Portable and autonomous instrument for analyzing a gaseous composition
by means of flame spectrophotometry
    1.
    发明授权
    Portable and autonomous instrument for analyzing a gaseous composition by means of flame spectrophotometry 失效
    便携式和自主的仪器,用于通过火焰分光光度法分析气态成分

    公开(公告)号:US4974963A

    公开(公告)日:1990-12-04

    申请号:US279598

    申请日:1988-10-31

    Abstract: Instrument comprising a burner (22) provided with a window (221), on the axis of which is disposed a flame spectrophotometric device consisting of a focusing lens (222, 231), a chopper (223) introducing a number of optical filters (224) at the rate of one per characteristic line in the spectrum of the element under analysis, an optoelectronic cell (232) disposed within the focusing zone of said lens, a demodulation assembly for demodulating the electric signal emitted by said cell, and devices for amplifying and displaying the electric signal emitted by said assembly. Special provisions render the instrument portable and autonomous without detracting from its high precision.

    Abstract translation: PCT No.PCT / FR88 / 00105 Sec。 371日期1988年10月31日第 102(e)日期1988年10月31日PCT提交1988年2月25日PCT公布。 出版物WO88 / 06727 日期:1988年9月7日。包括设置有窗口(221)的燃烧器(22)的仪器,其轴线设置有由聚焦透镜(222,231)构成的火焰分光光度仪器,引入 多个光学滤波器(224),在被分析元件的光谱中以每个特征线一个的速率,设置在所述透镜的聚焦区域内的光电池(232),解调组件,用于解调由 所述单元以及用于放大和显示由所述组件发射的电信号的装置。 特殊规定使仪器便携和自主,而不会降低仪器的高精度。

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