Background Compensation By Multiple-Peak Measurements For Absorption Spectroscopy-Based Gas Sensing
    66.
    发明申请
    Background Compensation By Multiple-Peak Measurements For Absorption Spectroscopy-Based Gas Sensing 有权
    基于吸收光谱法的多峰测量的背景补偿

    公开(公告)号:US20080179530A1

    公开(公告)日:2008-07-31

    申请号:US11929525

    申请日:2007-10-30

    IPC分类号: G01N21/37

    摘要: Concentrations of a target analyte in a gas mixture containing one or more background analytes having potentially interfering spectral absorption features can be calculated by compensating for background analyte absorption at a target wavelength used to quantify the target analyte. Absorption can be measured at a reference wavelength chosen to quantify the concentration of the background analyte. Using a background gas adjustment factor or function, the absorption measured at the reference wavelength can be used to calculate absorption due to the background analyte at the target wavelength and thereby compensate for this background absorption to more accurately calculate the target analyte concentration in real or near real time. Additional background analytes can optionally be compensated for by using one or more additional reference wavelengths.

    摘要翻译: 含有具有潜在干扰光谱吸收特征的一种或多种背景分析物的气体混合物中的目标分析物的浓度可以通过补偿用于量化目标分析物的目标波长的背景分析物吸收来计算。 可以在选择的参考波长处测量吸光度,以量化背景分析物的浓度。 使用背景气体调节因子或功能,可以使用在参考波长处测量的吸收来计算由于目标波长的背景分析物引起的吸收,从而补偿该背景吸收,以更精确地计算实际或近似的目标分析物浓度 即时的。 可以通过使用一个或多个另外的参考波长来可选地补偿附加的背景分析物。

    LONG-TERM STABLE OPTICAL SENSOR ARRANGEMENT, ESPECIALLY A HYDROGEN SENSOR, AND COMBINED GAS SENSOR ARRANGEMENT
    67.
    发明申请
    LONG-TERM STABLE OPTICAL SENSOR ARRANGEMENT, ESPECIALLY A HYDROGEN SENSOR, AND COMBINED GAS SENSOR ARRANGEMENT 有权
    长期稳定的光学传感器布置,特别是氢传感器和组合式气体传感器布置

    公开(公告)号:US20080116378A1

    公开(公告)日:2008-05-22

    申请号:US11941604

    申请日:2007-11-16

    IPC分类号: G01N21/37

    摘要: The present invention relates to optical sensor arrangements, especially sensors of the type that can be used in motor vehicles and which can detect hydrogen in a gaseous measured medium. According to the invention, an optical sensor arrangement has the at least one radiation source (108) for emitting radiation, the at least one measuring transducer which modifies its optical characteristics in response to the presence and/or concentration of at least one analyte in a measured medium (104) and is arranged so that it interacts with at least part of the emitted radiation (110), a first detector unit (112) for capturing a change in radiant intensity due to the changed optical characteristics of the measuring transducer and for outputting a first measuring signal and a light conducting body (106) which is transparent to the emitted radiation, wherein the measuring transducer, which is sensitive to the analyte, is arranged on at least one surface of the light conducting body (106) so that the emitted radiation impinges on a surface of the measuring transducer which faces away from the measured medium (104).

    摘要翻译: 本发明涉及光学传感器装置,特别是可用于机动车辆并且可以检测气体测量介质中的氢的类型的传感器。 根据本发明,光学传感器装置具有用于发射辐射的至少一个辐射源(108),该至少一个辐射源(108)响应于至少一个分析物的存在和/或浓度来修改其光学特性 测量介质(104)并且被布置成使得其与所发射的辐射(110)的至少一部分相互作用;第一检测器单元(112),用于捕获由于测量换能器的改变的光学特性引起的辐射强度变化,并且 输出对所发射的辐射透明的第一测量信号和导光体(106),其中对分析物敏感的测量传感器布置在导光体(106)的至少一个表面上,使得 所发射的辐射照射在远离所测量的介质(104)的测量传感器的表面上。

    Non-Dispersive Infrared Gas Analyzer
    68.
    发明申请
    Non-Dispersive Infrared Gas Analyzer 审中-公开
    非分散红外气体分析仪

    公开(公告)号:US20080011952A1

    公开(公告)日:2008-01-17

    申请号:US11630919

    申请日:2005-06-09

    IPC分类号: G01N21/37

    摘要: The invention relates to a non-dispersive infrared gas analyzer (1) for identifying a test gas containing a number of gas constituents, comprising a radiation source (2), a modulating device (3), a measuring cell (4), which has a measuring chamber (4a) and a comparing chamber (4b), and comprising an optopneumatic detector unit (5) that has a first detector (5a), which, for measuring gas constituent A, is filled with gas constituent A, and has a second detector (5b), which is situated behind the first detector (5a) and which, for measuring gas constituent B, is filled with the isotope B* thereof.

    摘要翻译: 本发明涉及一种用于识别含有多种气体成分的测试气体的非分散红外线气体分析仪(1),其包括辐射源(2),调制装置(3),测量单元(4),其具有 测量室(4a)和比较室(4b),并且包括具有第一检测器(5a)的操作气动检测器单元(5),其用于测量气体成分A,填充有气体成分A, 并且具有位于第一检测器(5a)后面的第二检测器(5b),并且用于测量气体成分B的第二检测器填充有其同位素B *。

    Micromachined integrated opto-flow gas/liquid sensor
    70.
    发明授权
    Micromachined integrated opto-flow gas/liquid sensor 失效
    微加工集成光电气体/液体传感器

    公开(公告)号:US5869749A

    公开(公告)日:1999-02-09

    申请号:US841748

    申请日:1997-04-30

    摘要: A micromachined integrated opto-fluidic or opto-acoustic sensor having a rapidly intensity-varying or pulsing light source, an interference filter, a gas cavity, which may or may not be an optical and/or acoustic resonator tuned to a particular wavelength of light, or sound frequency, into which the detected gas can diffuse into via a filter, and a fluidic or pressure sensor to detect the heating and cooling, and the resulting expansion and contraction of the gas due to the absorption of light at the particular wavelength by the specific gas being detected. The presence of other gases is inferred from the detected gas.

    摘要翻译: 具有快速强度变化或脉冲光源的微加工的集成光流式或光声传感器,干涉滤光器,气腔,其可以或可以不是调谐到特定波长的光的光学和/或声学谐振器 或声音频率,检测到的气体可以通过过滤器扩散到其中;以及流体或压力传感器以检测加热和冷却,以及由于通过在特定波长处吸收光而导致的气体的膨胀和收缩 被检测的特定气体。 从检测到的气体推断其他气体的存在。