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    DYNAMIC RECONSTRUCTION OF A CALIBRATION STATE OF AN ABSORPTION SPECTROMETER
    11.
    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。

    REACTIVE GAS DETECTION IN COMPLEX BACKGROUNDS
    12.
    发明申请
    REACTIVE GAS DETECTION IN COMPLEX BACKGROUNDS 审中-公开
    复杂背景下的反应性气体检测

    公开(公告)号：WO2008128114A1

    公开(公告)日：2008-10-23

    申请号：PCT/US2008/060128

    申请日：2008-04-11

    Applicant: SPECTRASENSORS, INC. ,  ZHOU, Xin ,  LIU, Xiang ,  FEITISCH, Alfred ,  SANGER, Gregory, M.

    Inventor： ZHOU, Xin ,  LIU, Xiang ,  FEITISCH, Alfred ,  SANGER, Gregory, M.

    IPC: G01N21/35

    CPC classification number: G01N21/3504 ,  G01N2021/3545 ,  G01N2021/399 ,  G01N2201/1215

    Abstract: A differential absorption spectrum for a reactive gas in a gas mixture can be generated for sample absorption data by subtracting background absorption data set from the sample absorption data. The background absorption data can be characteristic of absorption characteristics of the background composition in a laser light scan range that includes a target wavelength. The differential absorption spectrum can be converted to a measured concentration of the reactive gas using calibration data. A determination can be made whether the background composition has substantially changed relative to the background absorption data, and new background absorption data can be used if the background composition has substantially changed. Related systems, apparatus, methods, and/or articles are also described..

    Abstract translation: 可以通过从样品吸收数据中减去设置的背景吸收数据，为样品吸收数据产生气体混合物中的反应气体的差分吸收光谱。 背景吸收数据可以是包括目标波长的激光扫描范围中背景组合物的吸收特性的特征。 使用校准数据可以将差示吸收光谱转换为测量的反应气体浓度。 可以确定背景组合物是否相对于背景吸收数据基本上改变，并且如果背景组合物已经基本上改变，则可以使用新的背景吸收数据。 还描述了相关系统，装置，方法和/或物品。

    DETECTION OF MOISTURE IN REFRIGERANTS
    13.
    发明申请
    DETECTION OF MOISTURE IN REFRIGERANTS 审中-公开

    公开(公告)号：WO2008048994A3

    公开(公告)日：2008-04-24

    申请号：PCT/US2007/081617

    申请日：2007-10-17

    Applicant: SPECTRASENSORS, INC. ,  ZHOU, Xin ,  LIU, Xiang ,  SANGER, Gregory, M.

    Inventor： ZHOU, Xin ,  LIU, Xiang ,  SANGER, Gregory, M.

    IPC: G01N21/35 ,  G01N21/39

    Abstract: Moisture can be detected in a refrigerant background such as HFC (Hydroflurocarbon) HFC-134A and HFC-152A and exampled by HFC-23, HFC-32, HFC-143A, HFC-125, HFC-245FA, HFC-227EA, and the like. The system can include a light source operating at any one of several wavelengths within the water absorption bands at wavelengths such as 1.4, 1.9 and 2.7 μm and a detector that measures the transmitted light intensity through the HFC samples. In one variation, the light source is a tunable diode laser and the moisture level is determined by direct absorption and harmonic spectroscopy. Related techniques, apparatus, systems, and articles are also described.

    DETERMINATION AND CORRECTION OF FREQUENCY REGISTRATION DEVIATIONS FOR QUANTITATIVE SPECTROSCOPY
    15.
    发明申请
    DETERMINATION AND CORRECTION OF FREQUENCY REGISTRATION DEVIATIONS FOR QUANTITATIVE SPECTROSCOPY 审中-公开
    用于定量光谱的频率注册偏差的确定和校正

    公开(公告)号：WO2017023978A1

    公开(公告)日：2017-02-09

    申请号：PCT/US2016/045259

    申请日：2016-08-03

    Applicant: SPECTRASENSORS, INC.

    Inventor： LIU, Xiang ,  YEH, Gary ,  CHAIMOWTIZ, Adam, S. ,  JENKO, William ,  FEITISCH, Alfred

    IPC: G01J3/28 ,  G01N21/27

    CPC classification number: G01J3/28 ,  G01J2003/283 ,  G01J2003/2866 ,  G01N21/274 ,  G01N21/39

    Abstract: A frequency registration deviation is quantified for a field spectrum collected during analysis by a spectroscopic analysis system of a sample fluid when the spectroscopic analysis system has deviated from a standard calibration state. The field spectrum is corrected based on the frequency registration deviation using at least one spectral shift technique, and a concentration is calculated for at least one analyte represented by the field spectrum using the corrected field spectrum. Related systems, methods, and articles are described.

