公开(公告)号：US11668669B2

公开(公告)日：2023-06-06

申请号：US16087368

申请日：2017-03-21

申请人： Dräger Safety AG & Co. KGaA

发明人： Rigobert Chrzan ,  Rolf Eckhardt ,  Andreas Nauber ,  Susanne Schaefer ,  Michael Sick

IPC分类号： G01N27/404 ,  G01N27/416

CPC分类号： G01N27/404 ,  G01N27/416

摘要： An electrochemical gas sensor measures gaseous components in an air/gas mixture. A measuring electrode and a counterelectrode, with an electrolyte located therebetween, are arranged in the sensor housing. A diffusion barrier is configured to set a gas flow of the gas intended for the concentration determination to the measuring electrode from a surrounding area. The diffusion barrier is located in the sensor housing. At least one gas-permeable, hydrophobic pressure absorption element covers the diffusion barrier and is provided between the diffusion barrier and the measuring electrode, in the interior of the sensor housing and on an inner surface of the sensor housing. The inner surface has a mean roughness depth Rz that is lower than or equal to 2 μm at least in an area on which the pressure absorption element lies.

公开(公告)号：US11137367B2

公开(公告)日：2021-10-05

申请号：US15348163

申请日：2016-11-10

申请人： Dräger Safety AG & Co. KGaA

发明人： Joachim Gehrt ,  Susanne Schaefer

IPC分类号： G01N27/00 ,  B29C65/00 ,  B32B37/00 ,  G01N27/40 ,  G01N27/404 ,  B29C65/02 ,  B29C65/78 ,  B29C65/48 ,  G01N27/403 ,  B29C65/18 ,  B29C65/04 ,  B29C65/38 ,  B29C65/08 ,  B29C59/02 ,  B32B38/00 ,  B29K105/08 ,  B29K227/18 ,  B29L31/34

摘要： An electrolyte conductor (1) has a nonwoven fabric (2), onto which a plastic film (3) is laminated. A process is provided for the manufacture of the electrolyte conductor (1). An electrochemical gas sensor (10) is provided with such an electrolyte conductor (1). A gas-measuring device is provided with such a gas sensor (10).