DISPOSITIF DE FILTRAGE OPTIQUE POUR LA DÉTECTION DE GAZ
    3.
    发明公开
    DISPOSITIF DE FILTRAGE OPTIQUE POUR LA DÉTECTION DE GAZ 审中-公开
    DISPOSITIF DE FILTRAGE OPTIQUE POUR LADÉTECTIONDE GAZ

    公开(公告)号:EP3230701A1

    公开(公告)日:2017-10-18

    申请号:EP15818013.3

    申请日:2015-12-11

    摘要: The invention relates to an optical filtering device (10), in particular for detecting gas remotely, comprising a member (22, 24, 26) including a tubular passage housing a plurality of reflecting structures (34a, 34b, 34c, 34d) that are able to reflect infrared wavelengths, said structures (34a, 34b, 34c, 34d) being elongate along the axis of the tubular passage and placed about this axis. According to the invention, the reflective structures (34a, 34b, 34c, 34d) comprise means for filtering by absorption different wavelength bands located in the infrared spectral band.

    摘要翻译: 本发明涉及一种特别用于远程检测气体的光学过滤装置(10),其包括具有管状通道的构件(22,24,26),所述管状通道容纳多个反射结构(34a,34b,34c,34d) 能够反射红外波长,所述结构(34a,34b,34c,34d)沿着管状通道的轴线伸长并围绕该轴线放置。 根据本发明,反射结构(34a,34b,34c,34d)包括用于通过吸收位于红外光谱带中的不同波长带进行滤波的装置。

    SYSTEMS AND METHODS FOR PRESSURE DIFFERENTIAL MOLECULAR SPECTROSCOPY OF COMPRESSIBLE FLUIDS
    4.
    发明公开
    SYSTEMS AND METHODS FOR PRESSURE DIFFERENTIAL MOLECULAR SPECTROSCOPY OF COMPRESSIBLE FLUIDS 审中-公开
    SYSTEME UND VERFAHREN ZUR MOLEKULAREN DRUCKDIFFERENZ-SPEKTROSKOPIEFÜRKOMPRIMIERBARE FLUIDE

    公开(公告)号:EP3055670A1

    公开(公告)日:2016-08-17

    申请号:EP14792936.8

    申请日:2014-10-10

    发明人: SAPTARI, Vidi A.

    摘要: Described herein is a spectroscopic system and method for measuring and monitoring the chemical composition and/or impurity content of a sample or sample stream using absorption light spectroscopy. Specifically, in certain embodiments, this invention relates to the use of sample pressure variation to alter the magnitude of the absorption spectrum (e.g., wavelength-dependent signal) received for the sample, thereby obviating the need for a reference or ‘zero’ sample. Rather than use a reference or ‘zero’ sample, embodiments described herein obtain a spectrum/signal from a sample-containing cell at both a first pressure and a second (different) pressure.

    摘要翻译: 本文描述的是使用吸收光谱测量和监测样品或样品流的化学成分和/或杂质含量的光谱系统和方法。 具体地说,在某些实施方案中,本发明涉及使用样品压力变化来改变为样品接收的吸收光谱的幅度(例如,依赖于波长的信号),从而避免了对参考或“零”样品的需要。 不是使用参考或“零”样本,本文所述的实施例在第一压力和第二(不同)压力下都从含样品的单元获得光谱/信号。

    A method for remote spectral analysis of gas plumes
    7.
    发明公开
    A method for remote spectral analysis of gas plumes 审中-公开
    Verfahren zur entfernten Spektralanalyse von Gasschwaden

    公开(公告)号:EP2108940A2

    公开(公告)日:2009-10-14

    申请号:EP09156173.8

    申请日:2009-03-25

    IPC分类号: G01N21/35

    CPC分类号: G01N21/3518

    摘要: A method for reducing the effects of background radiation introduced into gaseous plume spectral data obtained by an aerial imaging sensor, includes capturing spectral data of a gaseous plume with its obscured background along a first line of observation and capturing a second image of the previously obscured background along a different line of observation. The parallax shift of the plume enables the visual access needed to capture the radiometric data emanating exclusively from the background. The images are then corresponded on a pixel-by-pixel basis to produce a mapping. An image-processing algorithm is applied to the mapped images to reducing the effects of background radiation and derive information about the content of the plume.

    摘要翻译: 一种用于降低引入到由空中成像传感器获得的气体羽流光谱数据中的背景辐射的影响的方法包括:沿着第一观察线捕获具有模糊背景的气态羽流的光谱数据,并捕获先前模糊的背景的第二图像 沿着不同的观察线。 羽流的视差移位使得能够捕获仅从背景发出的辐射度数据所需的视觉访问。 然后在逐像素的基础上对图像进行映射。 将图像处理算法应用于映射图像以减少背景辐射的影响并得出关于羽流内容的信息。

    PROCESSING SYSTEM FOR REMOTE CHEMICAL IDENTIFICATION
    8.
    发明公开
    PROCESSING SYSTEM FOR REMOTE CHEMICAL IDENTIFICATION 审中-公开
    VERARBEITUNGSSYSTEM ZUR CHEMISCHEN FERNIDENTIFIKATION

    公开(公告)号:EP1511981A4

    公开(公告)日:2005-06-08

    申请号:EP03751766

    申请日:2003-05-22

    摘要: A fourth embodiment of the present invention is a method of generating a temperature compensated absorbance spectrum. The method includes the steps of: a. providing a sample spectrum and an estimated temperature of a backdrop object (176); b. from a set of known temperature spectra related to a known background temperature, selecting at least two known temperature spectra representing a background temperature above and below the estimated temperature (178); c. comparing the sample spectrum to the known temperature spectra in order to determine a sample background spectrum (179); and d. calculating an absorbance spectrum from the sample spectrum and the background spectrum (181).

    摘要翻译: 本发明的第四实施例是产生温度补偿吸收光谱的方法。 该方法包括以下步骤:a。 提供背景物体的样本光谱和估计温度(176); 湾 从与已知背景温度相关的一组已知温度谱中选择代表估计温度之上和之下的背景温度的至少两个已知温度谱(178); C。 将样品光谱与已知温度光谱进行比较以确定样品背景光谱(179); 和d。 根据样品光谱和背景光谱计算吸光度光谱(181)。