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。

公开(公告)号：US08506780B2

公开(公告)日：2013-08-13

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： G01N27/26

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 fowled 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。 当在内部空间的表面上浮动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。

公开(公告)号：US09091646B2

公开(公告)日：2015-07-28

申请号：US13013094

申请日：2011-01-25

申请人： Sumiko Horisaka ,  Hiroki Fujita ,  Mika Murakami ,  Takashi Ito

发明人： Sumiko Horisaka ,  Hiroki Fujita ,  Mika Murakami ,  Takashi Ito

IPC分类号： G01N27/26 ,  G01N27/407 ,  G01N33/00

CPC分类号： G01N27/4077 ,  G01N27/4075 ,  G01N33/0037 ,  Y02A50/245

摘要： A NOx sensor 100 includes a sensor device 110 and a heater 70 capable of heating the sensor device 110. The sensor device 110 includes an inner pump electrode 22 and an outer pump electrode 23 disposed respectively on the inner side and the outer side of a solid electrolyte layer 6. The sensor device 110 detects the concentration of NOx by introducing a gas to be measured into a first inner vacancy 20, pumping out oxygen in the gas to be measured from the inner pump electrode 22 to the outer pump electrode 23, introducing the gas to be measured, from which the oxygen has been pumped out, into a second inner vacancy 40, reducing the NOx in the gas to be measured, to thereby generate oxygen, and detecting the generated oxygen. A characteristic stabilizing layer 24 covers the outer pump electrode 23 and is made of a porous body with a thickness of 10 to 200 μm and a thickness variation of 20% or less.

摘要翻译： NOx传感器100包括能够加热传感器装置110的传感器装置110和加热器70.传感器装置110包括分别设置在固体的内侧和外侧的内泵电极22和外泵电极23 电解质层6.传感器装置110通过将待测量的气体引入第一内部空间20来检测NOx的浓度，从内部泵电极22向外部泵电极23抽出待测量的气体中的氧气，引入 待被测量的气体已被排出氧气，进入第二内部空位40，减少要测量的气体中的NOx，从而产生氧气，并检测所产生的氧气。 特性稳定层24覆盖外泵电极23，由厚度为10〜200μm，厚度变化为20％以下的多孔体构成。

公开(公告)号：US08623187B2

公开(公告)日：2014-01-07

申请号：US13053605

申请日：2011-03-22

申请人： Sumiko Horisaka ,  Hiroki Fujita ,  Mika Murakami ,  Takashi Ito

发明人： Sumiko Horisaka ,  Hiroki Fujita ,  Mika Murakami ,  Takashi Ito

IPC分类号： G01N27/417

CPC分类号： G01N27/409 ,  G01N27/4071 ,  G01N27/4072 ,  G01N27/4074 ,  G01N27/417 ,  G01N27/419

摘要： A gas sensor including a sensor element constituted by an oxygen-ion conductive solid electrolyte as a main component and detecting a predetermined gas component in a measurement gas includes: an external communication part having an opening opened to the outside, and introducing the measurement gas from the outside under a predetermined diffusion resistance; an internal space communicating with the external communication part; a first electrode formed on a surface of the internal space; a second electrode formed in a space different from the internal space; and a pumping cell operable to pump out oxygen existing in the internal space when a predetermined voltage is applied between the first electrode and the second electrode. The thickness of the external communication part is 50% or more and 100% or less of the thickness of the internal space.

摘要翻译： 一种气体传感器，包括由氧离子传导性固体电解质作为主要成分构成的检测测定气体中的规定气体成分的传感器元件，具有：外部连通部，具有向外部开放的开口，将测定气体从 外部在预定的扩散阻力下; 与外部通信部分通信的内部空间; 形成在所述内部空间的表面上的第一电极; 形成在与所述内部空间不同的空间中的第二电极; 以及当在第一电极和第二电极之间施加预定电压时，可操作地泵送存在于内部空间中的氧气的泵送单元。 外部连通部的厚度为内部空间的厚度的50％以上且100％以下。

公开(公告)号：US20110226618A1

公开(公告)日：2011-09-22

申请号：US13043888

申请日：2011-03-09

申请人： Hiroki Fujita ,  Sumiko Horisaka ,  Mika Murakami ,  Takashi Ito

发明人： Hiroki Fujita ,  Sumiko Horisaka ,  Mika Murakami ,  Takashi Ito

IPC分类号： G01N27/30

CPC分类号： G01N27/41 ,  G01N27/4071 ,  G01N27/4072 ,  G01N27/4074 ,  G01N27/417 ,  G01N27/419

摘要： A gas sensor including an internal space, a first electrode, a second electrode, a pumping cell, a third electrode, a fourth electrode, a measuring cell, and a porous diffusion layer. The first and third electrodes, and the second and fourth electrodes are formed inside and outside the internal space, respectively. The pumping cell includes the first and second electrodes, and the measuring cell includes the third and fourth electrodes. The pumping cell pumps oxygen from the internal space when a predetermined voltage is applied between the first and second electrodes. The third electrode reduces an oxide gas component in a predetermined gas component to which a predetermined diffusion resistance has been applied by the porous diffusion layer. The measuring cell measures current flow between the third and fourth electrodes when a voltage corresponding to the degree of reduction in the third electrode is applied between the third and fourth electrodes.

