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    • 3. 发明授权
    • Reactive gas detection in complex backgrounds
    • 复杂背景下的反应性气体检测
    • US08152900B2
    • 2012-04-10
    • US12911666
    • 2010-10-25
    • Xin ZhouXiang LiuAlfred FeitischGregory M. Sanger
    • Xin ZhouXiang LiuAlfred FeitischGregory M. Sanger
    • B01D59/26
    • G01N21/3504G01N2021/3545G01N2021/399G01N2201/1215
    • 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.
    • 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。
    • 7. 发明申请
    • Reactive Gas Detection In Complex Backgrounds
    • 复杂背景下的活性气体检测
    • US20110093215A1
    • 2011-04-21
    • US12911666
    • 2010-10-25
    • Xin ZhouXiang LiuAlfred FeitischGregory M. Sanger
    • Xin ZhouXiang LiuAlfred FeitischGregory M. Sanger
    • G06F19/00G01N21/25
    • G01N21/3504G01N2021/3545G01N2021/399G01N2201/1215
    • 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.
    • 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。
    • 8. 发明授权
    • Background compensation by multiple-peak measurements for absorption spectroscopy-based gas sensing
    • 基于吸收光谱法的气体感测的多峰测量的背景补偿
    • US07586094B2
    • 2009-09-08
    • US11929525
    • 2007-10-30
    • Xiang LiuXin ZhouAlfred FeitischGregory M. Sanger
    • Xiang LiuXin ZhouAlfred FeitischGregory M. Sanger
    • G01J5/02
    • G01N21/3504G01N21/274G01N21/314G01N21/39G01N2201/1215
    • 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.
    • 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。