公开(公告)号：US20120247957A1

公开(公告)日：2012-10-04

申请号：US13413933

申请日：2012-03-07

申请人： Mika MURAKAMI ,  Naoya SAITO ,  Tomoya SEIMORI

发明人： Mika MURAKAMI ,  Naoya SAITO ,  Tomoya SEIMORI

IPC分类号： G01N27/407

CPC分类号： G01N27/4067

摘要： A gas sensor is provided with a multilayer body of solid electrolyte layers, a measurement electrode, a reference electrode, a reference gas introduction layer, a detection unit and a heater. The reference electrode and the measurement electrode are formed directly on the same first solid electrolyte layer. Thus, heat from the heater is transferred from a third substrate layer to the first solid electrolyte layer, and also to the reference electrode and the measurement electrode through the same first solid electrolyte layer. The reference electrode is covered with a reference gas introduction layer, formed of a porous body. The transference of heat from the heater to the reference electrode through the reference gas introduction layer is smaller than the transference of heat from the heater to the reference electrode through the first solid electrolyte layer on which the reference electrode is formed directly.

摘要翻译： 气体传感器设置有固体电解质层的多层体，测量电极，参考电极，参考气体引入层，检测单元和加热器。 参考电极和测量电极直接形成在相同的第一固体电解质层上。 因此，来自加热器的热量从第三基底层转移到第一固体电解质层，并且通过相同的第一固体电解质层转移到参考电极和测量电极。 参考电极由多孔体形成的参考气体导入层覆盖。 通过参考气体导入层从加热器到参考电极的热转移比通过其上直接形成参考电极的第一固体电解质层从加热器到参考电极的热传递小。

公开(公告)号：US20110083490A1

公开(公告)日：2011-04-14

申请号：US12902458

申请日：2010-10-12

申请人： Mika MURAKAMI ,  Hiroki Fujita ,  Sumiko Horisaka ,  Takashi Ito ,  Sang Jae Lee

发明人： Mika MURAKAMI ,  Hiroki Fujita ,  Sumiko Horisaka ,  Takashi Ito ,  Sang Jae Lee

IPC分类号： G01N33/00

CPC分类号： G01N27/419 ,  G01N27/4071

摘要： A gas sensor includes an internal space, diffusion control part, pumping cell, and measuring cell. The diffusion control part communicates with the internal space and has a slit-like shape with a smaller thickness than that of the internal space. The pumping cell pumps out oxygen from the internal space when voltage is applied between a first electrode formed on a surface of the internal space and a second electrode formed outside the internal space. The measuring cell measures a current flowing between a third and fourth electrodes when a voltage is applied between the third and fourth electrodes. The third electrode is formed in the diffusion control part, and can reduce an oxide gas component in a predetermined gas component to which a predetermined diffusion resistance has been applied by the diffusion control part. The fourth electrode is formed in a part different from the diffusion control part.

摘要翻译： 气体传感器包括内部空间，扩散控制部分，泵浦单元和测量单元。 扩散控制部与内部空间连通，具有比内部空间小的狭缝形状。 当在形成在内部空间的表面上的第一电极和形成在内部空间外部的第二电极之间施加电压时，泵送单元从内部空间泵出氧气。 当在第三和第四电极之间施加电压时，测量单元测量在第三和第四电极之间流动的电流。 第三电极形成在扩散控制部分中，并且可以通过扩散控制部分减少已经施加预定扩散电阻的预定气体成分中的氧化物气体成分。 第四电极形成在与扩散控制部分不同的部分中。