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公开(公告)号：US4661234A
公开(公告)日：1987-04-28
申请号：US812907
申请日：1985-12-23
IPC分类号： G01N27/419 , G01N27/12 , G01N27/406 , G01N27/409 , G01N27/58
CPC分类号： G01N27/4065
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US4595485A
公开(公告)日：1986-06-17
申请号：US775741
申请日：1985-09-13
IPC分类号： G01N27/41 , G01N27/404 , G01N27/406 , G01N27/409 , G01N27/56
CPC分类号： G01N27/4065
摘要： A limiting electric current type oxygen sensor comprising a first electrode of a gas-permeable film, a thin solid electrolyte film which is crystallized along one direction to decrease resistance and which has a thickness falling in the range between 0.1 .mu.m and 30 .mu.m, and a second electrode of a gas-permeable film sequentially formed on an electrically insulating substrate. This limiting electric current type oxygen sensor is also provided with a porous coating layer or a dense coating layer. The porous coating layer made of Al.sub.2 O.sub.3, SiO.sub.2, spinnel, SiC, Si.sub.3 N.sub.4 and etc., has a porosity of not more than 30% and a thickness of not less than 1 .mu.m, and serves as a gas diffusion flow rate-determining portion. The dense coating layer serves to control a gas permeation path such that either the first electrode or the substrate is used as the gas diffusion flow rate-determining portion.
摘要翻译： 一种限制电流型氧传感器，包括透气膜的第一电极，沿一个方向结晶以降低电阻并且具有落在0.1μm至30μm之间的厚度的薄固体电解质膜， 以及依次形成在电绝缘基板上的透气膜的第二电极。 该极限电流型氧传感器还设置有多孔涂层或致密涂层。 由Al2O3，SiO2，尖晶石，SiC，Si3N4等制成的多孔涂层的孔隙率不大于30％，厚度不小于1μm，用作气体扩散流速确定部分 。 致密涂层用于控制气体渗透路径，使得第一电极或基板用作气体扩散流速确定部分。
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3.发明授权Apparatus with polarographic sensor to detect concentrations of plurality of gas components 失效具有极谱法传感器以检测多个气体成分浓度的装置
公开(公告)号：US4576705A
公开(公告)日：1986-03-18
申请号：US613969
申请日：1984-05-24
IPC分类号： G01N27/41 , G01N27/406 , G01N27/48 , G01N33/00
CPC分类号： G01N27/4065
摘要： An apparatus for detecting concentrations of a plurality of gas components has a single polarographic sensor capable of detecting an oxygen concentration and a composite concentration of oxygen gas, carbon dioxide gas and steam. A first voltage is applied to the polarographic sensor which then measures only the oxygen concentration, or a second voltage is applied to the sensor which then measures only the composite concentration of oxygen gas, carbon dioxide gas and steam. The first and second voltages are applied to the sensor in a time division manner. Upon application of first and second voltages in such a time division manner, corresponding currents flowing through the sensor are detected to obtain signals corresponding to the oxygen concentration and the composite concentration of oxygen gas, carbon dioxide gas and steam. The signal corresponding to the oxygen concentration is subtracted by an operational amplifier from the signal corresponding to the composite concentration of oxygen gas, carbon dioxide gas and steam, thereby obtaining a signal representing a composite concentration of carbon dioxide gas and steam.
摘要翻译： 用于检测多个气体组分的浓度的装置具有能够检测氧浓度和氧气，二氧化碳气体和蒸汽的复合浓度的单个极谱传感器。 将第一电压施加到极谱传感器，其然后仅测量氧浓度，或者将第二电压施加到传感器，然后传感器仅测量氧气，二氧化碳气体和蒸汽的复合浓度。 以时分方式将第一和第二电压施加到传感器。 以这种时分方式施加第一和第二电压时，检测流过传感器的对应电流，以获得对应于氧浓度和氧气，二氧化碳气体和蒸汽的复合浓度的信号。 对应于氧浓度的信号由运算放大器从对应于氧气，二氧化碳气体和蒸汽的复合浓度的信号中减去，从而获得表示二氧化碳气体和蒸汽的复合浓度的信号。
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公开(公告)号：US4500412A
公开(公告)日：1985-02-19
申请号：US404900
申请日：1982-08-03
IPC分类号： G01N27/12 , G01N27/407 , G01N27/413 , H05B3/14 , G01N27/58
CPC分类号： G01N27/4071 , G01N27/12
摘要： A sensor which has an insulating substrate on which is formed a heater layer for heating the sensor on a part thereof and which is operated above a predetermined temperature. The heater layer is made of a material which has a thickness of 0.2 .mu.m to 20 .mu.m and which is made of platinum, rhodium, palladium or a mixture thereof. The insulating substrate is made of alumina, quartz, spinel, magnesia, zirconia, or mixtures thereof. A heater protective layer having a thickness of 0.01 .mu.m to 500 .mu.m is made of materials based on alumina, silica, spinel, magnesia, zirconia or mixtures thereof.
