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1. 发明授权

US06284112B1 Gas sensor 有权
标题翻译：气体传感器
公开(公告)号：US06284112B1
公开(公告)日：2001-09-04
申请号：US09251376
申请日：1999-02-17
申请人： Nobuhide Kato , Yasuhiko Hamada
发明人： Nobuhide Kato , Yasuhiko Hamada
IPC分类号： G01N27407
CPC分类号： G01N27/419
摘要： Disclosed is a gas sensor for measuring a NOx concentration comprising a main pumping cell and a detecting electrode, the main pumping cell including an electrode (an inner pumping electrode and an outer pumping electrode) having no decomposing/reducing ability for NOx or a low decomposing/reducing ability for NOx, to be used so that an oxygen concentration in a first chamber is controlled to have a predetermined value at which NO is not substantially decomposable, and the detecting electrode having a certain decomposing/reducing ability for NOx or a high decomposing/reducing ability for NOx, to be used so that NOx is decomposed to measure the NOx concentration by measuring an amount of oxygen produced during this process, wherein a buffering space is provided between a gas-introducing port and the first chamber. Accordingly, it is possible to avoid any influence of exhaust gas pressure pulsation generated in a measurement gas and improve the measurement accuracy on the detecting electrode.
摘要翻译：公开了一种用于测量包含主泵浦单元和检测电极的NOx浓度的气体传感器，该主泵浦单元包括不具有NOx分解/还原能力或低分解性的电极（内泵浦电极和外泵浦电极） / NOx的还原能力被使用，使得第一室中的氧浓度被控制为具有不能基本上分解NO的预定值，并且具有一定的NOx分解还原能力的检测电极或高分解 NOx的还原能力被使用，使得NOx被分解，以通过测量在该过程中产生的氧气的量来测量NOx浓度，其中在气体导入口和第一室之间设置有缓冲空间。因此，可以避免在测量气体中产生的废气压力脉动的影响，并提高检测电极的测量精度。

2. 发明授权

US6010615A Gas sensor and method for controlling gas sensor 失效
标题翻译：气体传感器及气体传感器控制方法
公开(公告)号：US6010615A
公开(公告)日：2000-01-04
申请号：US30900
申请日：1998-02-26
申请人： Nobuhide Kato , Yasuhiko Hamada
发明人： Nobuhide Kato , Yasuhiko Hamada
IPC分类号： G01N27/419 , G01N27/407 , G01N27/416 , G01N27/417 , G01F1/64 , G01N17/00 , G01N27/26
CPC分类号： G01N27/417 , G01N27/4074
摘要： Disclosed is a method for controlling a gas sensor comprising the steps of pumping-processing oxygen contained in a measurement gas introduced from external space into a first chamber by using a main pumping cell so that a partial pressure of oxygen in the first chamber is controlled to have a predetermined value at which a predetermined gas component as a measurement objective is not decomposable; decomposing the predetermined gas component contained in the measurement gas in a second chamber by the aid of a catalytic action and/or electrolysis by using a detecting pumping cell to pumping-process oxygen produced during the decomposition; and measuring the predetermined gas component contained in the measurement gas on the basis of a pumping current which flows during the pumping process; wherein the oxygen to be pumped out by the detecting pumping cell is pumped out toward an inner pumping electrode which is fixed to have a base electric potential (ground electric potential), of the main pumping cell. Accordingly, it is possible to facilitate miniaturization of a control circuit system of the gas sensor and reduction of the weight thereof.
摘要翻译：公开了一种用于控制气体传感器的方法，包括以下步骤：通过使用主泵送单元将从外部空间引入的测量气体中的氧气泵送到第一室中，使得将第一室中的氧分压控制为具有作为测量对象的预定气体成分不能分解的预定值; 借助于催化作用和/或电解，通过使用检测泵送单元对在分解过程中产生的氧进行泵浦处理，将第二室中包含的测量气体中的预定气体成分分解; 并且基于在泵送过程中流动的泵送电流来测量包含在测量气体中的预定气体成分; 其中由检测泵送单元泵出的氧被泵送到主泵送电池的固定为具有基极电位（地电位）的内部泵浦电极。因此，能够促进气体传感器的控制电路系统的小型化和减轻其重量。

