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    • 12. 发明授权
    • Gas sensor construction, particularly to determine oxygen content
combustion exhaust gases, particularly from internal combustion engines
    • 气体传感器结构,特别是确定氧含量燃烧废气,特别是内燃机
    • US4305803A
    • 1981-12-15
    • US184085
    • 1980-09-04
    • Barbara BeyerHermann DietzKarl Friese
    • Barbara BeyerHermann DietzKarl Friese
    • G01N27/41G01N27/407G01N27/413G01N27/48G01N27/58
    • G01N27/4071
    • To facilitate manufacture of a sensor, particularly a polarographic sensor which has no sealing or heat expansion difficulties and only low heat capacity in the measuring range and electrical connections, a solid electrolyte (17) is formed as a plate extending transversely across a bottom opening (13) of a preferably ceramic tube (11), the plate having two electrodes (16,21) applied to its major sides. The side facing the opening (13) is covered with a ceramic layer (20) having a predetermined diffusion or migration resistance to oxygen molecules. The electrical connections are formed by a conductive track (15) extending on the inside of the ceramic tube, in contact with the sensing electrode on one side of the plate; and a counter head (23) connected to a conductive bolt or pin (24) and resiliently spring pressed against the electrode, and holding the plate (17) and the diffusion barrier (20) thereon in position in the sensor. The test gas is applied to the diffusion resistance layer through a ceramic heat storage plate, for instance, having openings therethrough, which has a film-type heater applied thereto, connected to a current source by conductive tracks (31, 31'; 32, 32') positioned on the outside of the ceramic tube.
    • 为了便于制造传感器,特别是在测量范围和电气连接中没有密封或热膨胀困难并且仅具有低热容量的极谱传感器,固体电解质(17)形成为横向延伸穿过底部开口的板( 13),该板具有应用于其主要侧面的两个电极(16,21)。 面向开口(13)的一侧被对氧分子具有预定的扩散或迁移阻力的陶瓷层(20)覆盖。 电连接由导电轨道(15)形成,导电轨道(15)在陶瓷管的内侧延伸,与板的一侧的感测电极接触; 以及连接到导电螺栓或销(24)并且弹性弹簧压靠在电极上并将板(17)和扩散壁(20)保持在传感器中的适当位置的相对头(23)。 测试气体通过陶瓷储热板(例如具有开口的陶瓷储热板)施加到扩散阻力层,该陶瓷储能板具有施加到其上的膜型加热器,通过导电轨道(31,31'; 32, 32')位于陶瓷管的外侧。
    • 13. 发明授权
    • Sensor element for limiting current sensors to determine the lambda
value of gas mixtures
    • 用于限制电流传感器以确定气体混合物的λ值的传感器元件
    • US5310472A
    • 1994-05-10
    • US700141
    • 1991-05-16
    • Hermann DietzWerner GrunwaldClaudio de la Prieta
    • Hermann DietzWerner GrunwaldClaudio de la Prieta
    • G01N27/41F02D41/14G01N27/406G01N27/407G01N27/416G01N27/419
    • G01N27/4071G01N27/4072
    • Sensor element for limiting current sensors to determine the lambda value of gas mixtures, in particular of exhaust gases of internal combustion engines, having inner and outer pump electrodes disposed on a ceramic substrate, the inner pump electrode of which is accessible for the measurement gas supplied through a diffusion layer acting as a diffusion barrier; having a gas-tight cover layer above the diffusion layer and having conductor tracks for the pump electrodes is described, in which the diffusion layer is adjustable, to calibrate the sensor element. This adjustability is advantageously attained by embodying the side of the diffusion layer 5 oriented toward the measurement gas inlet opening as a zigzag-shaped adjustment zone 8, from which parts can be separated mechanically or by laser cuts. The invention makes comparatively simple calibration of sensor elements possible.
