公开(公告)号：EP1014084B1

公开(公告)日：2004-07-28

申请号：EP00104586.3

申请日：1997-05-14

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki

IPC分类号： G01N27/419 ,  G01N27/407

CPC分类号： G01N27/419 ,  G01N27/4074

公开(公告)号：EP1014084A3

公开(公告)日：2000-09-20

申请号：EP00104586.3

申请日：1997-05-14

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki

IPC分类号： G01N27/419 ,  G01N27/407

CPC分类号： G01N27/419 ,  G01N27/4074

摘要： A method for measuring nitrogen oxide (NOx) in a gas by decomposing NOx in the gas and measuring an amount of oxygen generated by the decomposition includes: introducing the gas to a first inner space (2) via a first diffusion resistance (1) connected with an external space, controlling an oxygen partial pressure in an atmosphere in the first inner space to be a predetermined low value at which NO is not decomposed substantially by a main pump means (60), introducing a controlled atmosphere of the first inner space into a second inner space (9) connected with the first inner space via a second diffusion resistance (8), and converting the atmosphere into an electric signal corresponding to the quantity of oxygen generated by decomposition or reduction of NOx contained in the atmosphere by an electric signal conversion means. A first oxygen concentration detecting means (12) is disposed for detecting an oxygen partial pressure in the second inner space, and a control voltage to be applied to the main pump means is adjusted on the basis of an output of the first oxygen concentration detecting means.

摘要翻译： 一种通过分解气体中的NOx并测量由分解产生的氧气量来测量气体中的氮氧化物（NOx）的方法包括：通过连接的第一扩散阻力（1）将气体引入第一内部空间（2） 在外部空间中，将第一内部空间的气氛中的氧分压控制为实质上不被主泵装置（60）分解为NO的预定低值，将第一内部空间的受控气氛引入 通过第二扩散阻力（8）与第一内部空间连接的第二内部空间（9），并且将该气氛转换为与通过电气对包含在大气中的NOx的分解或还原所产生的氧量相对应的电信号 信号转换装置。 第一氧浓度检测装置（12）被设置用于检测第二内部空间中的氧分压，并且基于第一氧浓度检测装置（12）的输出来调整要施加到主泵装置的控制电压 。

公开(公告)号：EP0816835A3

公开(公告)日：2000-01-19

申请号：EP97304664.2

申请日：1997-06-27

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki

IPC分类号： G01N27/407 ,  G01N27/419

CPC分类号： G01N27/407

摘要： Disclosed are a gas sensor and a gas concentration controller each comprising a comparative amplifier (32) for comparing a reference voltage (Vb) with a terminal voltage between a reference electrode (26) and an inner pumping electrode (24a) to obtain a difference therebetween, and amplifying the difference with a predetermined gain to make an output. Wiring connection is arranged so that the output voltage from the comparative amplifier (32) is applied, as a pumping voltage (Vp) to an oxygen pump (22), between the electrode (24a) and an outer pumping electrode (24b). A resistor (Ri) for detecting a pumping current is inserted and connected between an output terminal of the comparative amplifier (32) and the electrode (24b) of the oxygen pump (22). A short circuit is formed between both ends of the resistor (Ri) by using a capacitor (C). One electrode of the capacitor (C) is connected to a non-inverting terminal of a differential amplifier (44), and the other electrode is connected to an inverting terminal of the differential amplifier (44). Accordingly, it is possible to effectively avoid the oscillation phenomenon of the feedback control system for the oxygen pump, and absorb the error in the amount corresponding to voltage drop resulting from the impedance of the oxygen pump.

公开(公告)号：EP0816835A2

公开(公告)日：1998-01-07

申请号：EP97304664.2

申请日：1997-06-27

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki

IPC分类号： G01N27/407

CPC分类号： G01N27/407

摘要： Disclosed are a gas sensor and a gas concentration controller each comprising a comparative amplifier (32) for comparing a reference voltage (Vb) with a terminal voltage between a reference electrode (26) and an inner pumping electrode (24a) to obtain a difference therebetween, and amplifying the difference with a predetermined gain to make an output. Wiring connection is arranged so that the output voltage from the comparative amplifier (32) is applied, as a pumping voltage (Vp) to an oxygen pump (22), between the electrode (24a) and an outer pumping electrode (24b). A resistor (Ri) for detecting a pumping current is inserted and connected between an output terminal of the comparative amplifier (32) and the electrode (24b) of the oxygen pump (22). A short circuit is formed between both ends of the resistor (Ri) by using a capacitor (C). One electrode of the capacitor (C) is connected to a non-inverting terminal of a differential amplifier (44), and the other electrode is connected to an inverting terminal of the differential amplifier (44). Accordingly, it is possible to effectively avoid the oscillation phenomenon of the feedback control system for the oxygen pump, and absorb the error in the amount corresponding to voltage drop resulting from the impedance of the oxygen pump.

