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    Dynamic reconstruction of a calibration state of an absorption spectrometer
    32.
    发明授权
    Dynamic reconstruction of a calibration state of an absorption spectrometer 有权
    吸收光谱仪的校准状态的动态重建

    公开(公告)号：US09360415B2

    公开(公告)日：2016-06-07

    申请号：US14263942

    申请日：2014-04-28

    Applicant: SpectraSensors, Inc.

    Inventor： Xiang Liu ,  John Lewison ,  Wenhai Ji ,  Alfred Feitisch

    IPC: G01N21/00 ,  G01N21/27 ,  G01N21/39 ,  G01N21/3504 ,  G01J3/28 ,  G01J3/42 ,  G01N21/03 ,  G01N21/31 ,  G01N21/3518

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

    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. 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. 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与参考谐波吸收曲线进行比较，以检测测试曲线形状与参考曲线形状之间的差异。 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。

    OPTICAL REFLECTORS FOR SPECTROMETER GAS CELLS
    33.
    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：US20160084710A1

    公开(公告)日：2016-03-24

    申请号：US14494482

    申请日：2014-09-23

    Applicant: SpectraSensors, Inc.

    Inventor： Lutz Keller ,  Alfred Feitisch ,  Peter Scott ,  Mathias Schrempel ,  Nathan St. John

    IPC: G01J3/42 ,  G01J3/02

    CPC classification number: G01N21/031 ,  G01N2021/399

    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 includes attachment materials that are chemically inert to at least one reactive gas compound. The mechanical attachment can hold 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, ceramic, or the like. Related methods, articles of manufacture, systems, and the like 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物的第一接触端，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。 镜子可以通过机械附件固定在适当的位置，该机械附件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。 机械附件可以将反射表面的光轴相对于分光计单元的其他部件和包括光谱仪单元的光谱仪装置固定在一定方向。 镜子可以任意地由诸如不锈钢，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
    34.
    发明申请
    Dynamic Reconstruction Of A Calibration State Of An Absorption Spectrometer 有权
    吸收光谱仪的校准状态的动态重建

    公开(公告)号：US20140253922A1

    公开(公告)日：2014-09-11

    申请号：US14263942

    申请日：2014-04-28

    Applicant: SpectraSensors, Inc.

    Inventor： Xiang Liu ,  John Lewison ,  Wenhai Ji ,  Alfred Feitisch

    IPC: G01N21/27 ,  G01N21/39

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

    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. 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. 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与参考谐波吸收曲线进行比较，以检测测试曲线形状与参考曲线形状之间的差异。 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。

    Technique for detecting ethylene oxide in air
    35.
    发明申请
    Technique for detecting ethylene oxide in air 有权
    检测空气中环氧乙烷的技术

    公开(公告)号：US20040245471A1

    公开(公告)日：2004-12-09

    申请号：US10766327

    申请日：2004-01-29

    Applicant: SpectraSensors, Inc.

    Inventor： Randy Dean May

    IPC: G01N021/35

    CPC classification number: G01N21/39 ,  G01N21/3504

    Abstract: A system and method are disclosed for the detection of ethylene oxide in a sample of gas, such as air. The system includes a light source operating at a wavelength where molecules typically found within air absorb light at a substantially lower level than ethylene oxide molecules. Exemplary wavelengths are in the range of approximately 1.6-2.2 nullm, and in particular at 1.6 nullm, 1.645 nullm, 1.692 nullm, 2.195 nullm, 2.2 nullm, 2.216 nullm, passes through the sample of gas to be detected by a detector. In one embodiment, the light source is a tunable diode laser or a VCSEL and the ethylene oxide level is determined using harmonic spectroscopy.

    Abstract translation: 公开了用于检测诸如空气的气体样品中的环氧乙烷的系统和方法。 该系统包括以通常在空气中发现的分子以比环氧乙烷分子基本上更低的水平吸收光的波长操作的光源。 示例性的波长在1.6-2.2μm的范围内，特别是1.6μm，1.645μm，1.692μm，2.195μm，2.2μm，2.216μm，通过检测器检测的气体样品。 在一个实施例中，光源是可调谐二极管激光器或VCSEL，并且使用谐波光谱确定环氧乙烷水平。

    Light source module
    36.
    发明授权
    Light source module 有权

    公开(公告)号：US11169357B2

    公开(公告)日：2021-11-09

    申请号：US16281841

    申请日：2019-02-21

    Applicant: SpectraSensors, Inc.

    Inventor： Nicholas J. Croglio, Jr. ,  Peter Scott ,  Doug Beyer ,  Kevin Ludlum ,  Keith Helbley ,  David Peter

    IPC: G02B7/02 ,  F21V33/00

    Abstract: A light source module may include a base with a support feature protruding from a surface of the base and securing a light source to direct radiation away from the surface. A lens cells may be attached proximate to the surface, optionally by being secured within a sleeve that is attached at one end to the surface. A multi-conductor part may include electrical conductors and a base temperature sensor that contacts the base. The base temperature sensor may be electrically connected to at least one of the plurality of conductive elements and further connected to an optical ignition safety protection system configured to interrupt current to the light source if the base temperature sensor indicates that a temperature of the light source is outside of a safe range.

    Semiconductor laser mounting with intact diffusion barrier layer
    37.
    发明授权
    Semiconductor laser mounting with intact diffusion barrier layer 有权

    公开(公告)号：US10224693B2

    公开(公告)日：2019-03-05

    申请号：US15652177

    申请日：2017-07-17

    Applicant: SpectraSensors, Inc.

    Inventor： Alfred Feitisch ,  Gabi Neubauer ,  Mathias Schrempel

    IPC: H01S3/04 ,  H01S5/022 ,  H01L23/00 ,  H01S5/042

    Abstract: A first contact surface of a semiconductor laser chip can be formed to a target surface roughness selected to have a maximum peak to valley height that is substantially smaller than a barrier layer thickness. A barrier layer that includes a non-metallic, electrically-conducting compound and that has the barrier layer thickness can be applied to the first contact surface, and the semiconductor laser chip can be soldered to a carrier mounting along the first contact surface using a solder composition by heating the soldering composition to less than a threshold temperature at which dissolution of the barrier layer into the soldering composition occurs. Related systems, methods, articles of manufacture, and the like are also described.

    Spectrometer with variable beam power and shape
    39.
    发明授权
    Spectrometer with variable beam power and shape 有权

    公开(公告)号：US10072980B2

    公开(公告)日：2018-09-11

    申请号：US15376541

    申请日：2016-12-12

    Applicant: SpectraSensors, Inc.

    Inventor： Alfred Feitisch ,  Xiang Liu ,  Chih-Husan Chang ,  Hsu-Hung Huang

    IPC: G01J3/46 ,  G01J3/02 ,  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.

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