摘要翻译： 一种气体传感器，包括内部空间，第一电极，第二电极，泵浦单元，第三电极，第四电极，测量单元和多孔扩散层。 第一和第三电极以及第二和第四电极分别形成在内部空间内部和外部。 泵浦单元包括第一和第二电极，测量单元包括第三和第四电极。 当在第一和第二电极之间施加预定电压时，泵送单元从内部空间泵送氧气。 第三电极通过多孔扩散层减少预定的扩散电阻施加到预定的气体成分中的氧化物气体成分。 当在第三和第四电极之间施加与第三电极的减小程度相对应的电压时，测量单元测量第三和第四电极之间的电流。

公开(公告)号：US20110147214A1

公开(公告)日：2011-06-23

申请号：US12904417

申请日：2010-10-14

申请人： Hiroki FUJITA ,  Sumiko Horisaka ,  Mika Murakami ,  Takashi Ito

发明人： Hiroki FUJITA ,  Sumiko Horisaka ,  Mika Murakami ,  Takashi Ito

IPC分类号： G01N27/30 ,  H05K13/00

CPC分类号： G01N27/4071 ,  G01N27/419

摘要： A gas sensor capable of a high-accuracy measurement which is realized by a high responsiveness and a strength that prevents a sensor element from being damaged by a stress occurring in assemblage and usage. This gas sensor includes a sensor element formed of an oxygen-ion conductive solid electrolyte as a main component, and the sensor element includes: an internal space to which a measurement gas is introduced from the outside; a first electrode formed on a surface of the internal space; a second electrode formed in a space different from the internal space; and a pumping cell including the first and second electrodes. The pumping cell is operable to pump out oxygen existing in the internal space when a predetermined voltage is applied to between the first and second electrodes. The thickness of the internal space is 50 μm or more and 180 μm or less.

摘要翻译： 能够通过高响应性和强度实现高精度测量的气体传感器，其防止传感器元件被组装和使用中发生的应力损坏。 该气体传感器包括由氧离子导电固体电解质作为主要成分形成的传感器元件，并且传感器元件包括：从外部引入测量气体的内部空间; 形成在所述内部空间的表面上的第一电极; 形成在与所述内部空间不同的空间中的第二电极; 以及包括第一和第二电极的泵浦单元。 当预定电压施加到第一和第二电极之间时，泵送单元可操作以泵出存在于内部空间中的氧气。 内部空间的厚度为50μm以上且180μm以下。

公开(公告)号：US08398836B2

公开(公告)日：2013-03-19

申请号：US12853527

申请日：2010-08-10

申请人： Sumiko Horisaka ,  Sang Jae Lee ,  Kosuke Nakagawa

发明人： Sumiko Horisaka ,  Sang Jae Lee ,  Kosuke Nakagawa

IPC分类号： G01N27/41

CPC分类号： G01N27/4071 ,  G01N27/419

摘要： A gas sensor having a sensor element that includes an inner space for introducing a measurement gas therein from an external space and a pump cell which has a first electrode formed on a surface of the inner space and a second electrode formed in a space different from the inner space and is provided to pump oxygen out of the inner space by applying a predetermined voltage between the first electrode and the second electrode. Assuming that the length of the inner space in a short-side direction of the sensor element as viewed from the front end portion side thereof is x1 and the length of the inner space in a longitudinal direction of the sensor element as viewed from the front end portion side thereof is x2, the following inequality is satisfied: 0.05≦x1/x2≦0.25.

摘要翻译： 一种具有传感器元件的气体传感器，该传感器元件包括用于从外部空间引入测量气体的内部空间和具有形成在所述内部空间的表面上的第一电极的泵电池和形成在与所述内部空间不同的空间中的第二电极 内部空间并且被提供以通过在第一电极和第二电极之间施加预定电压将氧气输送出内部空间。 假设从前端部侧观察传感器元件的短边方向的内部空间的长度为从前端观察时的传感器元件的长度方向的内部空间的长度 其部分侧为x2，满足以下不等式：0.05＆nlE; x1 / x2＆nlE; 0.25。

