发明授权
- 专利标题： Nitrogen oxide sensor
- 专利标题（中）： 氮氧化物传感器
-
申请号： US09191109申请日： 1998-11-13
-
公开(公告)号： US06319377B1公开(公告)日： 2001-11-20
- 发明人: Masaharu Hasei , Yongtie Yan , Yunzhi Gao , Takashi Ono , Akira Kunimoto
- 申请人： Masaharu Hasei , Yongtie Yan , Yunzhi Gao , Takashi Ono , Akira Kunimoto
- 优先权： JP9-329637 19971114; JP10-234337 19980820
- 主分类号： G01N27407
- IPC分类号： G01N27407
摘要：
A nitrogen oxide sensor enabled to enhance the measurement concentration of a total of nitrogen oxides by oxidizing or reducing the nitrogen oxides on the surfaces of electrodes in addition to the control of an oxygen concentration by an oxygen pump. An electrode (3a) in a gas chamber (18) constructing an oxygen pumping portion (3) is made of a material (e.g., Pt-3 wt % Rh) having a function to oxidize a nitrogen oxide gas.