公开(公告)号：US06746586B2

公开(公告)日：2004-06-08

申请号：US09917874

申请日：2001-07-31

申请人： Yoshiaki Kuroki ,  Kunio Yanagi ,  Tomohiro Mabuchi ,  Shinya Awano ,  Hiroyuki Hayashi

发明人： Yoshiaki Kuroki ,  Kunio Yanagi ,  Tomohiro Mabuchi ,  Shinya Awano ,  Hiroyuki Hayashi

IPC分类号： G01N27407

CPC分类号： G01N27/4071 ,  G01N27/419

摘要： A multi-layer gas sensor element is described which comprises a solid electrolytic member, a substrate, and a porous member, wherein each of the substrate and the porous member has a thickness larger than that of the solid electrolytic member with respect to a lamination direction; the substrate and the porous member face each other and sandwich the solid electrolytic member; a ceramic component constituting the substrate in the highest volume percent is the same as the ceramic component constituting the porous member in the highest volume percent thereof; and the volume percent (R2) of the ceramic component contained in the porous member is 80% or more the volume percent (R1) of the ceramic component contained in the substrate.

摘要翻译： 描述了一种多层气体传感器元件，其包括固体电解部件，基板和多孔部件，其中，基板和多孔部件的厚度相对于层叠方向具有比固体电解部件的厚度大 ; 基板和多孔构件彼此面对并夹持固体电解构件; 构成最高体积百分比的基板的陶瓷构件与构成多孔构件的最高体积百分比的陶瓷构件相同; 并且包含在多孔构件中的陶瓷成分的体积百分比（R2）为包含在基材中的陶瓷成分的体积百分比（R1）的80％以上。

公开(公告)号：US06936148B2

公开(公告)日：2005-08-30

申请号：US10270292

申请日：2002-10-15

申请人： Tomohiro Mabuchi ,  Yoshiaki Kuroki ,  Shinya Awano ,  Hiroyuki Hayashi ,  Kunio Yanagi

发明人： Tomohiro Mabuchi ,  Yoshiaki Kuroki ,  Shinya Awano ,  Hiroyuki Hayashi ,  Kunio Yanagi

IPC分类号： G01N27/419 ,  G01N27/409 ,  G01N27/41

CPC分类号： G01N27/419 ,  G01N27/4072

摘要： A sensor element including an insulative base (11), a heating resistor (12), an oxygen pump cell (13), an oxygen detection cell (14), and a diffusion-chamber-forming member (161) having a rate-controlling introduction portion (163) and defining a diffusion chamber (16) in cooperation with electrodes (1321, 1421), wherein these components have been subjected to simultaneous firing (i.e., cofiring) to form a unitary sensor element. A partition wall (162), which extends from the diffusion-chamber-forming member and is made of alumina, is joined to a surface of a solid electrolyte (131) between two electrodes (1321, 1322) of an Ip cell. Preferably, a region within 20 μm from the plane of junction joining the partition wall (162) to the solid electrolyte (131) contains no portion whose amount of non-alumina substances exceeds by 2% by mass (by weight) or more the amount of non-alumina substances of the diffusion-chamber-forming member (161).

摘要翻译： 一种传感器元件，包括绝缘基座（11），加热电阻器（12），氧气泵单元（13），氧气检测单元（14）和扩散室形成构件（161） 引入部分（163）并且与电极（1321,1421）协作限定扩散室（16），其中这些部件已经被同时烧制（即共烧）以形成一体的传感器元件。 从扩散室形成部件延伸并由氧化铝制成的分隔壁（162）与Ip电池的两个电极（1321,1322）之间的固体电解质（131）的表面接合。 优选地，从连接分隔壁（162）到固体电解质（131）的接合面的20μm以内的区域不含非氧化铝物质的量超过2质量％（重量）以上的部分， 的扩散室形成部件（161）的非氧化铝物质。

公开(公告)号：US06334946B1

公开(公告)日：2002-01-01

申请号：US09321568

申请日：1999-05-28

申请人： Tomohiro Mabuchi ,  Shigeki Mori ,  Satoshi Teramoto ,  Takeshi Kawai

发明人： Tomohiro Mabuchi ,  Shigeki Mori ,  Satoshi Teramoto ,  Takeshi Kawai

IPC分类号： G01N2741

CPC分类号： G01N27/407

摘要： A method of stabilizing pump current in a gas sensor through suppression of oscillations of the pump current which result from pulsations of measured gas is provided. The gas sensor includes an oxygen pump element, an oxygen concentration cell element and a measurement gap between the oxygen pump element and the oxygen concentration cell element, and is operative to control the pump current through the oxygen pump element so that an output voltage of the oxygen concentration cell element is constant in order that an oxygen concentration in the measurement gap is maintained constant and detect an oxygen concentration in the measured gas on the basis of the pump current. The method comprising adjusting an activity of electrodes of an oxygen pump element so as to change a responsiveness in control of the pump current and thereby reduce an amplitude of the oscillations of the pump current. There is also provided the above described type gas sensor wherein the activity of the electrodes of the oxygen pump element is adjusted so as to change a responsiveness in control of the pump current and thereby reduce the oscillations of the pump current.

摘要翻译： 提供了通过抑制由测量气体的脉动引起的泵浦电流的振荡来稳定气体传感器中的泵电流的方法。 气体传感器包括氧气泵元件，氧浓度电池元件和氧气泵元件和氧浓度电池元件之间的测量间隙，并且可操作以控制通过氧气泵元件的泵浦电流，使得输出电压 氧浓度电池元件是恒定的，以便测量间隙中的氧浓度保持恒定，并且基于泵电流检测测量气体中的氧浓度。 所述方法包括调节氧气泵元件的电极的活性，以便改变控制泵电流的响应性，从而减小泵电流振荡的幅度。 还提供了上述类型的气体传感器，其中氧气泵元件的电极的活性被调节以改变控制泵浦电流的响应性，从而减少泵电流的振荡。