Electro-chemical measuring sensor with a potential-free sensor element
and method for producing it
    11.
    发明授权
    Electro-chemical measuring sensor with a potential-free sensor element and method for producing it 失效
    具有无电位传感器元件的电化学测量传感器及其制造方法

    公开(公告)号:US5670032A

    公开(公告)日:1997-09-23

    申请号:US592381

    申请日:1996-01-25

    CPC分类号: G01N27/407 G01N27/4078

    摘要: An electro-chemical measuring sensor (10) for determining the oxygen content of gases, in particular for determining the oxygen content in exhaust gases of internal combustion engines, with a potential-free disposed sensor element (14). The sensor element (14) has an oxygen-ion-conducting solid electrolyte body (23), preferably in the shape of a pipe or tube closed at one end, which has an exterior electrode (25) disposed on the exterior surface with a strip conductor (27) on the side toward the contact and also extending on the exterior surface, and which is inserted by means of a sealing ring (20) in a metal housing (11). The sensor element (14) has an electrically insulating layer (21) at least in the area of the sealing ring (20), which covers at least the strip conductor (27) in the direction toward the housing (11). The insulating layer (21) is formed from a mixture of a crystalline, non-metallic material and a glass-forming material. In the course of production the insulating layer (21) is subjected to a thermal treatment above the melting temperature of the glass-forming material, in the course of which the insulating layer (21) forms a glaze filled with the crystalline, non-metallic material.

    摘要翻译: PCT No.PCT / DE94 / 00791 Sec。 371日期:1996年1月25日 102(e)日期1996年1月25日PCT 1994年7月9日PCT公布。 公开号WO95 / 04273 日期1995年2月9日,一种用于确定气体氧含量的电化学测量传感器(10),特别是用于确定内燃机排气中氧含量的电化学测量传感器(10)。 传感器元件(14)具有氧离子传导固体电解质体(23),优选地为在一端封闭的管或管的形状,其具有设置在外表面上的外部电极(25) 导体(27),并且还在外表面上延伸,并且通过密封环(20)插入到金属外壳(11)中。 传感器元件(14)至少在密封环(20)的区域中具有电绝缘层(21),其至少在朝向壳体(11)的方向上覆盖带状导体(27)。 绝缘层(21)由结晶,非金属材料和玻璃形成材料的混合物形成。 在制造过程中,将绝缘层(21)进行高于玻璃形成材料的熔化温度的热处理,其中绝缘层(21)形成填充有结晶非金属的釉料 材料。

    Electrochemical measuring probe
    12.
    发明授权
    Electrochemical measuring probe 失效
    电化学测量探头

    公开(公告)号:US5486279A

    公开(公告)日:1996-01-23

    申请号:US227568

    申请日:1994-04-14

    IPC分类号: G01N27/407

    CPC分类号: G01N27/4075 G01N27/4077

    摘要: An electrochemical measuring probe for determining the oxygen content of gases, in particular of exhaust gases of internal combustion engines, whose measuring probe body consists essentially of a solid electrolyte, for example stabilised ZrO.sub.2 and whose electrode exposed to the gas to be measured is a cermet electrode which is coated with a finely porous ion-conducting covering layer composed of an ion-conducting supporting matrix material having no sintering activity of the type standard for cermet electrodes the covering layer is covered by a porous protective layer. The ion-conducting porous covering layer appreciably increases the activity of the cermet electrode.

    摘要翻译: 用于确定气体,特别是内燃机废气的氧含量的电化学测量探针,其测量探针主体基本上由固体电解质组成,例如稳定的ZrO 2,并且其暴露于待测气体的电极是金属陶瓷 涂覆有不含金属陶瓷电极类型标准物的烧结活性的离子传导性支撑基体材料的细孔离子传导性覆盖层的电极覆盖层被多孔保护层覆盖。 离子导电多孔覆盖层显着提高了金属陶瓷电极的活性。

    Exhaust gas sensor and method of producing the same
    13.
    发明授权
    Exhaust gas sensor and method of producing the same 失效
    废气传感器及其制造方法

    公开(公告)号:US5423973A

    公开(公告)日:1995-06-13

    申请号:US211083

    申请日:1994-06-20

    CPC分类号: G01N27/4075

    摘要: An exhaust gas sensor which is exposed to exhaust gas, includes a measuring electrode; and a porous ceramic coating provided on the measuring electrode and comprised of at least two layers, a first porous ceramic layer which is provided on the measuring electrode and at least a second porous ceramic layer which is provided on the first porous ceramic layer and which is directly exposed to the exhaust gas, wherein the first porous ceramic layer contains getter substances for removal of substances that are harmful to the measuring electrode, and wherein the second porous ceramic layer is provided with one of a diffusion resistance or a catalytic effect relative to exhaust gas constituents such that, at the boundary of the first and second porous ceramic layers, a gas composition is present in use which is comprised of one of oxidizable or reducible gas constituents and which sets a control position for the exhaust gas sensor.

