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    • 2. 发明授权
    • In situ chlorophyl absorption meter
    • 原位氯仿吸收仪
    • US5424840A
    • 1995-06-13
    • US285486
    • 1994-08-03
    • Casey MooreJ. Ronald V. Zaneveld
    • Casey MooreJ. Ronald V. Zaneveld
    • G01N21/31G01N21/85G01N1/00G01N15/06
    • G01N21/3151
    • An absorption meter determines concentration of chlorophyll a and pheophytin in liquids. Particularly, an immersible absorption meter has a light source, a reflective flow tube, a signal detector, and means for determining the difference between the absorption coefficients at a first wavelength and a second wavelength. The light source may further include a plurality of filters and a selector that selects the filters. The concentration of substances in liquids is determined by measuring the absorption of light at a first wavelength and at a second wavelength, determining the difference between the absorption coefficients for the first and second wavelengths, and converting this data into concentrations.
    • 吸收仪测定液体中叶绿素a和鞘磷脂的浓度。 特别地,浸入式吸收计具有光源,反射流管,信号检测器和用于确定第一波长和第二波长的吸收系数之间的差的装置。 光源还可以包括多个滤光器和选择器,其选择滤光器。 通过测量第一波长和第二波长处的光的吸收来确定液体中物质的浓度,确定第一和第二波长的吸收系数之间的差异,并将该数据转化为浓度。