    • PCT No.PCT / DE89 / 00731 Sec。 371日期1991年5月16日 102(e)日期1991年5月16日PCT提交1989年11月17日PCT公布。 公开号WO90 / 06506 日期1990年6月14日。用于限制电流传感器以确定气体混合物,特别是内燃机废气的λ值的传感器元件,其具有设置在陶瓷基板上的内部和外部泵电极,其内部泵浦电极 可用于通过作为扩散阻挡层的扩散层供应的测量气体; 描述了在扩散层上方具有气密性覆盖层并且具有用于泵电极的导体轨迹,其中扩散层是可调节的,以校准传感器元件。 有利地通过将扩散层5的朝向测量气体入口开口的侧面作为锯齿形调整区8来实现,这可以通过机械方式或通过激光切割来分离这些部分。 本发明使得传感器元件的相对简单的校准成为可能。
    • 15. 发明授权
    • Method and circuit arrangement for acutating a measuring sensor to
determine an oxygen concentration in a gas mixture
    • 用于对测量传感器进行补偿以确定气体混合物中的氧气浓度的方法和电路装置
    • US5849175A
    • 1998-12-15
    • US809569
    • 1997-03-24
    • Hermann DietzWerner Gruenwald
    • Hermann DietzWerner Gruenwald
    • G01N27/406G01N27/41G01N27/419
    • G01N27/419G01N27/4065
    • The invention relates to a method and a circuit arrangement for actuating a measuring sensor for determining an oxygen concentration in a gas mixture, particularly in exhaust gases of internal combustion engines, wherein a detector voltage corresponding to the oxygen concentration and supplied by a reference probe is transferred into a pump voltage for a measuring probe by a circuit arrangement. It is provided that a curve of the detector voltage (U.sub.D) is used directly for determining the curve of the pump voltage (U.sub.P), with a first input (38) of the circuit arrangement (36) being connected to a first input (46) of an adder (48) at whose second input (50) an add voltage is applied and whose output (54) is connected to the second input (40) of the circuit arrangement (36) via an amplifier (58).
    • PCT No.PCT / DE95 / 01181 Sec。 371日期1997年3月24日 102(e)1997年3月24日PCT PCT 1995年9月1日PCT公布。 公开号WO96 / 09536 日期:1996年3月28日本发明涉及一种用于致动测量传感器以确定气体混合物,特别是内燃机排气中的氧气浓度的方法和电路装置,其中检测器电压对应于氧浓度并提供 通过参考探头通过电路布置被传送到用于测量探针的泵电压。 提供了检测器电压(UD)的曲线直接用于确定泵电压(UP)的曲线,其中电路装置(36)的第一输入端(38)连接到第一输入端(46) ),其第二输入端(50)施加相加电压,并且其输出端(54)经由放大器(58)连接到电路装置(36)的第二输入端(40)。
    • 16. 发明授权
    • Measuring sensor for determining the oxygen content of gas mixtures
    • 用于测定气体混合物氧含量的测量传感器
    • US5702580A
    • 1997-12-30
    • US617873
    • 1996-03-21
    • Hermann DietzWerner GruenwaldClaudio De La PrietaGert LindemannUlrich EiseleCarmen Schmiedel
    • Hermann DietzWerner GruenwaldClaudio De La PrietaGert LindemannUlrich EiseleCarmen Schmiedel
    • G01N27/41G01N27/417G01N27/419G01N27/407
    • G01N27/417
    • A measuring sensor for determining oxygen content in a gas mixture including exhaust gases of internal combustion engines, includes a base substrate which is comprised of a base material and which is electrically insulating; and an electrochemical measuring probe and an electrochemical reference probe arranged separate from each other on the base substrate. The measuring probe includes at least one internal electrode; at least one solid electrolyte island; and at least one external electrode. The measuring probe additionally includes a diffusion barrier. Further base material layers composed of the base material are provided so as to embed at least the diffusion barrier, the at least one internal electrodes for the measuring probe and the internal electrode for the reference probe. A diffusion hole is defined between the measuring probe and the reference probe which extends from the base substrate through the diffusion barrier and respective base material layers, and out to the gas mixture to be measured. Thermal stress and the accompanying tendency to cracking is reduced by providing the solid electrolyte as islands. Separate disposition of the measuring probe and the reference probe, i.e., without a common electrode, permits construction as individual layers using, for example, screen printing.
    • PCT No.PCT / DE95 / 01305 Sec。 371日期1996年3月21日 102(e)日期1996年3月21日PCT提交1995年9月22日PCT公布。 公开号WO96 / 11394 日期1996年04月18日用于测定包括内燃机废气的气体混合物中的氧含量的测量传感器包括由基材构成并且是电绝缘的基底, 以及在基底基板上彼此分离设置的电化学测量探针和电化学参考探针。 测量探头包括至少一个内部电极; 至少一个固体电解质岛; 和至少一个外部电极。 测量探头还包括扩散阻挡层。 提供由基材构成的其他基材层,以便至少嵌入扩散阻挡层,至少一个用于测量探针的内部电极和用于参考探针的内部电极。 在测量探针和参考探针之间限定了扩散孔,该探针从基底基底通过扩散阻挡层和相应的基底层层延伸出来,并且进入待测量的气体混合物。 通过提供固体电解质作为岛来减少热应力和伴随的开裂倾向。 测量探针和参考探针的单独布置,即没有公共电极,可以使用例如丝网印刷将结构设计为单独的层。