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    OPTICAL ABSORBANCE MEASUREMENTS WITH SELF-CALIBRATION AND EXTENDED DYNAMIC RANGE
    161.
    发明专利
    OPTICAL ABSORBANCE MEASUREMENTS WITH SELF-CALIBRATION AND EXTENDED DYNAMIC RANGE 未知

    公开(公告)号：CA2765280A1

    公开(公告)日：2010-12-16

    申请号：CA2765280

    申请日：2010-06-11

    Applicant: SPECTRASENSORS INC

    Inventor： LIU XIANG ,  FEITISCH ALFRED ,  ZHOU XIN

    IPC: G01J3/42 ,  G01N21/25

    Abstract: Detector data representative of an intensity of light that impinges on a detector after being emitted from a light source and passing through a gas over a path length can be analyzed using a first analysis method to obtain a first calculation of an analyte concentration in the volume of gas and a second analysis method to obtain a second calculation of the analyte concentration. The second calculation can be promoted as the analyte concentration upon determining that the analyte concentration is out of a first target range for the first analysis method.

    DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER
    167.
    发明申请
    DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER 审中-公开
    吸收光谱仪校准状态的动态重建

    公开(公告)号：WO2015167961A1

    公开(公告)日：2015-11-05

    申请号：PCT/US2015/027574

    申请日：2015-04-24

    Applicant: SPECTRASENSORS, INC.

    Inventor： LIU, Xiang ,  LEWISON, John ,  JI, Wenhai ,  FEITISCH, Alfred

    IPC: G01N21/3504 ,  G01J3/28 ,  G01J3/42 ,  G01N21/27 ,  G01N21/39 ,  G01J3/433 ,  G01N21/03 ,  G01N33/00

    CPC classification number: G01N21/39 ,  G01J3/433 ,  G01J2003/2873 ,  G01N21/031 ,  G01N21/274 ,  G01N21/3504 ,  G01N2021/399 ,  G01N2201/127

    Abstract: A reference harmonic absorption curve of a laser absorption spectrometer can have a reference curve shape derived from a reference signal generated by the detector in response to light passing from the laser light source through a reference gas or gas mixture. The reference gas or gas mixture can include one or more of a target analyte and a background gas expected to be present during analysis of the target analyte. One or more portions of a test harmonic absorption curve having a test curve shape is compared with one or more portions of the reference harmonic absorption curve arising due to absorption of the background gases and not by absorption of the target analyte. Operating and/or analytical parameters of the laser absorption spectrometer are adjusted to correct the test curve shape to reduce the difference between the test curve shape and the reference curve shape.

    Abstract translation: 激光吸收光谱仪的参考谐波吸收曲线可以具有根据由检测器响应于从激光源通过参考气体或气体混合物的光而产生的参考信号导出的参考曲线形状。 参考气体或气体混合物可以包括目标分析物和预期在目标分析物的分析期间存在的背景气体中的一种或多种。 将具有测试曲线形状的测试谐波吸收曲线的一个或多个部分与由于背景气体的吸收而不是通过吸收目标分析物而产生的参考谐波吸收曲线的一个或多个部分进行比较。 调整激光吸收光谱仪的操作和/或分析参数以校正测试曲线形状，以减小测试曲线形状与参考曲线形状之间的差异。

    REDUCED VOLUME SPECTROSCOPIC SAMPLE CELL
    168.
    发明申请
    REDUCED VOLUME SPECTROSCOPIC SAMPLE CELL 审中-公开
    减少体积的光谱样品细胞

    公开(公告)号：WO2015069934A2

    公开(公告)日：2015-05-14

    申请号：PCT/US2014/064405

    申请日：2014-11-06

    Applicant: SPECTRASENSORS, INC.

    Inventor： SCOTT, Peter ,  FEITISCH, Alfred ,  DORN, Peter ,  CHAIMOWITZ, Adam, S. ,  HUANG, Hsu-hung ,  SCHREMPEL, Mthias ,  KELLER, Lutz

    IPC: G01J3/42 ,  G01N21/27 ,  G01N21/01

    CPC classification number: G01N21/031 ,  G01J3/42 ,  G01J2003/423 ,  G01N21/01 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/27 ,  G01N2021/0307 ,  G01N2201/06113

    Abstract: A sample cell can be designed to minimize excess gas volume. Described features can be advantageous in reducing an amount of gas required to flow through the sample cell during spectroscopic measurements, and in reducing a time (e.g. a total volume of gas) required to flush the cell between sampling events. In some examples, contours of the inners surfaces of the sample cell that contact the contained gas can be shaped, dimensioned, etc. such that a maximum clearance distance is provided between the inner surfaces at one or more locations. Systems, methods, and articles, etc. are described.

