发明授权
EP0386006B2 SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES LAMBDA WERTES VON GASGEMISCHEN 失效
传感器元件用于确定气体混合物的λ值极限电流传感器。

  • 专利标题: SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES LAMBDA WERTES VON GASGEMISCHEN
  • 专利标题(英): Sensor element for limit sensors for determining the lambda value of gaseous mixtures
  • 专利标题(中): 传感器元件用于确定气体混合物的λ值极限电流传感器。
  • 申请号: EP88907117.1
    申请日: 1988-08-20
  • 公开(公告)号: EP0386006B2
    公开(公告)日: 1995-07-12
  • 发明人: FRIESE, Karl-HermannGRÜNWALD, Werner
  • 申请人: ROBERT BOSCH GMBH
  • 申请人地址: Postfach 30 02 20 70442 Stuttgart DE
  • 专利权人: ROBERT BOSCH GMBH
  • 当前专利权人: ROBERT BOSCH GMBH
  • 当前专利权人地址: Postfach 30 02 20 70442 Stuttgart DE
  • 优先权: DE3728618 19870827
  • 国际公布: WO8902074 19890309
  • 主分类号: G01N27/419
  • IPC分类号: G01N27/419
SENSORELEMENT FÜR GRENZSTROMSENSOREN ZUR BESTIMMUNG DES LAMBDA WERTES VON GASGEMISCHEN
摘要:
A sensor element for limit sensors for determining the lambda value of gaseous mixtures comprises at least two mutually opposite internal pump electrodes (8 and 8') arranged in a diffusion channel (7). In this way the undesirable electrode polarization which readily occurs in sensor elements with a single internal pump electrode is substantially reduced. At the same time, better use is made of the noble metals required to make the pump electrodes.
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