摘要翻译： 公开了一种气体传感器和气体浓度控制器，每个气体浓度控制器包括比较放大器（32），用于将参考电压（Vb）与参考电极（26）和内部泵浦电极（24a）之间的端电压进行比较，以获得它们之间的差异 并且以预定的增益放大该差以产生输出。 配线连接被布置成使得来自比较放大器（32）的输出电压作为泵浦电压（Vp）施加到氧气泵（22）之间，在电极（24a）和外部泵浦电极（24b）之间。 用于检测泵浦电流的电阻器（Ri）被插入并连接在比较放大器（32）的输出端子和氧气泵（22）的电极（24b）之间。 通过使用电容器（C）在电阻器（Ri）的两端之间形成短路。 电容器（C）的一个电极连接到差分放大器（44）的同相端子，另一个电极连接到差分放大器（44）的反相端子。 因此，可以有效地避免氧泵的反馈控制系统的振荡现象，并且吸收由于氧气泵的阻抗导致的与电压降相对应的量的误差。

公开(公告)号：EP0769693A1

公开(公告)日：1997-04-23

申请号：EP96307585.8

申请日：1996-10-18

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki ,  Watanabe, Yasushi ,  Murase, Takao

IPC分类号： G01N27/407 ,  G01N33/00 ,  G01N27/419

CPC分类号： G01N27/4074 ,  G01N27/419 ,  G01N33/0014

摘要： Disclosed is a method and a sensing device capable of measuring a predetermined measurement gas component continuously and accurately with good response over a long period of time without being affected by a high oxygen concentration in a measurement gas. The measurement gas is introduced into a first processing zone (6). A first electrochemical pumping cell (4a, 16, 18) is used to lower a partial pressure of oxygen in an atmosphere thereof to a degree sufficient to control a partial pressure of oxygen in a subsequent second processing zone (7). The gas is introduced into the second processing zone (7). Oxygen in an atmosphere is pumped out by using a second electrochemical pumping cell (4c, 28, 30) so that the partial pressure of oxygen in the atmosphere is controlled to have a low value of partial pressure of oxygen which does not substantially affect measurement of an amount of the measurement gas component. The gas is introduced into a third processing zone (8). Oxygen produced by reducing or decomposing the measurement gas component is pumped out by using a third electrochemical pumping cell (4c, 36, 38). The amount of the measurement gas component is determined from a detected value of a pumping current flowing through the third electrochemical pumping cell. The amount of the measurement gas component may be also determined by measuring an electromotive force by using an electrochemical sensor cell, in place of the third electrochemical pumping cell.

摘要翻译： 本发明公开了一种方法和检测装置，其能够在不受测量气体中的高氧浓度的影响的情况下，在长时间内连续且准确地测量预定的测量气体成分而具有良好的响应。 将测量气体引入第一处理区（6）。 第一电化学泵送单元（4a，16,18）用于将氧气在其气氛中的分压降低到足以控制随后的第二处理区（7）中的氧分压。 将气体引入第二处理区（7）。 通过使用第二电化学泵浦单元（4c，28,30）将大气中的氧气抽出，使得大气中的氧分压被控制为具有低的氧分压值，其基本上不影响测量 一定量的测量气体组分。 将气体引入第三处理区（8）。 通过使用第三电化学泵送单元（4c，36,38）将通过还原或分解测量气体组分产生的氧气抽出。 测量气体成分的量根据流过第三电化学泵送单元的泵浦电流的检测值确定。 也可以通过使用电化学传感器单元来代替第三电化学泵送单元来测量电动势来确定测量气体成分的量。

公开(公告)号：EP0769693B1

公开(公告)日：2002-07-03

申请号：EP96307585.8

申请日：1996-10-18

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki ,  Watanabe, Yasushi ,  Murase, Takao

IPC分类号： G01N27/407 ,  G01N33/00 ,  G01N27/419

CPC分类号： G01N27/4074 ,  G01N27/419 ,  G01N33/0014

公开(公告)号：EP0807818A3

公开(公告)日：1997-12-10

申请号：EP97303268.3

申请日：1997-05-14

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki

IPC分类号： G01N27/419 ,  G01N27/407

CPC分类号： G01N27/419 ,  G01N27/4074

摘要： A method for measuring nitrogen oxide (NOx) in a gas by decomposing NOx in the gas and measuring an amount of oxygen generated by the decomposition includes: introducing the gas to a first inner space (2) via a first diffusion resistance (1) connected with an external space, setting the oxygen partial pressure in the first inner space to a predetermined low value at which NO is not decomposed substantially by a main pump means (60), introducing the controlled atmosphere of the first inner space into a second inner space (9) connected with the first inner space via a second diffusion resistance (8), and measuring an electric signal corresponding to the quantity of oxygen generated by decomposition or reduction of NOx contained in the atmosphere. A first oxygen concentration detecting means (12) for detecting the oxygen partial pressure is disposed in the second inner space, and the control voltage applied to the main pump means is adjusted on the basis of the output of the first oxygen concentration detecting means. This has the advantage that the system is much less sensitive to interferrents such as oxygen and steam.

