leuning density correction. Gas analyzer systems and methods for measuring concentrations of gasses and in particular dry mole fraction of components of a gas. The systems and method allow for rapid measurement of the gas density and/or dry mole fraction of gases for a number of environmental monitoring applications, including high speed flux measurements. A novel coupling design allows for tool-free removal of a cell enclosing a flow path to enable in field cleaning of optical components.

    摘要翻译： 气体分析仪系统和方法，用于确定短进气管配置中的气体通量，而不使用任何Webb-Pearman-Leuning密度校正。 气体分析仪系统和测量气体浓度的方法，特别是气体组分的干摩尔分数。 这些系统和方法允许快速测量多种环境监测应用的气体密度和/或气体的干摩尔分数，包括高速通量测量。 新的耦合设计允许无需移除封闭流动通道的电池，从而可以对光学部件进行现场清洁。

    Apparatus and method for simultaneous measurement of carbon dioxide and water
    7.
    发明授权
    Apparatus and method for simultaneous measurement of carbon dioxide and water 失效
    用于同时测量二氧化碳和水的装置和方法

    公开(公告)号：US5457320A

    公开(公告)日：1995-10-10

    申请号：US279959

    申请日：1994-07-25

    申请人： Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    发明人： Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    IPC分类号： G01N21/35 ,  G01N21/61 ,  G01N21/05

    CPC分类号： G01N21/3504

    摘要： To measure water vapor and carbon dioxide, a gas analyzer includes a light source, a reference flow cell, a sample flow cell, a detector and a source of gas. The light source, flow cells and detector are arranged so that the detector detects light transmitted from said light source through the flow cells. The flow cells have folded paths for the light. A reference signal is subtracted from a sample signal to obtain an independant variable. Carbon dioxide and air mixed with carbon dioxide are supplied as required. The carbon dioxide is supplied from a container through capillary tubes. Heat is applied to the tubes to control the flow rate. A signal representing gross concentration of the carbon dioxide as a dependant variable is obtained from said independent variable from an empirically determined polynomial.

    摘要翻译： 为了测量水蒸气和二氧化碳，气体分析仪包括光源，参考流动池，样品流动池，检测器和气体源。 光源，流通池和检测器被布置成使得检测器检测从所述光源透过流动池的光。 流动池具有用于光的折叠路径。 从采样信号中减去参考信号以获得独立变量。 根据需要提供二氧化碳和二氧化碳混合空气。 二氧化碳从容器通过毛细管供应。 对管进行加热以控制流速。 根据经验确定的多项式从所述独立变量获得表示作为因变量的二氧化碳总浓度的信号。

    Apparatus and method for analyzing gas
    8.
    发明授权
    Apparatus and method for analyzing gas 失效
    用于分析气体的装置和方法

    公开(公告)号：US5340987A

    公开(公告)日：1994-08-23

    申请号：US843908

    申请日：1992-02-27

    申请人： Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    发明人： Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    IPC分类号： G01N21/35 ,  G01N21/61 ,  G01N21/00 ,  G01N21/05

    CPC分类号： G01N21/3504

    摘要： To measure water vapor and carbon dioxide, a gas analyzer includes a light source, a reference flow cell, a sample flow cell, a detector and a source of gas. The light source, flow cells and detector are arranged so that the detector detects light transmitted from said light source through the flow cells. The flow cells have folded paths for the light. A reference signal is subtracted from a sample signal to obtain an independant variable. Carbon dioxide and air mixed with carbon dioxide are supplied as required. The carbon dioxide is supplied from a container through capillary tubes. Heat is applied to the tubes to control the flow rate. A signal representing gross concentration of the carbon dioxide as a dependant variable is obtained from said independent variable from an empirically determined polynomial.

