公开(公告)号：US20050093551A1

公开(公告)日：2005-05-05

申请号：US10798746

申请日：2004-03-10

申请人： Helmut Weyl ,  Jens Schneider ,  Detlef Heimann ,  Thomas Wahl ,  Hans-Joerg Renz ,  Norman Hahn ,  James Waldrop ,  Damien Barnes ,  Mike McCormick ,  John Day

发明人： Helmut Weyl ,  Jens Schneider ,  Detlef Heimann ,  Thomas Wahl ,  Hans-Joerg Renz ,  Norman Hahn ,  James Waldrop ,  Damien Barnes ,  Mike McCormick ,  John Day

IPC分类号： G01N27/407 ,  G01N27/26

CPC分类号： G01N27/4071

摘要： An unheated planar sensor element for determining the concentration of a gas component in a gas mixture, in particular the oxygen concentration in the exhaust gas of an internal combustion engine, has a sensor foil made of a solid electrolyte with an outer electrode exposed to the measuring gas, and an inner electrode exposed to a reference gas, as well as a reference-gas channel, which is covered by the sensor foil on one side and accommodates the inner electrode. To produce a small-volume, cost-effective unheated sensor element for use in small combustion engines having low power output yet sufficiently satisfactory measuring accuracy, the reference-gas channel is sealed on the underside by an additional sensor foil made of a solid electrolyte, and covered by an inner electrode lying inside the reference-gas channel and an outer electrode exposed to the measuring gas.

公开(公告)号：US06940287B2

公开(公告)日：2005-09-06

申请号：US10798746

申请日：2004-03-10

申请人： Helmut Weyl ,  Jens Schneider ,  Detlef Heimann ,  Thomas Wahl ,  Hans-Joerg Renz ,  Norman Hahn ,  James Richard Waldrop, II ,  Damien Barnes ,  Mike McCormick ,  John Day

发明人： Helmut Weyl ,  Jens Schneider ,  Detlef Heimann ,  Thomas Wahl ,  Hans-Joerg Renz ,  Norman Hahn ,  James Richard Waldrop, II ,  Damien Barnes ,  Mike McCormick ,  John Day

IPC分类号： G01N27/407 ,  G01N27/62 ,  G01N27/26

CPC分类号： G01N27/4071

摘要： An unheated planar sensor element for determining the concentration of a gas component in a gas mixture, in particular the oxygen concentration in the exhaust gas of an internal combustion engine, has a sensor foil made of a solid electrolyte with an outer electrode exposed to the measuring gas, and an inner electrode exposed to a reference gas, as well as a reference-gas channel, which is covered by the sensor foil on one side and accommodates the inner electrode. To produce a small-volume, cost-effective unheated sensor element for use in small combustion engines having low power output yet sufficiently satisfactory measuring accuracy, the reference-gas channel is sealed on the underside by an additional sensor foil made of a solid electrolyte, and covered by an inner electrode lying inside the reference-gas channel and an outer electrode exposed to the measuring gas.

摘要翻译： 用于确定气体混合物中的气体组分的浓度，特别是内燃机的排气中的氧气浓度的未加热的平面传感器元件具有由固体电解质制成的传感器箔，外部电极暴露于测量 气体和暴露于参考气体的内部电极以及参考气体通道，其被一侧的传感器箔覆盖并容纳内部电极。 为了生产用于具有低功率输出但足够令人满意的测量精度的小型燃烧发动机中的小体积，具有成本效益的未加热传感器元件，参考气体通道由固体电解质制成的另外的传感器箔密封在底面上， 并且被位于参考气体通道内部的内部电极和暴露于测量气体的外部电极覆盖。