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    Gas-concentration/humidity detection apparatus
    4.
    发明授权
    Gas-concentration/humidity detection apparatus 有权
    气体浓度/湿度检测装置

    公开(公告)号：US08603310B2

    公开(公告)日：2013-12-10

    申请号：US13147988

    申请日：2010-04-19

    申请人： Noboru Ishida ,  Kentaro Mori ,  Tomohiro Tajima

    发明人： Noboru Ishida ,  Kentaro Mori ,  Tomohiro Tajima

    IPC分类号： G01N27/409 ,  G01N27/41

    CPC分类号： G01N27/419

    摘要： A sensor control apparatus (3) includes a full-range gas sensor composed of an oxygen concentration detection cell having a pair of electrodes (21, 22) and an oxygen pump cell having a pair of electrodes (19, 20). In an electric circuit section (30), an Ip current flowing between the electrodes (19, 20) is controlled such that an electromotive force Vs produced between the electrodes (21, 22) becomes equal to a reference voltage. The reference voltage is usually set to a first reference voltage. However, when the subject gas is air, the reference voltage is set to a second reference voltage. Humidity of the subject gas is detected on the basis of an error ΔIp between an Ip current detected when the reference voltage is set to the first reference voltage, and an Ip current detected when the reference voltage is set to the second reference voltage.

    摘要翻译： 传感器控制装置（3）包括由具有一对电极（21,22）的氧浓度检测单元和具有一对电极（19,20）的氧气泵单元组成的全范围气体传感器。 在电路部分（30）中，控制在电极（19,20）之间流动的Ip电流，使得在电极（21,22）之间产生的电动势Vs变为等于参考电压。 参考电压通常设置为第一参考电压。 然而，当目标气体是空气时，参考电压被设置为第二参考电压。 基于当将参考电压设置为第一参考电压时检测到的Ip电流与将参考电压设置为第二参考电压时检测到的Ip电流之间的误差ΔIpp来检测目标气体的湿度。

    GAS-CONCENTRATION/HUMIDITY DETECTION APPARATUS
    6.
    发明申请
    GAS-CONCENTRATION/HUMIDITY DETECTION APPARATUS 有权
    气体浓度/湿度检测装置

    公开(公告)号：US20110290015A1

    公开(公告)日：2011-12-01

    申请号：US13147988

    申请日：2010-04-19

    申请人： Noboru Ishida ,  Kentaro Mori ,  Tomohiro Tajima

    发明人： Noboru Ishida ,  Kentaro Mori ,  Tomohiro Tajima

    IPC分类号： G01N27/12

    CPC分类号： G01N27/419

    摘要： A sensor control apparatus (3) includes a full-range gas sensor composed of an oxygen concentration detection cell having a pair of electrodes (21, 22) and an oxygen pump cell having a pair of electrodes (19, 20). In an electric circuit section (30), an Ip current flowing between the electrodes (19, 20) is controlled such that an electromotive force Vs produced between the electrodes (21, 22) becomes equal to a reference voltage. The reference voltage is usually set to a first reference voltage. However, when the subject gas is air, the reference voltage is set to a second reference voltage. Humidity of the subject gas is detected on the basis of an error ΔIp between an Ip current detected when the reference voltage is set to the first reference voltage, and an Ip current detected when the reference voltage is set to the second reference voltage.

    摘要翻译： 传感器控制装置（3）包括由具有一对电极（21,22）的氧浓度检测单元和具有一对电极（19,20）的氧气泵单元组成的全范围气体传感器。 在电路部分（30）中，控制在电极（19,20）之间流动的Ip电流，使得在电极（21,22）之间产生的电动势Vs变为等于参考电压。 参考电压通常设置为第一参考电压。 然而，当目标气体是空气时，参考电压被设置为第二参考电压。 基于当参考电压被设置为第一参考电压时检测到的Ip电流与将参考电压设置为第二参考电压时检测到的Ip电流之间的误差＆Dgr; Ip来检测目标气体的湿度。

    Hydrogen sensor
    8.
    发明授权
    Hydrogen sensor 失效
    氢传感器

    公开(公告)号：US07189364B2

    公开(公告)日：2007-03-13

    申请号：US10119901

    申请日：2002-04-11

    申请人： Norihiko Nadanami ,  Tomonori Kondo ,  Masaya Watanabe ,  Ryuji Inoue ,  Noboru Ishida ,  Takafumi Oshima

    发明人： Norihiko Nadanami ,  Tomonori Kondo ,  Masaya Watanabe ,  Ryuji Inoue ,  Noboru Ishida ,  Takafumi Oshima

    IPC分类号： B32B5/02 ,  B32B27/04 ,  B32B27/12 ,  G01N27/00 ,  G01N7/00

    CPC分类号： G01N33/005 ,  G01N27/4074 ,  Y10T436/11 ,  Y10T436/203332 ,  Y10T436/22 ,  Y10T436/25875

    摘要： A hydrogen sensor includes a first electrode 3 and a second electrode 4 provided in contact with a proton conduction layer 2; a gas diffusion controlling portion 6 provided between a measurement gas atmosphere and the first electrode 3; and a support element (1a, 1b) for supporting the proton conduction layer 6, the first electrode 3, the second electrode 4, and the gas diffusion controlling portion 6. Hydrogen contained in a measurement gas introduced via the gas diffusion controlling portion 6 is dissociated, decomposed, or reacted by applying a voltage between the first electrode 3 and the second electrode 4 to thereby generate protons. Hydrogen concentration is obtained on the basis of a limiting current generated as a result of the generated protons being pumped out via the proton conduction layer 2 from the first electrode 3 side of the proton conduction layer to the second electrode 4 side of the proton conduction layer. Hydrogen concentration on the first electrode 2 is controlled to a partial pressure of not less than 10−12 atm, or more preferably, of not less than 3×10−12 atm and of less than 10−2 atm.