    Abstract translation: 当光谱分析系统偏离标准校准状态时，通过样品流体的光谱分析系统在分析期间收集的场光谱量化频率对准偏差。 使用至少一个光谱偏移技术，基于频率配准偏差校正场频谱，并且使用校正的场频谱计算由场频谱表示的至少一个分析物的浓度。 描述相关系统，方法和文章。

    SPECTROMETER WITH VARIABLE BEAM POWER AND SHAPE
    16.
    发明申请
    SPECTROMETER WITH VARIABLE BEAM POWER AND SHAPE 审中-公开
    具有可变光束功率和形状的光谱仪

    公开(公告)号：WO2016028403A1

    公开(公告)日：2016-02-25

    申请号：PCT/US2015/039686

    申请日：2015-07-09

    Applicant: SPECTRASENSORS, INC.

    Inventor： FEITISCH, Alfred ,  LIU, Xiang ,  CHANG, Chih-Husan ,  HUANG, Hsu-Hung

    IPC: G01J3/42

    CPC classification number: G01J3/0291 ,  G01J3/027 ,  G01J3/42

    Abstract: At least one light source is configured to emit at least one beam into a sample volume of an absorbing medium. In addition, at least one detector is positioned to detect at least a portion of the beam emitted by the at least one light source. Further, at least one beam modification element is positioned between the at least one detector and the at least one light source to selectively change at least one of (i) a power intensity of, or (ii) a shape of the beam emitted by the at least one light source as detected by the at least one detector. A control circuit is coupled to the beam modification element. Related apparatus methods, articles of manufacture, systems, and the like are described.

    Abstract translation: 至少一个光源被配置为将至少一个光束发射到吸收介质的样品体积中。 另外，至少一个检测器被定位成检测由至少一个光源发射的光束的至少一部分。 此外，至少一个光束修改元件位于所述至少一个检测器和所述至少一个光源之间，以选择性地改变以下中的至少一个：（i）由所述至少一个光源发射的光束的形状的功率强度或（ii） 由所述至少一个检测器检测的至少一个光源。 控制电路耦合到光束修改元件。 描述了相关的装置方法，制品，系统等。

    SCRUBBER FOR REACTIVE GASSES
    17.
    发明申请
    SCRUBBER FOR REACTIVE GASSES 审中-公开
    活性气体洗涤器

    公开(公告)号：WO2009029876A2

    公开(公告)日：2009-03-05

    申请号：PCT/US2008/074900

    申请日：2008-08-29

    Applicant: SPECTRASENSORS, INC. ,  BAUM, Marc, M. ,  MOSS, John ,  FEITISCH, Alfred ,  ZHOU, Xin ,  LIU, Xiang ,  KWAN, Alex

    Inventor： BAUM, Marc, M. ,  MOSS, John ,  FEITISCH, Alfred ,  ZHOU, Xin ,  LIU, Xiang ,  KWAN, Alex

    IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

    CPC classification number: B01D53/685 ,  B01D53/42 ,  B01D53/52 ,  B01D53/58 ,  B01D2251/512 ,  B01D2251/602 ,  B01D2251/606 ,  B01D2259/40

    Abstract: Scrubber media for reactive gases, that can include but are not necessarily limited to hydrogen chloride (HCl), hydrogen sulfide (H2S), hydrogen fluoride (HF), and ammonia (NH3), can include reactive particles, potentially as small as nano-scale, that can optionally be suspended on macro-scale carrier particles. Reactive gases can be converted to non-volatile compounds by being passed through a bed of such scrubber media. Such scrubber media can be used to remove reactive gases from gas mixtures. Potential applications include differential absorption spectroscopy, air pollutant emission controls, and the like. Methods of preparing scrubber media are also described.

    Abstract translation: 可包括但不一定限于氯化氢（HCl），硫化氢（H 2 S），氟化氢（HF）和氨（NH 3）的反应气体的洗涤器介质可包括反应性气体 可能与纳米尺度一样小的颗粒，其可以任选地悬浮在宏观尺度的载体颗粒上。 反应性气体可以通过穿过这种洗涤器介质床而转化为非挥发性化合物。 这种洗涤器介质可以用来从气体混合物中除去反应气体。 潜在的应用包括差示吸收光谱，空气污染物排放控制等。 还描述了制备洗涤器介质的方法。

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