    摘要翻译： 为了测量水蒸气和二氧化碳，气体分析仪包括光源，参考流动池，样品流动池，检测器和气体源。 光源，流通池和检测器被布置成使得检测器检测从所述光源透过流动池的光。 流动池具有用于光的折叠路径。 从采样信号中减去参考信号以获得独立变量。 根据需要提供二氧化碳和二氧化碳混合空气。 二氧化碳从容器通过毛细管供应。 对管进行加热以控制流速。 根据经验确定的多项式从所述独立变量获得表示作为因变量的二氧化碳总浓度的信号。

    Gas analyzing apparatus and method for simultaneous measurement of carbon dioxide and water
    9.
    发明授权
    Gas analyzing apparatus and method for simultaneous measurement of carbon dioxide and water 失效
    用于同时测量二氧化碳和水的气体分析装置和方法

    公开(公告)号：US5332901A

    公开(公告)日：1994-07-26

    申请号：US670342

    申请日：1991-03-15

    申请人： Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    发明人： Robert D. Eckles ,  Dayle K. McDermitt ,  Jonathan M. Welles

    IPC分类号： G01N21/35 ,  G01N21/05

    CPC分类号： G01N21/3504

    摘要： To measure water vapor and carbon dioxide, a gas analyzer includes a light source, a reference flow cell, a sample flow cell, and a detector. The light source, flow cells and detector are arranged so that the detector detects light transmitted from said light source through said reference flow cell and through said sample flow cell and generates a reference signal representing the light transmitted through a reference gas in said reference flow cell and a sample signal representing the light transmitted through a sample gas in said sample flow cell. The reference signal is subtracted from the sample signal to obtain an independant variable. A signal representing gross concentration of the carbon dioxide as a dependant variable is obtained from said independent variable from a stored empirically determined third power polynomial. The polynomial includes terms having at least first, second and third powers of said independant variable. Each of these terms includes a coefficient determined empirically so that values of the dependant variable, gross concentration, can be determined for different independant variables.

    摘要翻译： 为了测量水蒸汽和二氧化碳，气体分析仪包括光源，参考流通池，样品流通池和检测器。 光源，流通池和检测器被布置成使得检测器检测从所述光源通过所述参考流动池传输的光并通过所述样品流动池，并产生表示透过所述参考流动池中的参考气体的光的参考信号 以及表示透过所述样品流动池中的样品气体的光的样本信号。 从采样信号中减去参考信号以获得独立变量。 从存储的经验确定的第三幂多项式从所述独立变量获得表示作为因变量的二氧化碳总浓度的信号。 多项式包括具有所述独立变量的至少第一，第二和第三幂的项。 这些术语中的每一个都包括经验确定的系数，从而可以为不同的独立变量确定因变量，总浓度的值。

    GAS EXCHANGE SYSTEM FLOW CONFIGURATION
    10.
    发明申请
    GAS EXCHANGE SYSTEM FLOW CONFIGURATION 有权
    气体交换系统流量配置

    公开(公告)号：US20120073355A1

    公开(公告)日：2012-03-29

    申请号：US13240613

    申请日：2011-09-22

    申请人： Mark Johnson ,  Robert D. Eckles ,  Dayle K. McDermitt

    发明人： Mark Johnson ,  Robert D. Eckles ,  Dayle K. McDermitt

    IPC分类号： G01N1/00

    CPC分类号： G01N33/0031 ,  A01G7/00 ,  G01F1/05 ,  G01N21/3504 ,  G01N33/004 ,  G01N33/0098 ,  G01N2021/3513

    摘要： Active compensation designs to offset the impact of gas diffusion sources and sinks in a photosynthesis and transpiration measurement system are disclosed. A sensor head for use in a gas exchange analysis system includes an active, piezoelectric flow splitting device for splitting a flow between a sample chamber and bypass pathway. The active flow splitting device is controlled by feedback from a downstream flow meter. A continuous measurement system for rapidly and accurately surveying large numbers of samples is described.

    摘要翻译： 公开了用于抵消气体扩散源和水槽在光合作用和蒸腾测量系统中的影响的主动补偿设计。 用于气体交换分析系统的传感器头包括用于分离样品室和旁路通路之间的流动的主动压电流分流装置。 主动分流装置由来自下游流量计的反馈控制。 描述了用于快速和准确地测量大量样品的连续测量系统。