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    GAS DETECTION APPARATUS AND METHOD
    91.
    发明申请
    GAS DETECTION APPARATUS AND METHOD 审中-公开

    公开(公告)号：US20180217056A1

    公开(公告)日：2018-08-02

    申请号：US15747516

    申请日：2016-07-27

    Applicant: Gas Measurement Instruments Limited

    Inventor： Crawford MASSIE ,  Fraser MATHIESON ,  Andrew GLENDINNING

    IPC: G01N21/3518 ,  G01N21/31

    CPC classification number: G01N21/3518 ,  G01J1/1626 ,  G01J2001/161 ,  G01N21/314 ,  G01N21/3504 ,  G01N33/0059 ,  G01N2021/3166 ,  G01N2201/1215

    Abstract: A detector has a sensor responsive to a first wavelength, a sensor responsive to a second wavelength, and a sensor for collecting reference readings. A gas sample is analysed to obtain readings corresponding to the first wavelength, the second wavelength and a reference. A first absorption figure is calculated using the first reading and the reference reading, and a second absorption figure using the second reading and the reference reading. A lineariser function is applied to the first and second absorption figures to calculate first and second concentration figures. The sensor for each wavelength is calibrated for detecting the first gas such that the data collected at each wavelength gives the same reading when only the first gas is present. The ratio of the first concentration figure to the second concentration figure is used to identify whether only the first gas is present.

    METHOD FOR THE LASER SPECTROSCOPY OF GASES
    93.
    发明申请
    METHOD FOR THE LASER SPECTROSCOPY OF GASES 有权
    气体激光光谱法

    公开(公告)号：US20140340684A1

    公开(公告)日：2014-11-20

    申请号：US14279369

    申请日：2014-05-16

    Applicant: Sick AG

    Inventor： Julian EDLER ,  Thomas BEYER ,  Rolf DISCH

    IPC: G01N21/39

    CPC classification number: G01N21/39 ,  G01J3/433 ,  G01J3/4338 ,  G01N21/274 ,  G01N21/3504 ,  G01N21/3554 ,  G01N2021/399 ,  G01N2201/0691 ,  G01N2201/1211 ,  G01N2201/1215 ,  G01N2201/1218

    Abstract: A method of determining a concentration of a gas in a sample and/or the composition of a gas using a spectrometer comprises the transmitting of radiation whose wavelength substantially continuously runs through a wavelength range, wherein the continuous running through of the wavelength range is overlaid by a wavelength modulation; the measuring of an absorption signal from the absorption of the radiation by the gas as a function of the wavelength of the radiation; the converting of the absorption signal into a first and a second derivative signal; the deriving of a first measured gas concentration value from the first derivative signal and of a second measured gas concentration value from the second derivative signal; and the determining of the concentration and/or the composition of the gas from at least the first measured gas concentration value, wherein the wavelength modulation is adapted in response to a change of a state variable of the gas such that a ratio between the first measured gas concentration value and the second measured gas concentration value is kept substantially constant.

    Abstract translation: 使用光谱仪确定样品中气体浓度和/或气体组成的方法包括传输其波长基本上连续穿过波长范围的辐射，其中波长范围的连续穿过被覆盖在 波长调制; 通过气体吸收辐射的吸收信号作为辐射波长的函数的测量; 将吸收信号转换成第一和第二导数信号; 从所述一阶导数信号导出第一测量气体浓度值和从所述二阶导数信号得到第二测量气体浓度值; 以及从至少第一测量气体浓度值确定气体的浓度和/或组成，其中响应于气体的状态变量的变化而调整波长调制，使得第一测量的气体浓度值 气体浓度值和第二测量气体浓度值保持基本上恒定。

    Concentration measuring device, concentration measuring arrangement and concentration measuring method
    95.
    发明授权
    Concentration measuring device, concentration measuring arrangement and concentration measuring method 有权
    浓度测量装置，浓度测量装置和浓度测量方法

    公开(公告)号：US08576398B2

    公开(公告)日：2013-11-05

    申请号：US13439407

    申请日：2012-04-04

    Applicant: Ingo Schiffler ,  Thomas Beyer

    Inventor： Ingo Schiffler ,  Thomas Beyer

    IPC: G01N21/59

    CPC classification number: G01N21/0303 ,  G01N21/3504 ,  G01N2021/0307 ,  G01N2021/317 ,  G01N2201/1215

    Abstract: A concentration measuring device for determining a concentration of gas or particles in a measurement volume includes at least one housing having an opening for communication with the measurement volume, a light source for transmitting measurement light through the housing into the measurement volume, a light receiver for receiving the measurement light after its passage through the measurement volume and an evaluation unit which is designed for determining the concentration of gas or particles from the measurement light received at the light receiver. In accordance with the invention at least one body of solid material is arranged in the at least one housing such that the measurement light path largely passes through the at least one solid body within the housing, with the portion of the measurement light path within the at least one housing not passing through the at least one solid body having a specified total length.

