公开(公告)号：US06512230B1

公开(公告)日：2003-01-28

申请号：US09571540

申请日：2000-05-16

申请人： Tuomo Antero von Lerber

发明人： Tuomo Antero von Lerber

IPC分类号： G01N2135

CPC分类号： G01N21/3504 ,  G01N2201/0221 ,  G01N2201/06186

摘要： The invention relates to an arrangement in an apparatus for analyzing, on the basis of radiation absorption properties, one or more gas component included in a gaseous medium from an origin, like exhaled air from a person. The apparatus comprises a radiation source (10); a measuring chamber (8) provided with radiation transmissive windows (7a, 7b) for receiving a gas mixture (6) from at least the gaseous medium (G1); a first detector (1), which receives the radiation passed through the gas mixture; and between the radiation source and the detector a first optical interference filter (3), which has a first radiation transmission wavelength band and which is tiltable (P) relative to the passing radiation (R) beam. The arrangement further comprises a second detector (2) directed towards a radiation input surface (5b) of the first interference filter, said second detector receiving momentarily a portion of said radiation (R) as reflected from said radiation input surface (5b) of the first interference filter (3) during the tilt (P) movement.

摘要翻译： 本发明涉及一种用于根据辐射吸收性质分析包含在来自人的气体介质中的一种或多种气体组分的设备中的装置，如来自人的呼出空气。 该装置包括辐射源（10）; 设置有用于从至少所述气态介质（G1）接收气体混合物（6）的辐射透射窗（7a，7b）的测量室（8）; 第一检测器（1），其接收通过所述气体混合物的辐射; 并且在所述辐射源和所述检测器之间具有第一光学干涉滤光器（3），所述第一光学干涉滤光器（3）具有第一辐射透射波长带并且相对于所述通过辐射（R）光束可倾斜（P）。 所述布置还包括指向所述第一干涉滤光器的辐射输入表面（5b）的第二检测器（2），所述第二检测器暂时接收从所述辐射输入表面（5b）反射的所述辐射（R）的一部分， 第一干涉滤波器（3）在倾斜（P）移动期间。