Spectrometer for Gas Analysis
    1.
    发明申请
    Spectrometer for Gas Analysis 有权
    气体分析光谱仪

    公开(公告)号:US20150092194A1

    公开(公告)日:2015-04-02

    申请号:US14488608

    申请日:2014-09-17

    Applicant: SICK AG

    Abstract: A spectrometer (10) for gas analysis is provided, the spectrometer comprising a measurement cell (28) having a gas to be investigated, a light source (12) for the transmission of light (14) into the measurement cell (28) on a light path (16), a filter arrangement (22) having a Fabry-Perot filter (24a-c) in the light path (16), in order to set frequency properties of the light (14) by means of a transmission spectrum of the filter arrangement (22), as well as a detector (36, 38) which measures the absorption of the light (14) by the gas (30) in the measurement cell (28). In this connection the filter arrangement (22) has a plurality of Fabry-Perot filters (24a-c) arranged behind one another in the light path (14) and a control unit (44) for the filter arrangement (22) is provided in order to change the transmission spectrum by setting at least one of the Fabry-Perot filters (24a-c).

    Abstract translation: 提供了用于气体分析的光谱仪(10),该光谱仪包括具有待研究气体的测量单元(28),用于将光(14)传输到测量单元(28)中的光源(12) 光路(16),在光路(16)中具有法布里 - 珀罗滤光器(24a-c)的滤光器装置(22),以通过透光光谱(14)的透射光谱来设定光(14)的频率特性 过滤器装置(22)以及测量单元(28)中的气体(30)吸收光(14)的检测器(36,38)。 在这种连接中,过滤器装置(22)具有在光路(14)中彼此相邻布置的多个法布里 - 珀罗过滤器(24a-c),并且用于过滤器装置(22)的控制单元(44)设置在 通过设置至少一个法布里 - 珀罗滤波器(24a-c)来改变传输频谱。

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