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    SPECTROMETER WITH ACTIVE BEAM STEERING
    4.
    发明公开
    SPECTROMETER WITH ACTIVE BEAM STEERING 审中-公开
    带有主动式光束控制的光谱仪

    公开(公告)号：EP3183546A1

    公开(公告)日：2017-06-28

    申请号：EP15739741.5

    申请日：2015-07-09

    申请人： SpectraSensors, Inc.

    发明人： FEITISCH, Alfred ,  LIU, Xiang ,  HELBLEY, Keith, Benjamin ,  BEYER, Douglas

    IPC分类号： G01J3/02 ,  G01J3/42

    CPC分类号： G01J3/0205 ,  G01J3/0237 ,  G01J3/027 ,  G01J3/0278 ,  G01J3/0291 ,  G01J3/42 ,  G01J2003/421 ,  G01N21/31 ,  G01N2201/06113 ,  G01N2201/062

    摘要： A spectrometer includes a light source that emits a beam into a sample volume comprising an absorbing medium. Thereafter, at least one detector detects at least a portion of the beam emitted by the light source. It is later determined, based on the detected at least a portion of the beam and by a controller, that a position and/or an angle of the beam should be changed. The beam emitted by the light source is then actively steered by an actuation element under control of the controller. In addition, a concentration of the absorbing media can be quantified or otherwise calculated (using the controller or optionally a different processor that can be local or remote). The actuation element(s) can be coupled to one or more of the light source, a detector or detectors, and a reflector or reflectors intermediate the light source and the detector(s).

    摘要翻译： 光谱仪包括将光束发射到包含吸收介质的样本体积中的光源。 之后，至少一个检测器检测由光源发射的光束的至少一部分。 随后基于检测到的至少一部分光束和控制器确定光束的位置和/或角度应该改变。 由光源发射的光束然后在控制器的控制下由致动元件主动地转向。 另外，吸收介质的浓度可以量化或以其他方式计算（使用控制器或可选地可以是本地或远程的不同处理器）。 （一个或多个）致动元件可以联接到光源，检测器或检测器中的一个或多个，以及在光源和检测器中间的一个或多个反射器。

    METHOD OF MAKING A SCRUBBING MEDIUM FOR REACTIVE GASSES
    5.
    发明授权
    METHOD OF MAKING A SCRUBBING MEDIUM FOR REACTIVE GASSES 有权
    介质的一种洗涤活性气体过程

    公开(公告)号：EP2203242B1

    公开(公告)日：2013-01-09

    申请号：EP08799027.1

    申请日：2008-08-29

    申请人： SpectraSensors, Inc.

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

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

    CPC分类号： B01D53/685 ,  B01D53/42 ,  B01D53/52 ,  B01D53/58 ,  B01D2251/512 ,  B01D2251/602 ,  B01D2251/606 ,  B01D2259/40

    摘要： A method is disclosed which comprises maintaining a scrubber medium at a temperature in a range of -20°C to 85°C, the scrubber medium comprising nanoparticles of a reactive metal oxide material having first aerodynamic diameters of less than 250 nm that are adhered to carrier particles having second aerodynamic diameters in a range of 10 to 250 microns and that are inert relative to one or more background compounds, wherein a mass ratio of the reactive metal oxide to the carrier particles is in a range of 20% to 30%, and wherein the nanoparticles of the reactive metal oxide are adhered to the carrier particles by one or more of van der Waals and electrostatic forces. In a further step a gas mixture is contacted with the scrubber medium while the scrubber medium is maintained at the temperature, the gas mixture comprising a reactive compound and the one or more background compounds, the reactive compound comprising a gas-phase acid, the contacting causing the reactive compound to react with the reactive metal oxide material to convert the reactive compound and at least one metal oxide site on the nanoparticles to one or more metal-anion surface compounds. An apparatus, a composition and a refreshing method are also disclosed.

    REACTIVE GAS DETECTION IN COMPLEX BACKGROUNDS
    7.
    发明公开
    REACTIVE GAS DETECTION IN COMPLEX BACKGROUNDS 有权
    其反应气体在复杂的混合气体检测

    公开(公告)号：EP2140246A1

    公开(公告)日：2010-01-06

    申请号：EP08745688.5

    申请日：2008-04-11

    申请人： SpectraSensors, Inc.

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

    IPC分类号： G01N21/35

    CPC分类号： G01N21/3504 ,  G01N2021/3545 ,  G01N2021/399 ,  G01N2201/1215

    摘要： 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..