    Abstract translation: 可以设计样品池以最小化过量气体体积。 所描述的特征可以有利于在光谱测量期间减少流过样品池所需的气体量，并且减少在取样事件之间冲洗电池所需的时间（例如总体积的气体）。 在一些示例中，接触所容纳的气体的样品池的内部表面的轮廓可以成形，定尺寸等，使得在一个或多个位置处的内表面之间提供最大间隙距离。 描述系统，方法和物品等。

    OPTICAL REFLECTORS FOR SPECTROMETER GAS CELLS
    169.
    发明申请
    OPTICAL REFLECTORS FOR SPECTROMETER GAS CELLS 审中-公开
    用于光谱仪气体细胞的光反射器

    公开(公告)号：WO2014093665A1

    公开(公告)日：2014-06-19

    申请号：PCT/US2013/074749

    申请日：2013-12-12

    Applicant: SPECTRASENSORS, INC.

    Inventor： KELLER, Lutz ,  FEITISCH, Alfred ,  SCOTT, Peter ,  SCHREMPEL, Mathias ,  ST.JOHN, Nathan

    IPC: G01N21/03 ,  G01N21/09

    CPC classification number: G01N21/0303 ,  G01J3/42 ,  G01N21/031 ,  G01N21/09 ,  G01N21/3504

    Abstract: A spectrometer cell can include a spacer, at least one end cap, and at least one mirror with a reflective surface. The end cap can be positioned proximate to a first contact end of the spacer such that the end cap and spacer at least partially enclose an internal volume of the spectrometer cell. The mirror can be secured in place by a mechanical attachment that may include attachment materials that are chemically inert to at least one reactive gas compound, be thermally stable above at least 120 °C, and be capable of holding an optical axis of the reflective surface in a fixed orientation relative to other components of the spectrometer cell and or a spectrometer device that comprises the spectrometer cell. The mirror can optionally be constructed of a material such as stainless steel, copper, aluminum, alumino-silicate, ceramic, or the like. Related methods, articles of manufacture, systems, etc. are described.

    Abstract translation: 光谱仪单元可以包括间隔物，至少一个端盖和至少一个具有反射表面的反射镜。 端盖可以定位成靠近隔离件的第一接触端，使得端盖和间隔件至少部分地包围光谱仪单元的内部体积。 反射镜可以通过机械附件固定在适当位置，机械附件可以包括对至少一种反应性气体化合物具有化学惰性的附着材料，在至少120℃以上是热稳定的，并且能够保持反射表面的光轴 相对于光谱仪单元的其它部件为固定的取向，或包含光谱仪单元的光谱仪装置。 镜子可任选地由诸如不锈钢，铜，铝，铝硅酸盐，陶瓷等的材料构成。 描述了相关方法，制品，系统等。

    DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER
    170.
    发明申请
    DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER 审中-公开
    吸收光谱仪校准状态的动态重建

    公开(公告)号：WO2012054886A1

    公开(公告)日：2012-04-26

    申请号：PCT/US2011/057370

    申请日：2011-10-21

    Applicant: SPECTRASENSORS, INC. ,  LIU, Xiang ,  LEWISON, John ,  JI, Wenhai ,  FEITISCH, Alfred

    Inventor： LIU, Xiang ,  LEWISON, John ,  JI, Wenhai ,  FEITISCH, Alfred

    IPC: G01N21/35 ,  G01N21/61 ,  G01N21/31 ,  G01N21/39

    CPC classification number: G01J3/28 ,  G01J3/42 ,  G01N21/031 ,  G01N21/274 ,  G01N21/31 ,  G01N21/3504 ,  G01N21/3518 ,  G01N21/39 ,  G01N2021/399

    Abstract: A reference harmonic absorption curve of a laser absorption spectrometer, which can include a tunable or scannable laser light source and a detector, can have a reference curve shape and can include a first, second, or higher order harmonic signal of a reference signal generated by the detector in response to light passing from the laser light source through a reference gas or gas mixture. The reference gas or gas mixture can include one or more of a target analyte and a background gas expected to be present during analysis of the target analyte. The reference harmonic absorption curve can have been determined for the laser absorption spectrometer in a known or calibrated state. A test harmonic absorption curve having a test curve shape is compared with the reference harmonic absorption curve to detect a difference between the test curve shape and the reference curve shape that exceeds a predefined allowed deviation and therefore indicates a change in an output of the laser light source relative to the known or calibrated state. One or more operating and/or analytical parameters of the laser absorption spectrometer are adjusted to correct the test curve shape to reduce the difference between the test curve shape and the reference curve shape.

    Abstract translation: 可以包括可调谐或可扫描的激光光源和检测器的激光吸收光谱仪的参考谐波吸收曲线可以具有参考曲线形状，并且可以包括由第一，第二或更高次谐波信号产生的参考信号 检测器响应于从激光源通过参考气体或气体混合物的光。 参考气体或气体混合物可以包括目标分析物和预期在目标分析物的分析期间存在的背景气体中的一种或多种。 参考谐波吸收曲线可以在已知或校准状态下为激光吸收光谱仪确定。 将具有测试曲线形状的测试谐波吸收曲线与参考谐波吸收曲线进行比较，以检测超过预定义的允许偏差的测试曲线形状和参考曲线形状之间的差异，因此表示激光输出的变化 源相对于已知或校准状态。 调整激光吸收光谱仪的一个或多个操作和/或分析参数以校正测试曲线形状，以减小测试曲线形状与参考曲线形状之间的差异。

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