发明授权
- 专利标题： Gas sensor
- 专利标题（中）： 气体传感器
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申请号： US13565040申请日： 2012-08-02
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公开(公告)号： US08771488B2公开(公告)日： 2014-07-08
- 发明人: Tetsuya Ito , Satoshi Teramoto , Kentaro Mori
- 申请人： Tetsuya Ito , Satoshi Teramoto , Kentaro Mori
- 申请人地址： JP Aichi
- 专利权人： NGK Spark Plug Co., Ltd.
- 当前专利权人： NGK Spark Plug Co., Ltd.
- 当前专利权人地址： JP Aichi
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2011-169070 20110802; JP2012-126737 20120604
- 主分类号： G01N27/419
- IPC分类号： G01N27/419 ; G01N27/406 ; G01N27/409 ; G01N27/407
摘要：
A gas sensor (100) includes an oxygen pump cell (135) and an oxygen-concentration detection cell (150) laminated together with a spacer (145) interposed therebetween. The spacer (145) has a gas detection chamber (145c) which faces electrodes (137, 152) of the cells (135, 150). The oxygen-concentration detection cell (150) produces an output voltage corresponding to the concentration of oxygen in the gas detection chamber (145c). The oxygen pump cell (135) pumps oxygen into and out of the measurement chamber (145c) such that the output voltage of the oxygen-concentration detection cell (150) becomes equal to a predetermined target voltage. A leakage portion mainly formed of zirconia is disposed between which electrically connects the oxygen-concentration detection cell (150) and the oxygen pump cell (135).
公开/授权文献
- US20130032480A1 GAS SENSOR 公开/授权日：2013-02-07
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