3. 发明授权

US5879525A Apparatus for measuring combustible gas component by burning component 失效
标题翻译：用于通过燃烧部件测量可燃气体组分的装置
公开(公告)号：US5879525A
公开(公告)日：1999-03-09
申请号：US611771
申请日：1996-03-06
申请人： Nobuhide Kato
发明人： Nobuhide Kato
IPC分类号： G01N27/41 , G01N27/416 , G01N27/419 , G01N27/42 , G01N27/407
CPC分类号： G01N27/419
摘要： An apparatus for measuring a combustible gas component of a subject gas in an external subject gas space, including a first processing zone communicating with the subject gas space, a second processing zone communicating with the first processing zone, and a first and a second pumping cell exposed to the first and second processing zones, respectively, each cell including an oxygen ion conductive solid electrolyte layer and a pair of electrodes one of which is exposed to the first or second processing zone, wherein the first pumping cell pumps oxygen out of the first processing zone to control oxygen partial pressure in the first processing zone at a value at which the combustible gas component cannot be burned, while the second pumping cell pumps oxygen into the second processing zone to thereby burn the combustible gas component in the second processing zone, and the concentration of the combustible gas component is determined based on a current flowing or a voltage between the electrodes of the second pumping cell. The apparatus further comprises a proton pump for pumping hydrogen out of one of the first and second processing zones.
摘要翻译：一种用于测量外部主体气体空间中的主体气体的可燃气体成分的装置，包括与主体气体空间连通的第一处理区域，与第一处理区域连通的第二处理区域，以及第一和第二泵送单元暴露于第一处理区和第二处理区，每个单元包括氧离子传导固体电解质层和一对电极，其中一个电极暴露于第一或第二处理区，其中第一泵送单元将氧从第一和第二处理区抽出处理区域，以可燃气体成分不能燃烧的值控制第一处理区域中的氧分压，而第二抽水电池将氧气输送到第二处理区域，从而燃烧第二处理区域中的可燃气体成分，并且可燃气体组分的浓度基于电流之间的电流或电压来确定第二抽水电池的电极。该装置还包括用于从第一和第二处理区域之一中抽出氢的质子泵。

4. 发明授权

US4909922A Heater-built-in oxygen sensor 失效
标题翻译：加热器内置氧气传感器
公开(公告)号：US4909922A
公开(公告)日：1990-03-20
申请号：US359269
申请日：1989-05-31
申请人： Nobuhide Kato , Yasuhiko Hamada
发明人： Nobuhide Kato , Yasuhiko Hamada
IPC分类号： G01N27/409 , G01N27/14 , G01N27/406 , G01N27/407 , G01N27/416
CPC分类号： G01N27/4067 , G01N27/4072
摘要： A heater-built-in oxygen sensor having an electrochemical cell, a reservoir formed in substantial communication with a reference electrode of the cell, an electrically insulating member held in communication with the reservoir, a heating element disposed in contact with the insulating member, and cooperating with the cell and insulating member to constitute a major portion of an oxygen sensing element, and a direct current power source which is located outside the sensing element and to which the heating element is electrically connected. The low-potential portion of the sensing element connected to the negative terminal of the power source is electrically connected to a measuring electrode of the cell, so that a leak current of at least 0.1 microampere flows from the high-potential portion of the heating element connected to the positive terminal of the power source, to the insulating member through the insulating layer, at an elevated operating temperature of the sensing element, whereby oxygen is pumped from the external measurement gas to which the measuring electrode is exposed, into the reservoir as a reference gas to which the reference electrode is exposed. The reservoir may be defined by a porous structure of the insulating member.
摘要翻译：一种具有电化学电池的加热器内置的氧传感器，与电池的参比电极实质连通的储存器，与储存器连通的电绝缘构件，与绝缘构件接触设置的加热元件，以及与电池和绝缘构件配合以构成氧气感测元件的主要部分，以及位于感测元件外部并且加热元件电连接到其上的直流电源。连接到电源的负极端子的感测元件的低电位部分电连接到电池的测量电极，使得至少0.1微安的漏电流从加热元件的高电位部分流出连接到电源的正极端子，在感测元件的升高的工作温度下通过绝缘层连接到绝缘构件，由此将氧气从测量电极暴露的外部测量气体泵送到储存器中作为参考电极露出的参考气体。储存器可以由绝缘构件的多孔结构限定。

