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公开(公告)号：US20060049048A1
公开(公告)日：2006-03-09
申请号：US10540561
申请日：2003-12-25
IPC分类号： G01N27/26
CPC分类号： G01N27/4074 , H01M8/04089 , H01M2008/1095
摘要： A gas sensor capable of reversibly and continuously measuring the concentration of a catalyst poison gas such as CO without specially needing recovering means such as a heater, and measuring the catalyst poison gas concentration without being affected by H2O concentration. The electrical circuit (15) of the gas sensor has an AC power supply (19) for applying an AC voltage between both electrodes (3), (5), an AC voltmeter (21) for measuring an AC voltage (AC effective voltage V) between the both electrodes (3), (5), and an AC ammeter (23) for measuring a current (AC effective current I) running between the both electrodes (3), (5). An impedance is determined from the AC effective voltage V and the AC effective current I generated when the AC voltage is applied to the both electrodes (3), (5). Since this impedance corresponds to the catalyst poison gas concentration, the catalyst poison gas concentration can be determined from the impedance by using a map showing the relation between the impedance and the catalyst poison gas concentration.
摘要翻译： 一种气体传感器，其能够可靠地连续地测量催化剂毒气如CO的浓度，而不需要诸如加热器的回收装置，并且不受H 2 O 2的影响来测量催化剂毒气浓度 浓度。 气体传感器的电路（15）具有用于在两个电极（3），（5）之间施加交流电压的交流电源（19），用于测量交流电压的交流电压表（AC）（AC有效电压V （3），（5）和用于测量在两个电极（3），（5）之间运行的电流（AC有效电流I）的AC电流表（23）。 根据AC有效电压V和当向两个电极（3），（5）施加AC电压时产生的AC有效电流I）确定阻抗。 由于该阻抗对应于催化剂毒气浓度，所以可以通过使用示出阻抗与催化剂毒气浓度之间的关系的图来从阻抗确定催化剂毒气浓度。
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公开(公告)号：US06913677B2
公开(公告)日：2005-07-05
申请号：US10242403
申请日：2002-09-13
IPC分类号： G01N27/416 , G01N27/407 , G01N33/00 , H01M8/04 , H01M8/10
CPC分类号： G01N27/4074 , G01N33/005
摘要： A hydrogen gas sensor is configured such that an O-ring 21 is disposed within a measurement chamber 11a in order to seal against a first support element 9a and against a proton conduction layer 1. This O-ring 21 assumes the form of a rectangular frame that surrounds a first electrode 3, and a substantially circular cross section, and is elastic, heat resistant, and durable. A first metal plate 23a and a second metal plate 23b are disposed from the outside on opposite support elements 9a and 9b, respectively. The hydrogen gas sensor of the present embodiment has a pair of right-hand and left-hand through-holes 29 formed therein so as to extend along the thickness direction thereof. Bolts 31 are inserted into the corresponding through-holes 29. By fastening the metal plates 23a and 23b from the outside by means of the bolts 31 and nuts 33, the opposite support elements 9a and 9b are fastened, thereby clamping the entire hydrogen sensor in a unitary condition.
摘要翻译： 氢气传感器被配置为使得O形环21设置在测量室11a内以便密封第一支撑元件9a并抵靠质子传导层1.该O形环21呈现为 围绕第一电极3的矩形框架和基本圆形的横截面，并且是弹性的，耐热的和耐用的。 第一金属板23a和第二金属板23b分别从外部设置在相对的支撑元件9a和9b上。 本实施方式的氢气传感器具有沿其厚度方向延伸的一对形成在其中的右侧和左侧通孔29。 螺栓31插入对应的通孔29.通过螺栓31和螺母33从外部紧固金属板23a和23b，将相对的支撑元件9a和9b紧固，从而将 整个氢传感器处于一体状态。
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公开(公告)号：US06764582B2
公开(公告)日：2004-07-20
申请号：US10290162
申请日：2002-11-08
IPC分类号： G01N27407
CPC分类号： G01N27/4074 , G01N33/005
摘要： A gas sensor suitable for measuring hydrogen concentration, including a proton conductive layer (1); a first electrode (3) and a second electrode (5) provided on the proton conductive layer (1); a gas diffusion-limiting inlet (19) provided between the first electrode (3) and a measurement gas atmosphere (6) containing hydrogen gas; and a gas diffusion-limiting outlet (21) provided between the second electrode (5) and the atmosphere (6); wherein the ratio (a/b) between the diffusion resistance (a) of the diffusion limiting portion (19) and the diffusion resistance (b) of the gas outlet portion (21) is not greater than 2.