    摘要翻译： 氢传感器包括与质子传导层2接触而设置的第一电极3和第二电极4; 设置在测量气体气氛和第一电极3之间的气体扩散控制部分6; 以及用于支撑质子传导层6，第一电极3，第二电极4和气体扩散控制部分6的支撑元件（1a，1b）。 通过气体扩散控制部分6导入的测量气体中所含的氢离子，分解或反应，通过在第一电极3和第二电极4之间施加电压从而产生质子。 基于由生成的质子经由质子传导层2从质子传导层的第一电极3侧向质子传导层的第二电极4侧泵出的限制电流获得氢浓度 。 将第一电极2上的氢浓度控制在不低于大气压的分压，或者更优选不低于3×10 12大气压，以及 小于10-2大气压。

    Gas sensor
    9.
    发明申请
    Gas sensor 审中-公开
    气体传感器

    公开(公告)号：US20060049048A1

    公开(公告)日：2006-03-09

    申请号：US10540561

    申请日：2003-12-25

    申请人： Tomonori Kondo ,  Shoji Kitanoya ,  Norihiko Nadanami ,  Noboru Ishida ,  Takafumi Oshima

    发明人： Tomonori Kondo ,  Shoji Kitanoya ,  Norihiko Nadanami ,  Noboru Ishida ,  Takafumi Oshima

    IPC分类号： G01N27/26

    CPC分类号： G01N27/4074 ,  H01M8/04089 ,  H01M2008/1095

    摘要： A gas sensor capable of reversibly and continuously measuring the concentration of a catalyst poison gas such as CO without specially needing recovering means such as a heater, and measuring the catalyst poison gas concentration without being affected by H2O concentration. The electrical circuit (15) of the gas sensor has an AC power supply (19) for applying an AC voltage between both electrodes (3), (5), an AC voltmeter (21) for measuring an AC voltage (AC effective voltage V) between the both electrodes (3), (5), and an AC ammeter (23) for measuring a current (AC effective current I) running between the both electrodes (3), (5). An impedance is determined from the AC effective voltage V and the AC effective current I generated when the AC voltage is applied to the both electrodes (3), (5). Since this impedance corresponds to the catalyst poison gas concentration, the catalyst poison gas concentration can be determined from the impedance by using a map showing the relation between the impedance and the catalyst poison gas concentration.

    摘要翻译： 一种气体传感器，其能够可靠地连续地测量催化剂毒气如CO的浓度，而不需要诸如加热器的回收装置，并且不受H 2 O 2的影响来测量催化剂毒气浓度 浓度。 气体传感器的电路（15）具有用于在两个电极（3），（5）之间施加交流电压的交流电源（19），用于测量交流电压的交流电压表（AC）（AC有效电压V （3），（5）和用于测量在两个电极（3），（5）之间运行的电流（AC有效电流I）的AC电流表（23）。 根据AC有效电压V和当向两个电极（3），（5）施加AC电压时产生的AC有效电流I）确定阻抗。 由于该阻抗对应于催化剂毒气浓度，所以可以通过使用示出阻抗与催化剂毒气浓度之间的关系的图来从阻抗确定催化剂毒气浓度。

    Gas sensor
    10.
    发明授权
    Gas sensor 有权
    气体传感器

    公开(公告)号：US06635162B2

    公开(公告)日：2003-10-21

    申请号：US09397931

    申请日：1999-09-17

    申请人： Satoshi Sugaya ,  Norihiko Nadanami ,  Noboru Ishida ,  Takafumi Oshima

    发明人： Satoshi Sugaya ,  Norihiko Nadanami ,  Noboru Ishida ,  Takafumi Oshima

    IPC分类号： G01N27407

    CPC分类号： G01N27/417

    摘要： A gas sensor having a laminate structure composed of thin sheets of solid electrolyte and including a cavity portion 21 and an oxygen concentration cell 5. The oxygen concentration in the cavity portion 21 is held constant. The oxygen concentration cell 5 includes an active electrode 12 having a relatively high catalytic capability with respect to NOx or combustible gas and an inner common electrode 13/15 (serving as an inactive electrode and an oxygen-concentration-sensing electrode) having a relatively low catalytic capability with respect to NOx or combustible gas. The oxygen concentration cell 5 is disposed in the gas sensor so as to be exposed to the interior of the cavity portion 21. The concentration of NOx or combustible gas is determined based on an electromotive force (of the order of mV) generated between the active electrode 12 and the inner common electrode 13/15 by a concentration cell effect.

    摘要翻译： 具有由固体电解质薄片构成的层叠结构的气体传感器，包括空腔部21和氧浓度电池5.空腔部21中的氧浓度保持恒定。 氧浓度单元5包括相对于NOx或可燃性气体具有相对较高的催化能力的有源电极12和具有相对低的可燃气体的内部公共电极13/15（用作非活性电极和氧浓度感测电极） 相对于NOx或可燃气体的催化能力。 氧气浓度单元5设置在气体传感器中以暴露于空腔部分21的内部。NOx或可燃气体的浓度基于在活性物质之间产生的电动势（大约mV） 电极12和内部公共电极13/15。