摘要翻译： 一种通过分解气体中的NOx并测量由分解产生的氧气量来测量气体中的氮氧化物（NOx）的方法包括：通过连接的第一扩散阻力（1）将气体引入第一内部空间（2） 在外部空间中，将第一内部空间中的氧分压设定为实质上不被主泵装置（60）分解为NO的预定低值，将第一内部空间的受控气氛引入第二内部空间 （9），其经由第二扩散电阻（8）与第一内部空间连接，并且测量与由大气中包含的NOx的分解或还原所产生的氧量相对应的电信号。 用于检测氧分压的第一氧浓度检测装置（12）设置在第二内部空间中，并且基于第一氧浓度检测装置的输出调节施加到主泵装置的控制电压。 这具有系统对诸如氧气和蒸汽之类的干扰非常不敏感的优点。

公开(公告)号：EP0798557A2

公开(公告)日：1997-10-01

申请号：EP97302000.1

申请日：1997-03-24

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki

IPC分类号： G01N27/419 ,  G01N27/406

CPC分类号： G01N27/4065 ,  G01N27/419

摘要： A gas sensor for measuring a quantity of specific component in a measuring gas includes a main pump means (1) which has an electrochemical pump cell. The electrochemical pump cell includes a solid electrolyte partition (2) exposed to external space, an inner pump electrode (3) and an outer pump electrode (4) formed on the inner surface and outer surface of the solid electrolyte partition, respectively. The main pump means treats oxygen contained in the measuring gas introduced from the outer space by pumping processing on the basis of a control voltage applied between the inner pump electrode and the outer pump electrode. An RLC element (8) which has a specific electric characteristic value corresponding to a characteristic value of the electrochemical pump cell is connected in parallel with the electrochemical pump cell.

摘要翻译： 用于测量气体中测量特定成分的量的气体传感器包括主泵装置（1），其具有电化学泵单元。 电化学泵单元包括暴露于外部的空间内泵电极（3）和至外部泵电极的固体电解质分区（2）（4）形成在固体电解质隔板的内表面和外表面上，分别。 主泵装置包含在由内泵电极和外部泵电极之间施加的控制电压的基础上泵送处理从外部空间引入的测量气体中的氧气对待。 其中有一个特定的电特性值对应于所述电化学泵浦电池的特性值的RLC元件（8）并联连接与电化学泵单元。

公开(公告)号：EP2803989A1

公开(公告)日：2014-11-19

申请号：EP14167731.0

申请日：2014-05-09

申请人： NGK Insulators, Ltd.

发明人： Kato, Kenji ,  Ina, Noriyuki

IPC分类号： G01N27/406 ,  G01N27/417

CPC分类号： G01N27/4065 ,  G01N27/4175

摘要： In a state in which two probes contact each electrode, the contact of the probes with each electrode is checked at the electrode (S100), and a short-circuit test between electrodes is conducted using each one probe from each of pairs of probes where contact has been confirmed (S110, S140). In this manner, since a short-circuit test between electrodes is conducted after it is confirmed that the probes contact each electrode, a short-circuit determination error caused by the fact that the probes are not in contact with each electrode is prevented, thereby improving the reliability of a test.

摘要翻译： 在两个探针接触每个电极的状态下，在电极处检查探针与每个电极的接触（S100），并且使用来自每个接触的探针对中的每个探针进行电极之间的短路测试 已被确认（S110，S140）。 以这种方式，由于在确认探针接触每个电极之后进行电极之间的短路测试，所以防止了由于与每个电极不接触的事实引起的短路确定误差，由此改善 测试的可靠性。

公开(公告)号：EP0816836B1

公开(公告)日：2007-08-15

申请号：EP97304665.9

申请日：1997-06-27

申请人： NGK INSULATORS, LTD.

发明人： Kato, Nobuhide ,  Ina, Noriyuki

IPC分类号： G01N27/407 ,  G01N27/406 ,  G01N27/419

CPC分类号： G01N27/417 ,  G01N27/4071