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1.发明公开公开(公告)号：US20230400476A1
公开(公告)日：2023-12-14
申请号：US18330493
申请日：2023-06-07
发明人： Jens REKOW , Malte BAESLER , Tobias REIER , Luis Brunswick FRANCO
CPC分类号： G01N35/025 , G01N35/0099 , G01N35/1016 , G01N35/1011
摘要： An analyzer (100) and a process for analyzing a gas (G) for a predetermined substance. A sensor measures an indicator of the amount or concentration of the substance in a gas sample located in a measurement chamber (3). A movement of an actuating unit (4, 17, 19) in a first direction (R.1) increases the volume of a suction chamber unit (5). A movement of the actuating unit (4, 17, 19) in a second direction (R.2) decreases the volume of the suction chamber unit (5). A motor (7) rotates a cam disk (1) about an axis (MA). The actuating unit (4, 17, 19) is mechanically coupled to the cam disk (1). Each rotational position of the cam disk (1) relative to the axis (MA) determines a position of the actuation unit (4, 17, 19) and thus a volume of the suction chamber unit (5).
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2.发明公开公开(公告)号：US20230324263A1
公开(公告)日：2023-10-12
申请号：US18194683
申请日：2023-04-03
发明人： Jens REKOW , Marie-Isabell MATTERN-FRUEHWALD , Tobias REIER , Luis Brunswick FRANCO , Nick BENDORF
CPC分类号： G01N1/24 , G01N33/98 , G01N2001/2244
摘要： An analyzer and a process analyze a breath sample exhaled by a subject for a predetermined substance, particularly alcohol. An input fluid connection connects an input unit (1) to a measuring chamber (3). A suction fluid connection connects the measuring chamber to a suction chamber unit (5, 6), that is selectively transferrable to a with minimum volume state or a maximum volume state. A sensor (12) measures an amount or a concentration of the substance in the measuring chamber. A drive unit (4, 11) moves a valve (2, 13) for the input fluid connection selectively into a closing or into a releasing end position. The drive unit can also move the suction chamber unit between the two states. The movement of the valve (2, 13) from one end position to the other end position is coupled with a transfer of the suction chamber unit (5, 6) between the two states.
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