摘要翻译： 一种具有绝缘基板的传感器，其上形成有加热器层，用于在其一部分上加热传感器并在预定温度以上运行。 加热器层由厚度为0.2μm至20μm的材料制成，并由铂，铑，钯或其混合物制成。 绝缘基板由氧化铝，石英，尖晶石，氧化镁，氧化锆或其混合物制成。 厚度为0.01μm〜500μm的加热器保护层由基于氧化铝，二氧化硅，尖晶石，氧化镁，氧化锆或其混合物的材料制成。
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公开(公告)号：US4574264A
公开(公告)日：1986-03-04
申请号：US552201
申请日：1983-11-15
摘要： A thin film oxygen sensor with a microheater incorporates an oxide semiconductor and has an integral structure of a sensor portion and a heater portion, wherein a porous catalyst layer is formed on a surface of the sensor portion, and a thickness and an average pore diameter of the catalyst layer are determined such that a ratio of the thickness to the average pore diameter falls within a range of 50 to 3,000. The oxygen sensor has good reproducibility, high stability, and high sensitivity for changing a resistance in response to a change in an oxygen content in an atmosphere. The oxygen sensor can be manufactured at low cost and has a compact construction.
摘要翻译： 具有微加热器的薄膜氧传感器结合有氧化物半导体，并且具有传感器部分和加热器部分的整体结构，其中在传感器部分的表面上形成多孔催化剂层，并且其厚度和平均孔径为 确定催化剂层，使得厚度与平均孔径的比率落在50至3,000的范围内。 氧传感器响应于大气中氧含量的变化而具有良好的再现性，高稳定性和高灵敏度。 氧传感器可以低成本制造，结构紧凑。
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6.发明授权
公开(公告)号：US4510036A
公开(公告)日：1985-04-09
申请号：US457888
申请日：1983-01-14
IPC分类号： G01N27/41 , G01N27/406 , G01N27/409 , G01N27/58
CPC分类号： G01N27/4065
摘要： The invention provides a limiting electric current type oxygen sensor with a microheater, having: an oxygen ionic conductor; an anode and a cathode respectively formed on two major surfaces of the oxygen ionic conductor; an insulating film which has a porosity of not less than 0.2 [%], an average pore diameter of not less than 140 [.ANG.], and a thickness between 0.2 [.mu.m] and 10 [.mu.m], and which is formed on one of the anode and the cathode so as to regulate a flow rate of oxygen gas and to provide electrical insulation; and the microheater formed on the insulating film. The oxygen ionic conductor is electrically insulated from the microheater through the insulating film. The invention also provides a limiting electric current type oxygen concentration detecting device having the limiting electric current type oxygen sensor and a constant temperature control circuit.
摘要翻译： 本发明提供一种具有微加热器的极限电流型氧传感器，具有：氧离子导体; 分别形成在氧离子导体的两个主表面上的阳极和阴极; 绝缘膜的孔隙率不小于0.2 [％]，平均孔径不小于140 [ANGSTROM]，厚度在0.2μm和10μm之间，并且形成在 阳极和阴极之一，以调节氧气的流量并提供电绝缘; 和形成在绝缘膜上的微加热器。 氧离子导体通过绝缘膜与微加热器电绝缘。 本发明还提供一种具有极限电流型氧传感器和恒温控制电路的极限电流型氧浓度检测装置。
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公开(公告)号：US4524264A
公开(公告)日：1985-06-18
申请号：US493698
申请日：1983-05-11
CPC分类号： G05D23/2401 , G05D23/1904
摘要： A temperature control apparatus detects an actual temperature of an object (e.g., sensor) to be controlled, and compares the actual temperature with a preset target temperature to obtain a difference therebetween, thereby keeping a heater temperature constant. The temperature control apparatus has a temperature rise rate limiter for controlling a temperature rise rate of the object to be controlled so as not to exceed a predetermined temperature rise rate. The object may thus not be damaged by thermal strain which results from a high temperature rise rate.