摘要翻译： 适用于测量氢浓度的气体传感器，包括质子传导层（1）; 设置在质子传导层（1）上的第一电极（3）和第二电极（5）。 设置在第一电极（3）和含有氢气的测量气体气氛（6）之间的气体扩散限制入口（19） 和设置在第二电极（5）和大气（6）之间的气体扩散限制出口（21）。 其中所述扩散限制部分（19）的扩散阻力（a）与所述气体出口部分（21）的扩散阻力（b）之比（a / b）不大于2。
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公开(公告)号：US07306712B2
公开(公告)日：2007-12-11
申请号：US10144835
申请日：2002-05-15
申请人： Masaya Watanabe , Norihiko Nadanami , Tomonori Kondo , Ryuji Inoue , Takafumi Oshima , Noboru Ishida
发明人： Masaya Watanabe , Norihiko Nadanami , Tomonori Kondo , Ryuji Inoue , Takafumi Oshima , Noboru Ishida
IPC分类号： G01N27/407
CPC分类号： G01N33/005 , G01N27/4074 , G01N33/006
摘要： This invention provides a gas sensor including a proton-conductive polymer electrolyte layer and a method for measuring gas concentration, that are capable of measuring gas concentration at high accuracy notwithstanding the presence of water vapor.
摘要翻译： 本发明提供了一种气体传感器，其包括质子传导性聚合物电解质层和气体浓度测量方法，尽管存在水蒸气，但能够高精度地测量气体浓度。
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公开(公告)号：US07189364B2
公开(公告)日：2007-03-13
申请号：US10119901
申请日：2002-04-11
申请人： Norihiko Nadanami , Tomonori Kondo , Masaya Watanabe , Ryuji Inoue , Noboru Ishida , Takafumi Oshima
发明人： Norihiko Nadanami , Tomonori Kondo , Masaya Watanabe , Ryuji Inoue , Noboru Ishida , Takafumi Oshima
CPC分类号： G01N33/005 , G01N27/4074 , Y10T436/11 , Y10T436/203332 , Y10T436/22 , Y10T436/25875
摘要： A hydrogen sensor includes a first electrode 3 and a second electrode 4 provided in contact with a proton conduction layer 2; a gas diffusion controlling portion 6 provided between a measurement gas atmosphere and the first electrode 3; and a support element (1a, 1b) for supporting the proton conduction layer 6, the first electrode 3, the second electrode 4, and the gas diffusion controlling portion 6. Hydrogen contained in a measurement gas introduced via the gas diffusion controlling portion 6 is dissociated, decomposed, or reacted by applying a voltage between the first electrode 3 and the second electrode 4 to thereby generate protons. Hydrogen concentration is obtained on the basis of a limiting current generated as a result of the generated protons being pumped out via the proton conduction layer 2 from the first electrode 3 side of the proton conduction layer to the second electrode 4 side of the proton conduction layer. Hydrogen concentration on the first electrode 2 is controlled to a partial pressure of not less than 10−12 atm, or more preferably, of not less than 3×10−12 atm and of less than 10−2 atm.
