Terahertz time-domain-waveform multiparameter-combined quantitative analysis method for mixed oil

混油的太赫兹时域波形多参数组合定量分析方法

Abstract

The invention relates to the technical field of terahertz quantitative spectrochemical analysis of liquid mixtures, and concretely relates to a terahertz time-domain-waveform multiparameter-combined quantitative analysis method for mixed oil, and the method is used to quantitative analysis on mixtures of oil products with similar compositions. The method avoids absorption coefficient spectrum for quantitative analysis, thereby eliminating system error caused by utilization of theoretical Beer-Lambert Law; introduction of multiparameter substantially improves the reliability of a quantitative result; and determination of a multiparameter weight enables the quantitative analysis value to be relatively close to an actual value. The method enables the terahertz technology to be capable of performing accurate quantitative analysis on the mixed oil composed of oil products with similar compositions. The method avoids usage of the absorption coefficient spectrum with relatively large system error for quantitative analysis, thereby reducing the quantitative error from original 24% or less to 6.07% or less.
本发明涉及液体混合物的太赫兹光谱定量分析技术领域,具体涉及一种混油的太赫兹时域波形多参数组合定量分析方法,其用于组成成分接近油品混合物的定量分析。该方法避免采用吸收系数谱进行定量分析,从而去除了利用理论比尔兰伯特定律所带来的系统误差;多参数的引进大大提高了定量结果的可靠性;多参数权值的确定也使定量分析值与实际值更加接近。该方法使得太赫兹技术可以对成分相近油品组成的混油进行准确的定量分析。避免使用系统误差较大的吸收系数谱进行定量分析,使定量误差由原来的24%以内,减小到6.07%以内。

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NO-Patent Citations (3)

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