摘要翻译： 温度控制装置检测要控制的物体（例如传感器）的实际温度，并将实际温度与预设目标温度进行比较以获得其间的差值，从而保持加热器温度恒定。 温度控制装置具有温度上升速率限制器，用于控制要控制的物体的升温速率，使其不超过预定的温度上升率。 因此，由于高的升温速率导致的热应变，物体不会受到损伤。
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公开(公告)号：US4626338A
公开(公告)日：1986-12-02
申请号：US373257
申请日：1982-04-29
申请人： Haruyoshi Kondo , Keiichi Saji , Takashi Takeuchi
发明人： Haruyoshi Kondo , Keiichi Saji , Takashi Takeuchi
IPC分类号： G01N27/406 , G01N27/46 , G01N27/58
CPC分类号： G01N27/4065
摘要： 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.
摘要翻译： 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。
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9.发明授权
公开(公告)号：US4472262A
公开(公告)日：1984-09-18
申请号：US381025
申请日：1982-05-24
申请人： Haruyoshi Kondo , Keiichi Saji , Takashi Takeuchi , Yasuhiro Otsuka , Toshinobu Furutani , Mari Okazaki
发明人： Haruyoshi Kondo , Keiichi Saji , Takashi Takeuchi , Yasuhiro Otsuka , Toshinobu Furutani , Mari Okazaki
IPC分类号： G01N27/41 , G01N27/406 , G01N27/409 , G01N27/56 , G01N27/30 , G01N27/58
CPC分类号： G01N27/4065
摘要： An oxygen concentration detector provided with an oxygen concentration sensor further provided with an oxygen ionic conductor, a cathode placed on one surface of the oxygen ionic conductor, an anode placed on the other surface of the oxygen ionic conductor, and a layer convering the cathode for regulating the diffusion of oxygen gas toward the cathode. Temperature compensation is applied to the output of the detector which is inherently influenced by the temperature of the sensor. More specifically, an oxygen concentration detector is provided with the foregoing oxygen concentration sensor, and voltage or current is alternatively supplied to the sensor to measure a limiting current of the sensor and internal resistance of the sensor, and the current or the voltage produced by the foregoing application of voltage or current, and a temperature compensation is applied to the detected magnitude of limiting current according to the internal resistance of the sensor.
摘要翻译： 一种设置有氧浓度传感器的氧浓度检测器，其还设置有氧离子导体，设置在氧离子导体的一个表面上的阴极，放置在氧离子导体的另一表面上的阳极，以及将阴极会聚到 调节氧气向阴极的扩散。 温度补偿被施加到检测器的输出，其本身受到传感器的温度的影响。 更具体地说，氧浓度检测器具有上述氧浓度传感器，并且将电压或电流交替地供应到传感器以测量传感器的限制电流和传感器的内部电阻，以及由该传感器产生的电流或电压 上述施加电压或电流，并且根据传感器的内部电阻对检测到的限制电流的大小进行温度补偿。
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公开(公告)号：US4187486A
公开(公告)日：1980-02-05
申请号：US898372
申请日：1978-04-20
CPC分类号： G01N27/12 , Y10T436/208339
摘要： This invention provides an oxygen concentration detecting element and method of producing the same for use in detecting the oxygen concentration of gases such as exhaust gases from gasoline engines. The oxygen concentration detecting element is characterized by a shaped and sintered porous body consisting essentially of semiconductor materials and platinum particles dispersed at an average particle-to-particle spacing of no more than 10 .mu. throughout said element.The element has high durability and non-hysteresis characteristics, and can be used over a wide temperature range. The element is especially useful in detecting the oxygen concentration of an exhaust gas.
摘要翻译： 本发明提供一种氧浓度检测元件及其制造方法，用于检测来自汽油发动机的废气等气体的氧浓度。 氧浓度检测元件的特征在于一种成形和烧结的多孔体，其基本上由半导体材料和在整个元件上的平均粒子间距不超过10微米分散的铂颗粒组成。 该元件具有高耐久性和非滞后特性，可在宽温度范围内使用。 该元件在检测废气的氧气浓度方面特别有用。
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