公开(公告)号：US20090242401A1

公开(公告)日：2009-10-01

申请号：US12413866

申请日：2009-03-30

申请人： Sumiko Horisaka ,  San Jae Lee

发明人： Sumiko Horisaka ,  San Jae Lee

IPC分类号： G01N27/26

CPC分类号： G01N27/4071 ,  G01N27/419

摘要： A sensor for specifying a concentration of a predetermined gas component in a measurement gas on the basis of a current flowing in an electrolyte by decomposition of the predetermined gas component, includes an internal space; a reference gas space; a pumping cell capable of pumping out oxygen in the internal space by applying a predetermined voltage between a first electrode and a second electrode; and a measuring cell including third and fourth electrodes and measuring a current flowing when a voltage is applied between the third electrode and the fourth electrode; wherein the first electrode is formed of porous cermet consisted of a noble metal and an oxygen ion conductive solid electrolyte, and the porosity of the first electrode is greater than or equal to 10% and less than or equal to 50%.

摘要翻译： 基于通过分解预定气体成分在电解液中流动的电流来确定测量气体中的预定气体成分的浓度的传感器包括内部空间; 参考气体空间; 能够通过在第一电极和第二电极之间施加预定电压而在内部空间中泵出氧气的泵浦单元; 以及测量单元，包括第三和第四电极，并且测量当在所述第三电极和所述第四电极之间施加电压时流动的电流; 其中所述第一电极由贵金属和氧离子导电固体电解质组成的多孔金属陶瓷形成，并且所述第一电极的孔隙率大于等于10％且小于或等于50％。

公开(公告)号：US08366893B2

公开(公告)日：2013-02-05

申请号：US12732298

申请日：2010-03-26

申请人： Shinji Fujisaki ,  Aya Sato ,  Yukimasa Mori ,  Sumiko Horisaka

发明人： Shinji Fujisaki ,  Aya Sato ,  Yukimasa Mori ,  Sumiko Horisaka

IPC分类号： G01N27/26

CPC分类号： G01N27/4075

摘要： A gas sensor including a pump electrode and a method for manufacturing a conductive paste for forming the pump electrode. When the pump electrode constituting an electrochemical pump cell for adjusting an oxygen partial pressure inside a gas sensor to measure a concentration of a gas component in a measurement gas by a current-limiting method is formed of a cermet of a noble metal and an oxide having oxygen ion conductivity, the noble metal contains a first noble metal having a catalytic activity, and a second noble metal having a catalytic activity suppressing ability to suppress the catalytic activity of the first noble metal with respect to an oxide gas except for oxygen, and an abundance ratio of the second noble metal with respect to the first noble metal in a particle surface of the first noble metal existing in the pump electrode is to be 0.01 to 0.3.

摘要翻译： 一种气体传感器，包括泵电极和用于制造用于形成泵电极的导电浆料的方法。 当构成用于调节气体传感器内部氧分压的电极泵电极通过限流法测量测量气体中的气体成分的浓度由贵金属和氧化物的金属陶瓷形成时， 氧离子传导性，贵金属含有具有催化活性的第一贵金属和具有抑制第一贵金属相对于除了氧之外的氧化物气体的催化活性的催化活性抑制能力的第二贵金属，以及 在泵电极中存在的第一贵金属的粒子表面中的第二贵金属相对于第一贵金属的丰度比为0.01〜0.3。

公开(公告)号：US08197652B2

公开(公告)日：2012-06-12

申请号：US12413866

申请日：2009-03-30

申请人： Sumiko Horisaka ,  San Jae Lee

发明人： Sumiko Horisaka ,  San Jae Lee

IPC分类号： G01N27/409 ,  G01N27/41

CPC分类号： G01N27/4071 ,  G01N27/419

摘要： A sensor for specifying a concentration of a predetermined gas component in a measurement gas on the basis of a current flowing in an electrolyte by decomposition of the predetermined gas component, includes an internal space; a reference gas space; a pumping cell capable of pumping out oxygen in the internal space by applying a predetermined voltage between a first electrode and a second electrode; and a measuring cell including third and fourth electrodes and measuring a current flowing when a voltage is applied between the third electrode and the fourth electrode; wherein the first electrode is formed of porous cermet consisted of a noble metal and an oxygen ion conductive solid electrolyte, and the porosity of the first electrode is greater than or equal to 10% and less than or equal to 50%.

摘要翻译： 基于通过分解预定气体成分在电解液中流动的电流来确定测量气体中的预定气体成分的浓度的传感器包括内部空间; 参考气体空间; 能够通过在第一电极和第二电极之间施加预定电压而在内部空间中泵出氧气的泵浦单元; 以及测量单元，包括第三和第四电极，并且测量当在所述第三电极和所述第四电极之间施加电压时流动的电流; 其中所述第一电极由贵金属和氧离子导电固体电解质组成的多孔金属陶瓷形成，并且所述第一电极的孔隙率大于等于10％且小于或等于50％。