    摘要翻译: PCT No.PCT / DE92 / 00714 Sec。 371日期:1994年6月20日 102(e)日期1994年6月20日PCT提交1992年8月27日PCT公布。 公开号WO93 / 06472 日本1997年4月1日。一种暴露于废气的排气传感器,包括测量电极; 以及设置在所述测量电极上并且包括至少两层的多孔陶瓷涂层,设置在所述测量电极上的第一多孔陶瓷层和设置在所述第一多孔陶瓷层上的至少第二多孔陶瓷层, 直接暴露于废气中,其中第一多孔陶瓷层含有用于除去对测量电极有害的物质的吸气剂物质,并且其中第二多孔陶瓷层具有相对于排气的扩散阻力或催化作用之一 气体成分,使得在第一和第二多孔陶瓷层的边界处,存在使用中的气体组合物,其由可氧化或可还原的气体成分之一组成,并且设置用于排气传感器的控制位置。

    Gas sensor
    14.
    发明授权
    Gas sensor 失效
    气体传感器

    公开(公告)号:US06613206B1

    公开(公告)日:2003-09-02

    申请号:US09308078

    申请日:1999-07-14

    IPC分类号: G01N27407

    CPC分类号: G01N27/407

    摘要: A gas sensor, in particular a lambda probe, for ascertaining the pollutant and/or oxygen content in emission gases of internal combustion engines, having a housing accommodating at least one sensor element, the sensor element having a section on the terminal side and a section on the measuring-gas side, and having a connecting element that connects the sensor element, which has a plurality of electrically conductive contact areas, at its terminal-side section to a plurality of electrically conductive supply leads. The gas sensor has the feature of a connecting element which is formed from a spring element produced in one piece from ceramic material.

    摘要翻译: 一种气体传感器,特别是λ探测器,用于确定内燃机的排放气体中的污染物和/或氧含量,其具有容纳至少一个传感器元件的壳体,该传感器元件在终端侧具有一部分, 在测量气体侧,并且具有将其端子侧部分具有多个导电接触区域的传感器元件连接到多个导电供应引线的连接元件。 气体传感器具有由陶瓷材料一体制成的弹簧元件形成的连接元件的特征。

    Measuring sensor and method for its fabrication
    15.
    发明授权
    Measuring sensor and method for its fabrication 失效
    测量传感器及其制造方法

    公开(公告)号:US06347543B1

    公开(公告)日:2002-02-19

    申请号:US09434667

    申请日:1999-11-05

    IPC分类号: G01N2704

    摘要: A measuring sensor, in particular, for determining the oxygen content in exhaust gases of internal combustion engines, includes a ceramic molding arranged in a metal housing for the accommodation of a sensor element, in particular, planar, the sensor element being sealed by a seal element made of warm-deformable temperature-resistant material. The molded housing is designed in one piece and has a cylindrically shaped longitudinal hole on the connector side, around the sensor element, and the seal element is compressed between a first compressing element on the measuring-gas side and a second compressing element on the connector side, such that it tightly encloses the sensor element and hermetically seals the sensor element with respect to the molded housing.

    摘要翻译: 特别地,用于确定内燃机排气中的氧含量的测量传感器包括布置在金属壳体中用于容纳传感器元件,特别是平面的陶瓷模制件,传感器元件由密封件 元件由耐温变形的耐温材料制成。 模制壳体被设计成一体并且在连接器侧上具有围绕传感器元件的圆柱形纵向孔,并且密封元件在测量气体侧的第一压缩元件和连接器上的第二压缩元件之间被压缩 使得其紧密地包围传感器元件并相对于模制壳体气密地密封传感器元件。

    Sealing element for a sensor
    16.
    发明授权
    Sealing element for a sensor 失效
    用于传感器的密封元件

    公开(公告)号:US6096181A

    公开(公告)日:2000-08-01

    申请号:US91198

    申请日:1998-06-10

    IPC分类号: G01N27/409 G01N27/407

    摘要: An electrochemical sensor for determining the oxygen content of gases of internal combustion engines includes a ceramic element that is inserted with a sealing ring into a housing. The sealing ring is built up from different metal layers. The arrangement of the metal layers proceeds from a metal support which is composed of a steel alloy. The sealing ring is covered on both sides with a roll-clad copper layer. A nickel layer can additionally be arranged beneath the copper layer.

    摘要翻译: PCT No.PCT / DE97 / 02197 Sec。 371日期1999年1月6日 102(e)1999年1月6日PCT PCT 1997年9月26日PCT公布。 公开号WO98 / 15820PC 日期1998年04月16日用于确定内燃机气体的氧含量的电化学传感器包括一个陶瓷元件,其中密封环插入壳体中。 密封环由不同的金属层构成。 金属层的布置从由钢合金构成的金属支撑体进行。 密封圈两侧均覆盖有卷绕铜层。 镍层可另外设置在铜层的下方。

    Device for Determining the Concentration of a Component in a Gas Mixture
    17.
    发明申请
    Device for Determining the Concentration of a Component in a Gas Mixture 审中-公开
    用于确定气体混合物中组分浓度的装置

    公开(公告)号:US20090038941A1

    公开(公告)日:2009-02-12

    申请号:US11632142

    申请日:2005-06-23

    摘要: In an apparatus that ascertains a concentration of a component in a gas mixture, the apparatus includes: a gas measurement chamber, in which the concentration of the component is adjustable against an influence of an interface, acting across a diffusion barrier, with the concentration in the gas mixture, whereby the influence of the interface is compensated for by a controllable current of ions of the component by way of a solid electrolyte, which is charged with a controllable pumping voltage, serves as a pumping mechanism, and is located between the gas measurement chamber and the gas mixture, so that a parameter that characterizes a current constitutes a measurement for the concentration in the gas mixture, whereby the solid electrolyte is at least periodically charged with a specified constant pumping voltage as a function of at least one state parameter of the gas mixture.