摘要翻译： 氢传感器包括与质子传导层2接触而设置的第一电极3和第二电极4; 设置在测量气体气氛和第一电极3之间的气体扩散控制部分6; 以及用于支撑质子传导层6，第一电极3，第二电极4和气体扩散控制部分6的支撑元件（1a，1b）。 通过气体扩散控制部分6导入的测量气体中所含的氢离子，分解或反应，通过在第一电极3和第二电极4之间施加电压从而产生质子。 基于由生成的质子经由质子传导层2从质子传导层的第一电极3侧向质子传导层的第二电极4侧泵出的限制电流获得氢浓度 。 将第一电极2上的氢浓度控制在不低于大气压的分压，或者更优选不低于3×10 12大气压，以及 小于10-2大气压。
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公开(公告)号：US06797151B2
公开(公告)日：2004-09-28
申请号：US10035248
申请日：2002-01-04
IPC分类号： G01N27407
CPC分类号： G01N27/4074 , G01N33/004
摘要： A CO sensor and a CO-concentration measurement method which enables accurate measurement of CO concentration irrespective of the hydrogen concentration of a gas under measurement. By applying a first predetermined voltage between first and second electrodes 7 and 8, hydrogen contained in a gas under measurement which has been introduced into a first measurement space 2 via a first diffusion-controlling section 1 dissociates, decomposes, or reacts with another element to generate protons. The thus-generated protons are transported from the first electrode 7 to the second electrode 8 via a first proton-conductive layer 5 or protons are transported from the second electrode 8 to the first electrode 7 via the first proton-conductive layer 5 (when the hydrogen concentration of the measurement gas is extremely low), so that the hydrogen concentration within the first measurement space 2 is controlled to a constant level. The gas under measurement having a controlled hydrogen concentration is introduced into a second measurement space 4 via a second diffusion-controlling section 3, and a second predetermined voltage is applied between third and fourth electrodes 9 and 10. The CO concentration of the gas under measurement is obtained based on current (a limiting proton current) which flows between the third and fourth electrodes 9 and 10. Alternatively, the CO concentration of the gas under measurement is obtained from electromotive force generated between the third and fourth electrodes 9 and 10.
摘要翻译： 一种CO传感器和CO浓度测量方法，其能够精确测量CO浓度，而与测量的气体的氢浓度无关。 通过在第一和第二电极7和8之间施加第一预定电压，通过第一扩散控制部分1被引入到第一测量空间2中的测量气体中所含的氢离子，分解或与其它元件反应 产生质子。 由此产生的质子经由第一质子传导层5从第一电极7传送到第二电极8，或者质子经由第一质子传导层5从第二电极8输送到第一电极7（当 测量气体的氢浓度极低），使得第一测量空间2内的氢浓度被控制在一定水平。 具有受控氢浓度的测量气体经由第二扩散控制部分3引入第二测量空间4，并且在第三和第四电极9和10之间施加第二预定电压。测量气体的CO浓度 基于在第三和第四电极9和10之间流动的电流（限制质子电流）获得。或者，测量气体的CO浓度是从第三和第四电极9和10之间产生的电动势获得的。
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公开(公告)号：US06652723B1
公开(公告)日：2003-11-25
申请号：US09716225
申请日：2000-11-21
IPC分类号： G01N27407
CPC分类号： G01N27/4074 , G01N33/005
摘要： A hydrogen gas sensor capable of accurately measuring hydrogen concentration of a measurement gas atmosphere in the presence of a variety of interfering gasses such as H2O and CO. In the hydrogen gas sensor, the flow sectional area of a diffusion-rate limiting portion 6 is rendered small; the electrode surfaces of first and second electrodes 3 and 4 are rendered large; and/or a solution containing a polymer electrolyte which may be identical to that of a proton-conductive layer 2 is applied onto the surfaces of the first and second electrodes 3 and 4 to thereby form a layer containing the polymer electrolyte. Thus, the rate of conduction of protons from the first electrode 3 to the second electrode 4 becomes greater than the rate at which protons are derived from hydrogen which is introduced onto the first electrode 3 via the diffusion-rate limiting portion 6.
