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    • 77. 发明授权
    • Air-fuel ratio sensor and apparatus using the same
    • 空燃比传感器及使用其的装置
    • US4661234A
    • 1987-04-28
    • US812907
    • 1985-12-23
    • Hideaki TakahashiHaruyoshi KondoTakashi TakeuchiKiyoharu Hayakawa
    • Hideaki TakahashiHaruyoshi KondoTakashi TakeuchiKiyoharu Hayakawa
    • G01N27/419G01N27/12G01N27/406G01N27/409G01N27/58
    • G01N27/4065
    • An air-fuel ratio sensor comprising a limiting electric current type oxygen sensor portion, having a sequential stacking on a porous substrate of a first electrode with high gas permeability, a solid electrolytic thin film having a specific crystal orientation, a thickness of 0.1 to 30 .mu.m, and good crystallinity. The limiting electric current type oxygen sensor portion and second electrode with a high gas permeability, is arranged and connected in parallel with a resistive type oxygen sensor portion having interdigital electrodes formed on one or both major surfaces of an oxide semiconductor thin film, the resistance of which changes in accordance with oxygen partial pressure. The air-fuel ratio sensor also has a sensor heater formed on one surface of the porous substrate around the sensor portions. The overall structure of the sensor is coated with a porous ceramic coating to which a catalyst is added.
    • 一种空燃比传感器,包括极限电流型氧传感器部分,其具有顺序堆叠在具有高透气性的第一电极的多孔基底上,具有特定结晶取向的固体电解薄膜,厚度为0.1至30 微米,结晶度好。 具有高透气性的极限电流型氧传感器部分和第二电极被布置和并联连接到具有形成在氧化物半导体薄膜的一个或两个主表面上的交叉指状电极的电阻型氧传感器部分, 其根据氧分压而变化。 空燃比传感器还具有形成在传感器部分周围的多孔基材的一个表面上的传感器加热器。 传感器的整体结构涂覆有添加有催化剂的多孔陶瓷涂层。
    • 78. 发明授权
    • Equipment for detecting oxygen concentration
    • 氧浓度检测设备
    • US4626338A
    • 1986-12-02
    • US373257
    • 1982-04-29
    • Haruyoshi KondoKeiichi SajiTakashi Takeuchi
    • Haruyoshi KondoKeiichi SajiTakashi Takeuchi
    • G01N27/406G01N27/46G01N27/58
    • G01N27/4065
    • This oxygen concentration detector employs an oxygen concentration sensor provided with a plate produced of a material which exhibits ionic conduction for oxygen (An oxygen ionic conductor), a cathode placed on the one surface of the oxygen ionic conductor plate, an anode placed on the other surface of the oxygen ionic conductor plate, and a porous material layer which functions to regulate the flow of oxygen which passes through the porous material layer to reach the cathode and the oxygen ionic conductor plate. The improvement realized in this oxygen concentration detector is to remove a drawback in which the output of this sensor makes an error depending on the temperature of a gas of which the oxygen concentration is measured. This oxygen concentration detector is provided with a limiting electric current type oxygen concentration sensor, a means for applying a voltage to the sensor for the purpose to measure a limiting current flowing in the sensor, a means for measuring a current which flows in the sensor responsive to the application of a voltage to the sensor, a means for measuring the internal resistance of the sensor, and a means for regulating at least one of the foregoing three means including a limiting electric current type oxygen concentration sensor, a means for applying a voltage to the sensor and a means for measuring a current flowing in the sensor, flowing the amount of the internal resistance of the sensor detected by the foregoing means for measuring the internal resistance of the sensor.
    • 该氧浓度检测器采用氧浓度传感器,该氧浓度传感器设置有由氧气离子导电(氧离子导体),放置在氧离子导体板的一个表面上的阴极,另一个阳极 氧离子导体板的表面,以及用于调节通过多孔材料层到达阴极和氧离子导体板的氧气流的多孔材料层。 在该氧浓度检测器中实现的改进是消除了该传感器的输出根据测量氧浓度的气体的温度产生误差的缺点。 该氧浓度检测器设置有限制电流型氧浓度传感器,用于向传感器施加电压用于测量在传感器中流动的极限电流的装置,用于测量在传感器中流动的电流的装置 对传感器施加电压,用于测量传感器的内部电阻的装置,以及用于调节上述三种装置中的至少一种装置的装置,包括限制电流型氧浓度传感器,用于施加电压的装置 传感器和用于测量在传感器中流动的电流的装置,使用上述用于测量传感器内阻的装置检测到的传感器内阻的流量。