    摘要翻译: 在确定气体混合物中组分浓度的装置中,该装置包括:气体测量室,其中组分的浓度可以相对于界面的影响而调节,作用在扩散阻挡层上,浓度在 气体混合物,由此通过可控的泵送电压的固体电解质通过可控电流的组分的离子来补偿界面的影响,其用作泵送机构,并且位于气体之间 测量室和气体混合物,使得表征电流的参数构成气体混合物中的浓度的测量值,由此固体电解质至少周期性地以指定的恒定泵浦电压作为至少一个状态参数的函数 的气体混合物。

    Method of protecting catalytic converters for exhaust gas purification
and heat tone sensor for implementing the method
    18.
    发明授权
    Method of protecting catalytic converters for exhaust gas purification and heat tone sensor for implementing the method 失效
    保护废气净化用催化转化器和实现该方法的热色调传感器的方法

    公开(公告)号:US5473304A

    公开(公告)日:1995-12-05

    申请号:US971904

    申请日:1992-12-28

    摘要: A method is disclosed for the protection of catalytic converters for exhaust gas purification by measuring the temperature with a heat tone sensor suitable particularly for the implementation of the method, wherein a heat tone sensor composed of at least two NTC or PTC resistors and provided with a coating of a catalytically active material on the sensor in the region of at least one of these resistors is arranged ahead of the catalytic converter in the exhaust gas stream or a part thereof, with the catalytically active material initiating the same exothermal reactions as they take place in the catalytic converter employed for the exhaust gas purification. If the resistor is overheated due to an overly intensive exothermal reaction, resulting in a change in resistance, the heat tone sensor detects the drop in the throughput rate of the catalytic converter.

    摘要翻译: PCT No.PCT / DE91 / 00447 Sec。 371日期1992年12月28日 102(e)日期1992年12月28日PCT提交1993年5月8日PCT公布。 出版物WO92 / 1992年1月9日公开了一种用于通过用于实施该方法的热色调传感器测量温度来保护用于废气净化的催化转化器的方法,其中由至少两个NTC组成的热音传感器 或PTC电阻器并且在这些电阻器中的至少一个的区域中在传感器上提供催化活性材料的涂层布置在排气流或其一部分中的催化转化器之前,催化活性材料起始于 在用于废气净化的催化转化器中发生相同的放热反应。 如果由于过度强烈的放热反应导致电阻器过热,导致电阻变化,则热调传感器检测催化转化器的生产率下降。

    Method and apparatus to measure the operating temperature of solid
electrolyte-type gas sensors
    20.
    发明授权
    Method and apparatus to measure the operating temperature of solid electrolyte-type gas sensors 失效
    测量固体电解质型气体传感器工作温度的方法和装置

    公开(公告)号:US4419190A

    公开(公告)日:1983-12-06

    申请号:US357803

    申请日:1982-03-12

    摘要: To provide for temperature measurement of a solid electrolyte polarographic gas composition sensor, an ac signal is superimposed from an ac voltage source (2) on the applied voltage from a voltage source (1) if the sensor is a polarographic sensor, the ac signal being separated from the output by a filter combination (6, 7), the dc output being evaluated as usual, and the ac output being rectified in a rectifier (9) to obtain a measure of the temperature since the ac resistance (R.sub.alt) is highly temperature dependent (see FIG. 3). The ac preferably is about 10% of the applied dc voltage, so that the voltage swing of the ac potential falls well within the linear range of output current with respect to voltage (see FIG. 2). The output from the ac channel (7, 9) to evaluate the temperature signal can be connected to a control loop circuit (10, 11), including a heater (11) to heat the sensor to maintain a uniform temperature thereof.

    摘要翻译: 为了提供固体电解质极谱气体组成传感器的温度测量,如果传感器是极谱传感器,则交流电信号从交流电压源(2)叠加在来自电压源(1)的施加电压上,交流信号为 通过滤波器组合(6,7)从输出分离,直流输出按照常规进行评估,并且交流输出在整流器(9)中整流以获得由于交流电阻(Ralt)高的温度的测量 温度依赖(参见图3)。 交流电压优选为所施加的直流电压的约10%,使得交流电位的电压摆幅相对于电压在输出电流的线性范围内很好地下降(见图2)。 来自用于评估温度信号的交流通道(7,9)的输出可以连接到包括加热器(11)的控制回路电路(10,11),以加热传感器以保持其均匀的温度。