| 摘要 |
<p>A gas sensor comprises a gas mixture chamber (2), which is provided on a diffusion channel (1). Another chamber (4) is provided on another diffusion channel (3), where the latter diffusion channel is connected directly or indirectly with the former diffusion chamber. An electrochemical hydrogen pump (5) and an electrochemical oxygen pump (9) are also included in the gas sensor, where the electrochemical hydrogen pump has an inner hydrogen pump electrode (6) arranged in the former chamber, and a hydrogen pump electrode (8). A gas sensor comprises a gas mixture chamber, which is provided on a diffusion channel. Another chamber is provided on another diffusion channel, where the latter diffusion channel is connected directly or indirectly with the former diffusion chamber. An electrochemical hydrogen pump and an electrochemical oxygen pump are also included in the gas sensor, where the electrochemical hydrogen pump has an inner hydrogen pump electrode arranged in the former chamber and an outer hydrogen pump electrode, which stays conductively in contact with the inner hydrogen pump electrode through a proton-conducting layer (7). The electrochemical oxygen pump comprises another inner oxygen pump electrode (10) arranged in the latter chamber and another oxygen pump electrode (12), which stays conductively in contact with the latter inner oxygen pump electrode through oxygen ion conducting layer (11). An independent claim is also included for a method for determining oxygen-gas components, particularly nitrogen oxides which involves feeding gas mixture of hydrogen and oxygen-containing gas components, particularly nitrogen oxides in an oxygen pump.</p> |