5. 发明授权

US4770760A Electrochemical NOx sensor 失效
标题翻译：电化学NOx传感器
公开(公告)号：US4770760A
公开(公告)日：1988-09-13
申请号：US079466
申请日：1987-07-30
申请人： Makoto Noda , Nobuhide Kato , Hiroshi Kurachi
发明人： Makoto Noda , Nobuhide Kato , Hiroshi Kurachi
IPC分类号： G01N27/419 , G01N27/26 , G01N27/407 , G01N27/409 , G01N27/413 , G01N27/416 , G01N33/00 , G01N27/46
CPC分类号： G01N27/4074 , G01N27/4072
摘要： An NOx sensor for determining the concentration of NOx contained in a measurement gas, having first and second electrochemical detecting elements each of which includes an oxygen pumping cell and an oxygen sensing cell. Each of the pumping and sensing cells of the first and second detecting elements consists of a solid electrolyte and a pair of electrodes. At least one of the electrodes of the oxygen pumping and sensing cells of the second detecting elements which are exposed to the introduced measurement gas, is used as a catalytic electrode which is provided with a catalyst for reducing the nitrogen oxides contained in the measurement gas. The second detecting element detects an oxygen partial pressure of the measurement gas while the nitrogen oxides are reduced by the catalyst of the catalytic electrode. The NOx concentration is determined, based on a difference between two outputs of the first and second detecting elements which represent the oxygen partial pressures of respective portions of the measurement gas detected by the first and second detecting elements.
摘要翻译：一种NOx传感器，用于确定测量气体中所含的NOx的浓度，其具有第一和第二电化学检测元件，每个包括氧气泵浦单元和氧气感测单元。第一和第二检测元件的每个泵送和感测单元由固体电解质和一对电极组成。使用暴露于引入的测量气体的第二检测元件的氧气泵送和感测单元的至少一个电极用作催化电极，该催化电极设置有用于还原测量气体中所含的氮氧化物的催化剂。第二检测元件在通过催化电极的催化剂还原氮氧化物的同时检测测量气体的氧分压。基于表示由第一和第二检测元件检测的测量气体的各部分的氧分压的第一和第二检测元件的两个输出之间的差异来确定NOx浓度。

6. 发明授权

US4528086A Oxygen sensor with heater 失效
标题翻译：带加热器的氧气传感器
公开(公告)号：US4528086A
公开(公告)日：1985-07-09
申请号：US604474
申请日：1984-04-27
申请人： Nobuhide Kato , Takao Murase
发明人： Nobuhide Kato , Takao Murase
IPC分类号： F02D41/14 , G01N27/406 , G01N27/409 , G01N27/46
CPC分类号： G01N27/4067
摘要： An oxygen sensor having a bar-shaped heater inserted in an elongate bore formed in a tubular body of solid electrolyte which has porous platinum electrodes on its inner and outer surfaces and which is supported by a housing such that its closed end portion is exposed to exhaust gas and such that the elongate bore is gas-tight with respect to the exhaust gas. The bar-shaped heater comprises a heating resistor having a positive temperature coefficient, a ceramic body carrying the heating resistor so as to embed the latter, and a pair of lead wires. The ceramic body has on its periphery a pair of terminal pads connected to the heating resistor. The ends of the lead wires are brazed to the terminal pads with a brazing material containing silver. The ceramic body further has a pair of equipotential members disposed outwardly of the pair of terminal pads to enclose at least portions of the peripheries of the pads which are opposite to each other.
摘要翻译：一种氧传感器，其具有插入在形成于固体电解质的管状体中的细长孔中的棒状加热器，其在其内表面和外表面上具有多孔铂电极，并且由壳体支撑，使得其封闭端部暴露于排气气体并且使得细长孔相对于废气气密。棒状加热器包括具有正温度系数的加热电阻器，承载加热电阻器以便嵌入加热电阻器的陶瓷体和一对引线。陶瓷体在其周边上具有连接到加热电阻器的一对端子焊盘。引线的端部用含有银的钎焊材料钎焊到端子焊盘。陶瓷体还具有一对等电位构件，该等电位构件设置在该对端子衬垫的外侧，以封闭彼此相对的衬垫周边的至少一部分。

7. 发明申请

US20070034531A1 Gas sensor and method for controlling the same 有权
公开(公告)号：US20070034531A1
公开(公告)日：2007-02-15
申请号：US11583195
申请日：2006-10-19
申请人： Nobuhide Kato , Yasuhiko Hamada , Nobuyuki Kokune
发明人： Nobuhide Kato , Yasuhiko Hamada , Nobuyuki Kokune
IPC分类号： G01F1/64 , G01N27/26
CPC分类号： G01N27/419
摘要： Disclosed is a gas sensor for controlling a concentration of oxygen and/or measuring NOx by allowing a current to flow through an ion-conductive member for conducting oxygen ion, by the aid of a current supply circuit, wherein the current, which is outputted from the current supply circuit, has a pulse waveform (current signal) having a constant crest value, and the current supply circuit comprises a rectangular wave-generating circuit for controlling a frequency of the current signal on the basis of an electromotive force generated in the ion-conductive member to which the current signal is supplied. Accordingly, it is possible to highly accurately measure the predetermined gas component while scarcely being affected by the electric noise or the like.

