Method for marking and identifying liquids
    24.
    发明授权
    Method for marking and identifying liquids 失效
    液体识别和识别方法

    公开(公告)号:US5958780A

    公开(公告)日:1999-09-28

    申请号:US885164

    申请日:1997-06-30

    Abstract: Methods for marking a liquid and methods and systems for identifying marked liquids. A liquid can be marked for identification purposes with at least a first marker and a second marker. Each of the markers is miscible with the liquid. The markers are mixed in the liquid so that the ratio of the concentration of the first marker to the concentration of the second marker is substantially equal to a predetermined value. Thus, when a system according to the invention measures the concentrations of the first and second markers, the system can compare the ratio of the measured concentration of the first marker to the measured concentration of the second marker with a look up table of the predetermined values to provide information concerning the identity of the liquid. In a preferred embodiment, the concentration of the markers is measured using an absorption spectrometer. When using an absorption spectrometer to measure the concentration of the markers, each of the markers has an absorbance spectrum with at least one wavelength range where the marker's absorbance is differentiable from the absorbance of the background liquid and any other marker in the liquid.

    Abstract translation: 标记液体的方法和用于识别标记液体的方法和系统。 液体可以用至少第一标记和第二标记进行标识。 每个标记物都与液体混溶。 标记物在液体中混合,使得第一标记物的浓度与第二标记物的浓度之比基本上等于预定值。 因此,当根据本发明的系统测量第一和第二标记的浓度时,系统可以用预定值的查找表来比较第一标记的测量浓度与第二标记的测量浓度的比率 提供关于液体身份的信息。 在优选的实施方案中,使用吸收光谱仪测量标记物的浓度。 当使用吸收光谱仪来测量标记物的浓度时,每个标记物具有至少一个波长范围的吸收光谱,其中标记物的吸光度与背景液体和液体中任何其它标记物的吸光度不同。

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