发明授权
- 专利标题: Measuring NOx concentration
- 专利标题(中): 测量NOx浓度
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申请号: US09469239申请日: 1999-12-22
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公开(公告)号: US06551497B1公开(公告)日: 2003-04-22
- 发明人: Yunzhi Gao , Akira Kunimoto , Yongtie Yan , Hideyuki Kurosawa , Yukio Nakanouchi , Norio Miura , Noboru Yamazoe , Masaharu Hasei
- 申请人: Yunzhi Gao , Akira Kunimoto , Yongtie Yan , Hideyuki Kurosawa , Yukio Nakanouchi , Norio Miura , Noboru Yamazoe , Masaharu Hasei
- 优先权: JP9-265061 19960917
- 主分类号: G01N27407
- IPC分类号: G01N27407
摘要:
A gas sensor for measuring concentration of a gas component in a measured gas, including a solid electrolytic substrate and at least two electrodes fixed to the substrate. At least a first electrode of the electrodes is disposed in the environment of the measurement gas, at least one of electrodes is polarized by applying a bias current or bias voltage, and a change in the potential of the polarized electrode is measured to thereby measure the concentration of the target gas.