8. 发明授权

US07160435B2 Gas sensor and method for controlling the same 有权
标题翻译：气体传感器及其控制方法
公开(公告)号：US07160435B2
公开(公告)日：2007-01-09
申请号：US10608084
申请日：2003-06-27
申请人： Nobuhide Kato , Yasuhiko Hamada , Nobuyuki Kokune
发明人： Nobuhide Kato , Yasuhiko Hamada , Nobuyuki Kokune
IPC分类号： G01N27/407
CPC分类号： G01N27/419
摘要： Disclosed is a gas sensor for controlling a concentration of oxygen and/or measuring NOx by allowing a current to flow through an ion-conductive member for conducting oxygen ion, by the aid of a current supply circuit, wherein the current, which is outputted from the current supply circuit, has a pulse waveform (current signal) having a constant crest value, and the current supply circuit comprises a rectangular wave-generating circuit for controlling a frequency of the current signal on the basis of an electromotive force generated in the ion-conductive member to which the current signal is supplied. Accordingly, it is possible to highly accurately measure the predetermined gas component while scarcely being affected by the electric noise or the like.
摘要翻译：公开了一种气体传感器，用于通过允许电流通过用于导电氧离子的离子传导构件流过氧气浓度和/或测量NOx的气体传感器，借助于电流供应电路，其中从电流供应电路具有恒定波峰值的脉冲波形（电流信号），并且电流供应电路包括矩形波发生电路，用于基于在离子中产生的电动势来控制电流信号的频率电流信号被供给到该导电构件。因此，可以高度精确地测量预定的气体成分，同时几乎不受电噪声等的影响。

9. 发明授权

US06770181B2 Gas sensor and nitrogen oxide sensor 有权
标题翻译：气体传感器和氮氧化物传感器
公开(公告)号：US06770181B2
公开(公告)日：2004-08-03
申请号：US10342846
申请日：2003-01-15
申请人： Nobuhide Kato , Kunihiko Nakagaki
发明人： Nobuhide Kato , Kunihiko Nakagaki
IPC分类号： G01N27407
CPC分类号： G01N27/4072 , G01N27/417 , G01N27/419
摘要： A gas sensor for measuring an amount of a measurement gas component, including a solid electrolyte having an internal space, a gas-introducing port for introducing measurement gas from an external space into the internal space, diffusion rate-determining means between the internal space and the gas-introducing port, and inner and outer pumping electrodes for pumping-processing oxygen contained in the measurement gas. The diffusion rate-determining means includes slits each having, when viewed in a plane substantially perpendicular to a longitudinal extension axis thereof, two dimensions, with at least one dimension of each slit being not more than 10 microns.
摘要翻译：一种用于测量包括具有内部空间的固体电解质的测量气体成分的量的气体传感器，用于将测量气体从外部空间引入内部空间的气体引入口，内部空间与内部空间之间的扩散速率确定装置气体导入口，以及用于泵送处理含有在测量气体中的氧的内部和外部泵浦电极。扩散速率确定装置包括当在基本上垂直于其纵向延伸轴线的平面中观察时具有两个尺寸的狭缝，每个狭缝的至少一个尺寸不大于10微米。

10. 发明授权

US06419818B2 NOx concentration-measuring method 有权
标题翻译： NOx浓度测定法
公开(公告)号：US06419818B2
公开(公告)日：2002-07-16
申请号：US09212491
申请日：1998-12-17
申请人： Nobuhide Kato , Kunihiko Nakagaki , Satoshi Nishikawa
发明人： Nobuhide Kato , Kunihiko Nakagaki , Satoshi Nishikawa
IPC分类号： G01N27407
CPC分类号： G01N27/419 , G01N27/4074 , G01N27/4075 , G01N27/417 , G01N33/0037 , Y02A50/245
摘要： Disclosed is a NOx sensor for measuring a NOx concentration comprising a main pumping cell and a detecting electrode, the main pumping cell including an electrode (an inner pumping electrode and an outer pumping electrode) having no decomposing/reducing ability for NOx or a low decomposing/reducing ability for NOx, to be used so that an oxygen concentration in a measurement gas is controlled to have a predetermined value at which NO is not substantially decomposable, and the detecting electrode having a certain decomposing/reducing ability for NOx or a high decomposing/reducing ability for NOx, to be used so that NOx is decomposed to measure the NOx concentration by measuring an amount of oxygen produced during this process, wherein a cermet electrode composed of a Pt—Rh alloy and a ceramic component is used as the detecting electrode. Accordingly, it is possible to suppress the oxidation of Rh and the reconversion into the metal contained in the detecting electrode, stabilize the impedance, and stabilize the sensitivity to NOx.
摘要翻译：公开了一种用于测量包括主泵浦单元和检测电极的NOx浓度的NOx传感器，该主泵浦单元包括不具有NOx分解/还原能力或低分解能力的电极（内泵浦电极和外泵浦电极） / NOx的还原能力，使得测量气体中的氧浓度被控制为具有不能基本上分解NO的预定值，并且具有一定的NOx分解/还原能力的检测电极或高分解使用NOx的还原能力，使得NOx分解，通过测量在该过程中产生的氧气的量来测量NOx浓度，其中使用由Pt-Rh合金和陶瓷组分组成的金属陶瓷电极作为检测电极。因此，可以抑制Rh的氧化和再次转化成检测电极中所含的金属，稳定阻抗，并且使对NOx的敏感性稳定。

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