发明授权
- 专利标题： Gas sensor element with lead-proof effect
- 专利标题（中）： 气体传感器元件具有防铅效果
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申请号： US09511079申请日： 2000-02-23
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公开(公告)号： US06409899B1公开(公告)日： 2002-06-25
- 发明人: Motoaki Satou , Yasumichi Hotta , Namitsugu Fujii , Hiromi Sano
- 申请人： Motoaki Satou , Yasumichi Hotta , Namitsugu Fujii , Hiromi Sano
- 优先权： JP11-48467 19990225; JP11-347682 19991207
- 主分类号： G01N27407
- IPC分类号： G01N27407
摘要：
A sensor element has a solid electrolyte body holding a reference gas side electrode and a measurement gas side electrode on surfaces thereof. The measurement gas side electrode is covered with a porous protective layer including a component as a lead getter, which reacts with lead contained in measurement gas. Accordingly, lead is removed from measurement gas by the protective layer not to be attached to the measurement gas side electrode. As a result, the sensor element can be used in measurement gas containing lead, without deteriorating responsibility and output thereof.