    Abstract translation: 用于确定测量体积中的气体或颗粒的浓度的浓度测量装置包括至少一个具有用于与测量体积通信的开口的壳体，用于将测量光通过壳体传送到测量体积中的光源，用于 在测量光通过测量体积之后接收测量光;以及评估单元，其被设计用于从在光接收器处接收的测量光中确定气体或颗粒的浓度。 根据本发明，至少一个固体材料体被布置在至少一个壳体中，使得测量光路径大部分通过壳体内的至少一个实体，其中测量光路的一部分在内 至少一个壳体不穿过具有指定总长度的至少一个固体。

    Reactive gas detection in complex backgrounds
    96.
    发明授权
    Reactive gas detection in complex backgrounds 有权
    复杂背景下的反应性气体检测

    公开(公告)号：US08500849B2

    公开(公告)日：2013-08-06

    申请号：US13428626

    申请日：2012-03-23

    Applicant: Xin Zhou ,  Xiang Liu ,  Alfred Feitisch ,  Gregory M. Sanger

    Inventor： Xin Zhou ,  Xiang Liu ,  Alfred Feitisch ,  Gregory M. Sanger

    IPC: B01D59/26

    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/或制品。

    CONCENTRATION MEASURING DEVICE, CONCENTRATION MEASURING ARRANGEMENT AND CONCENTRATION MEASURING METHOD
    97.
    发明申请
    CONCENTRATION MEASURING DEVICE, CONCENTRATION MEASURING ARRANGEMENT AND CONCENTRATION MEASURING METHOD 有权
    浓度测量装置，浓度测量装置和浓度测量方法

    公开(公告)号：US20120257202A1

    公开(公告)日：2012-10-11

    申请号：US13439407

    申请日：2012-04-04

    Applicant: Ingo SCHIFFLER ,  Thomas BEYER

    Inventor： Ingo SCHIFFLER ,  Thomas BEYER

    IPC: G01N21/59

    CPC classification number: G01N21/0303 ,  G01N21/3504 ,  G01N2021/0307 ,  G01N2021/317 ,  G01N2201/1215

    Abstract: A concentration measuring device for determining a concentration of gas or particles in a measurement volume includes at least one housing having an opening for communication with the measurement volume, a light source for transmitting measurement light through the housing into the measurement volume, a light receiver for receiving the measurement light after its passage through the measurement volume and an evaluation unit which is designed for determining the concentration of gas or particles from the measurement light received at the light receiver. In accordance with the invention at least one body of solid material is arranged in the at least one housing such that the measurement light path largely passes through the at least one solid body within the housing, with the portion of the measurement light path within the at least one housing not passing through the at least one solid body having a specified total length.

    Abstract translation: 用于确定测量体积中的气体或颗粒的浓度的浓度测量装置包括至少一个具有用于与测量体积通信的开口的壳体，用于将测量光通过壳体传送到测量体积中的光源，用于 在测量光通过测量体积之后接收测量光;以及评估单元，其被设计用于从在光接收器处接收的测量光中确定气体或颗粒的浓度。 根据本发明，至少一个固体材料体被布置在至少一个壳体中，使得测量光路径大部分通过壳体内的至少一个实体，其中测量光路的一部分在内 至少一个壳体不穿过具有指定总长度的至少一个固体。

    REACTIVE GAS DETECTION IN COMPLEX BACKGROUNDS
    98.
    发明申请
    REACTIVE GAS DETECTION IN COMPLEX BACKGROUNDS 有权
    复杂背景下的反应性气体检测

    公开(公告)号：US20120185179A1

    公开(公告)日：2012-07-19

    申请号：US13428626

    申请日：2012-03-23

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

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

    IPC: G06F19/00 ,  G01N21/25

    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/或制品。

    Reactive gas detection in complex backgrounds
    100.
    发明授权
    Reactive gas detection in complex backgrounds 有权

    公开(公告)号：US07819946B2

    公开(公告)日：2010-10-26

    申请号：US12763124

    申请日：2010-04-19

    Applicant: Xin Zhou ,  Xiang Liu ,  Alfred Feitisch ,  Gregory M. Sanger

    Inventor： Xin Zhou ,  Xiang Liu ,  Alfred Feitisch ,  Gregory M. Sanger

    IPC: B01D59/26

    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.

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