摘要翻译： 一种氢气传感器，能够在各种干扰气体如H 2 O和CO的存在下精确测量测量气体气氛的氢浓度。在氢气传感器中，使扩散速率限制部分6的流动截面面积 小; 第一和第二电极3和4的电极表面变大; 和/或含有与质子传导层2相同的聚合物电解质的溶液施加到第一和第二电极3和4的表面上，从而形成含有聚合物电解质的层。 因此，从第一电极3到第二电极4的质子传导速率变得比通过扩散速率限制部分6被引入到第一电极3上的氢导出质子的速率大。
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公开(公告)号：US07276141B2
公开(公告)日：2007-10-02
申请号：US10628400
申请日：2003-07-29
IPC分类号： G01N27/407
CPC分类号： G01N27/4074 , G01N33/005
摘要： A hydrogen gas sensor capable of accurately measuring hydrogen concentration of a measurement gas atmosphere in the presence of a variety of interfering gasses such as H2O and CO. In the hydrogen gas sensor, the flow sectional area of a diffusion-rate limiting portion 6 is rendered small; the electrode surfaces of first and second electrodes 3 and 4 are rendered large; and/or a solution containing a polymer electrolyte which may be identical to that of a proton-conductive layer 2 is applied onto the surfaces of the first and second electrodes 3 and 4 to thereby form a layer containing the polymer electrolyte. Thus, the rate of conduction of protons from the first electrode 3 to the second electrode 4 becomes greater than the rate at which protons are derived from hydrogen which is introduced onto the first electrode 3 via the diffusion-rate limiting portion 6.
摘要翻译： 一种氢气传感器，能够在各种干扰气体如H 2 O和CO存在下精确测量测量气体气氛的氢浓度。在氢气传感器中，流量截面积 扩散速率限制部分6变小; 第一和第二电极3和4的电极表面变大; 和/或含有与质子传导层2相同的聚合物电解质的溶液施加到第一和第二电极3和4的表面上，从而形成含有聚合物电解质的层。 因此，从第一电极3到第二电极4的质子传导速率变得比通过扩散速率限制部分6被引入到第一电极3上的氢导出质子的速率大。
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公开(公告)号：US20070261471A1
公开(公告)日：2007-11-15
申请号：US11797802
申请日：2007-05-08
IPC分类号： G01N33/497 , G01N7/00 , G01N29/02
CPC分类号： G01N27/70
摘要： A soot sensor includes an insulator having a through-hole and a center electrode provided in the through-hole of the insulator so that a leading end of the center electrode protrudes from a leading end of the insulator and faces a discharge gap. A heating member is embedded in the insulator, and the distance between the heating member and the leading end of the center electrode is at least 10 mm.
摘要翻译： 煤烟传感器包括具有通孔的绝缘体和设置在绝缘体的通孔中的中心电极，使得中心电极的前端从绝缘体的前端突出并面向放电间隙。 加热构件嵌入在绝缘体中，并且加热构件与中心电极的前端之间的距离为至少10mm。
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公开(公告)号：US20080178657A1
公开(公告)日：2008-07-31
申请号：US12022366
申请日：2008-01-30
申请人： Daisuke Komatsu , Norihiko Nadanami , Masato Katsute , Hitoshi Yokoi , Tomonori Kondo , Wataru Matsutani , Kouichi Imaeda
发明人： Daisuke Komatsu , Norihiko Nadanami , Masato Katsute , Hitoshi Yokoi , Tomonori Kondo , Wataru Matsutani , Kouichi Imaeda
IPC分类号： G01R19/155
CPC分类号： G01N15/0656
摘要： A soot detecting apparatus includes: a high voltage generating unit for generating a high voltage; a discharge sensor which includes a pair of electrodes to be, disposed in an atmosphere to be detected, for causing a spark discharge at a discharge voltage dependent upon soot concentration in the atmosphere when the high voltage is applied across the pair of electrodes; a first detection unit for detecting a first discharge voltage value when the spark discharge occurs in the discharge sensor upon application of the high voltage of a predetermined voltage polarity; a first output unit for determining a first soot concentration value based on the first discharge voltage value; and a changeover unit for converting the predetermined voltage polarity to an opposite voltage polarity for causing reverse spark discharge at the pair of electrodes of the discharge sensor.
摘要翻译： 烟灰检测装置包括：高电压产生单元，用于产生高电压; 放电传感器，其包括设置在待检测气氛中的一对电极，用于当高电压施加在所述一对电极上时，使得在取决于大气中的烟灰浓度的放电电压下产生火花放电; 第一检测单元，用于当施加预定电压极性的高电压时在放电传感器中发生火花放电时检测第一放电电压值; 第一输出单元，用于基于第一放电电压值确定第一烟灰浓度值; 以及用于将预定电压极性转换为相反电压极性的转换单元，用于在放电传感器的一对电极处引起反向火花放电。
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