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    GAS SENSOR ELECTRODE AND METHOD FOR PRODUCING SAME
    3.
    发明公开
    GAS SENSOR ELECTRODE AND METHOD FOR PRODUCING SAME 审中-公开

    公开(公告)号：EP3421985A1

    公开(公告)日：2019-01-02

    申请号：EP17756559.5

    申请日：2017-02-22

    申请人： Tanaka Kikinzoku Kogyo K.K.

    发明人： OKAMOTO Nobuhisa ,  HOSOI Takuya ,  AKIYAMA Nobuyuki

    IPC分类号： G01N27/409 ,  G01N27/41

    摘要： The present invention aims at providing an electrode having more sufficient electrode activity and electrical conductivity as a sensor electrode for various gas sensors than conventional sensor electrodes. The present invention relates to a gas sensor electrode including a platinum-containing layer having mixed and dispersed therein a conductive particle phase composed of Pt or a Pt alloy and a ceramic particle phase, and a ceramic layer containing a ceramic material, wherein the platinum-containing layer and the ceramic layer are porous, and the porosity of the ceramic layer as measured by image analysis of a cross-sectional SEM appearance is from 1 to 40% and the average pore size of the ceramic layer is from 0.1 to 5 µm.

    SENSOR ELECTRODE
    6.
    发明公开
    SENSOR ELECTRODE 审中-公开
    传感器电极

    公开(公告)号：EP3182110A1

    公开(公告)日：2017-06-21

    申请号：EP17153951.3

    申请日：2013-09-17

    申请人： Tanaka Kikinzoku Kogyo K.K.

    发明人： OKAMOTO, Nobuhisa ,  HOSOI, Takuya ,  SAKAIRI, Koichi

    IPC分类号： G01N27/409 ,  G01N27/41 ,  G01N27/419 ,  H01B1/00 ,  H01B1/20 ,  H01B13/00 ,  G01N27/407 ,  C09D5/24 ,  H01B1/22

    摘要： A gas sensor electrode including a conductive particle phase made of Pt or Pt alloy and a ceramic particle phase being mixed and dispersed, wherein a rate of content of the ceramic particle phase is 6.0 to 22.0 mass%, and a void ratio is 2.5 to 10.0%, and a dispersion degree of the conductive particle phase per length of 25 µm on the electrode surface is 0.60 to 0.85 µm, and a dispersion degree of the conductive particle phase in the electrode cross section per length of 100 µm in a direction parallel to the electrode surface is 2.0 to 4.0 µm.

    摘要翻译： 一种气体传感器用电极，其特征在于，包含由Pt或Pt合金构成的导电性粒子相和陶瓷粒子相混合分散而成的气体传感器用电极，其中，所述陶瓷粒子相的含量比例为6.0〜22.0质量％，空隙率为2.5〜10.0 ％，并且电极表面上的每单位长度25μm的导电性粒子相的分散度为0.60〜0.85μm，单位长度的电极截面中的导电性粒子相的平均分散度为100μm 电极表面为2.0至4.0μm。

    GAS SENSOR CONTROL DEVICE
    8.
    发明公开
    GAS SENSOR CONTROL DEVICE 有权
    气体传感器控制设备

    公开(公告)号：EP3006930A4

    公开(公告)日：2017-02-22

    申请号：EP14807068

    申请日：2014-06-04

    申请人： DENSO CORP

    发明人： AKIMOTO KATSUHIDE ,  NAKANO SHUUICHI ,  FUKUDA YUSHI ,  FUJII TOMOFUMI ,  MASUKO TAKAHITO ,  KUMAZAKI TOSHIHIDE

    IPC分类号： F02D41/22 ,  G01N27/26 ,  G01N27/41

    CPC分类号： G01N27/4163 ,  F02D41/1454 ,  F02D41/222 ,  G01N27/4065 ,  G01N27/41 ,  G01N27/4175 ,  Y02T10/40

    摘要： A sensor element 10 of an A/F sensor AS has a solid electrolyte layer 11, a first electrode 15 arranged on one side of the solid electrolyte layer 11 so as to be exposed to the exhaust gas of an internal combustion engine, and a second electrode 16 arranged on the other side of the solid electrolyte layer 11 so as to face an atmospheric air chamber 18. The sensor element 10 generates a sensor output according to the oxygen concentration in the exhaust gas. A microcomputer 20 supplies oxygen to the first electrode 15 side from the second electrode 16 side via the solid electrolyte layer 11 by applying a predetermined voltage between the pair of electrodes 15 and 16 of the sensor element 10. Moreover, the microcomputer 20 determines a crack abnormality of the solid electrolyte layer 11 based on electric current between the pair of electrodes 15 and 16 which is generated with start of the oxygen supply.

    SENSOR CONTROL DEVICE AND SENSOR CONTROL METHOD
    10.
    发明公开
    SENSOR CONTROL DEVICE AND SENSOR CONTROL METHOD 有权
    传感器控制设备和传感器控制方法

    公开(公告)号：EP2461158A4

    公开(公告)日：2016-10-26

    申请号：EP10823176

    申请日：2010-10-06

    申请人： NGK SPARK PLUG CO

    发明人： YAZAWA KATSUNORI ,  KIMOTO YUJI

    IPC分类号： G01N27/26 ,  G01N27/12 ,  G01N27/409 ,  G01N27/41 ,  G01N27/416 ,  G01R31/08

    CPC分类号： G01N33/0037 ,  G01N27/419 ,  G01N33/007 ,  G01R31/2829 ,  Y02A50/245

    摘要： An object is to perform accurate diagnosis of a failure in which an input signal from an amplification circuit assumes an anomalous value in an intermediate range between GND and Vcc. When at least one of a first NO x concentration Ip2W based on the output OP1 of a first differential amplification circuit 210 and a second NO x concentration Ip2N based on the output OP2 of a second differential amplification circuit 220 falls within an anomaly diagnosis range ZN, the difference D between the first NO x concentration Ip2W and the second NO x concentration Ip2N is obtained, and the difference D is stored in a difference accumulation buffer BF such that 16 values of the difference D continuously sampled up to the present are stored. The integrated value (difference integral value) Dint of the difference D is obtained. When the difference integrated value Dint becomes equal to or greater than a predetermined value Di0, a diagnosis result of "anomalous" is provided.