公开(公告)号：US07294252B2

公开(公告)日：2007-11-13

申请号：US11538252

申请日：2006-10-03

申请人： Da Yu Wang ,  Walter T. Symons ,  Robert Jerome Farhat ,  Sheng Yao ,  Joachim Kupe

发明人： Da Yu Wang ,  Walter T. Symons ,  Robert Jerome Farhat ,  Sheng Yao ,  Joachim Kupe

IPC分类号： G01N27/407

CPC分类号： G01N33/0037 ,  G01N27/4074 ,  Y02A50/245

摘要： Disclosed herein are NOx sensors and methods of using the same. In one embodiment, a method for sensing NOx comprises: contacting a first NOx electrode with the gas, contacting a second NOx electrode with the gas, determining a NO2 emf between the first NOX electrode and a first reference electrode, determining a NOx emf between the second NOx electrode and a second reference electrode, and determining a NO2 concentration and a NO concentration using the NO2 emf and the NOx emf. The first electrode can be at a first temperature of greater than or equal to about 700° C., and the second electrode can be at a second temperature of about 500° C. to about 650° C.

摘要翻译： 本文公开了NOx传感器及其使用方法。 在一个实施例中，用于感测NOx的方法包括：使第一NOx电极与气体接触，使第二NOx电极与气体接触，确定第一NO x电极和第一参考电极之间的NO 2 电极，确定第二NOx电极和第二参比电极之间的NOx电动势，以及使用NO 2 2 emf和NO x emf确定NO 2浓度和NO浓度 。 第一电极可以处于大于或等于约700℃的第一温度，并且第二电极可以处于约500℃至约650℃的第二温度。

公开(公告)号：US07828955B2

公开(公告)日：2010-11-09

申请号：US11483448

申请日：2006-07-10

申请人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Carlos A. Valdes ,  Elizabeth M. Briggs ,  Kaius K. Polikarpus ,  Joachim Kupe

发明人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Carlos A. Valdes ,  Elizabeth M. Briggs ,  Kaius K. Polikarpus ,  Joachim Kupe

IPC分类号： G01N27/407

CPC分类号： G01N33/0054 ,  G01N27/4074 ,  Y02A50/246

摘要： One embodiment of an ammonia gas sensor includes: a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The sensing electrode comprises the reaction product of a main material selected from the group consisting of vanadium, tungsten, molybdenum, vanadium oxides, tungsten oxides, molybdenum oxides, and combinations comprising at least one of the foregoing main materials, and an electrically conducting material selected from the group consisting of electrically conductive metals, electrically conductive metal oxides, and combinations comprising at least one of the foregoing.

摘要翻译： 氨气传感器的一个实施例包括：参比电极，氨选择性感测电极和设置在其间的电解质。 感测电极包括选自钒，钨，钼，氧化钒，氧化钨，氧化钼以及包含至少一种前述主要材料的组合的主要材料的反应产物和选择的导电材料 来自由导电金属，导电金属氧化物组成的组，以及包含前述的至少一种的组合。

公开(公告)号：US07074319B2

公开(公告)日：2006-07-11

申请号：US10734018

申请日：2003-12-11

申请人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Carlos A. Valdes ,  Elizabeth M. Briggs ,  Kaius K. Polikarpus ,  Joachim Kupe

发明人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Carlos A. Valdes ,  Elizabeth M. Briggs ,  Kaius K. Polikarpus ,  Joachim Kupe

IPC分类号： G01N27/407

CPC分类号： G01N33/0054 ,  G01N27/4074 ,  Y02A50/246

摘要： One embodiment of an ammonia gas sensor includes: a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The sensing electrode comprises the reaction product of a main material selected from the group consisting of vanadium, tungsten, molybdenum, vanadium oxides, tungsten oxides, molybdenum oxides, and combinations comprising at least one of the foregoing main materials, and an electrically conducting material selected from the group consisting of electrically conductive metals, electrically conductive metal oxides, and combinations comprising at least one of the foregoing.

公开(公告)号：US20090301878A1

公开(公告)日：2009-12-10

申请号：US12133962

申请日：2008-06-05

申请人： Da Yu Wang ,  Carlos A. Valdes ,  Walter T. Symons ,  Robert J. Farhat ,  Sheng Yao ,  Mustafa U. Unuvar ,  David K. Chen ,  David D. Cabush

发明人： Da Yu Wang ,  Carlos A. Valdes ,  Walter T. Symons ,  Robert J. Farhat ,  Sheng Yao ,  Mustafa U. Unuvar ,  David K. Chen ,  David D. Cabush

IPC分类号： G01N27/407 ,  B05D5/12

CPC分类号： G01N33/0054 ,  Y02A50/246

摘要： Disclosed herein is an ammonia sensor element comprising an ammonia selective sensor electrode, a reference electrode, a solid electrolyte in ionic communication with the ammonia selective sensor electrode and the reference electrode, and a protective layer disposed on the ammonia selective sensor electrode, comprising a porous portion comprising an ammonia-inert material. A method of making an ammonia gas sensor element comprises disposing an ammonia selective sensor electrode on and in ionic communication with a solid electrolyte, disposing a reference electrode on and in ionic communication with the solid electrolyte, and disposing a protective layer comprising a porous portion comprising an ammonia-inert material on the ammonia selective sensor electrode.

摘要翻译： 本文公开了一种氨传感器元件，其包括氨选择性传感器电极，参考电极，与氨选择性传感器电极和参考电极离子连通的固体电解质，以及设置在氨选择性传感器电极上的保护层，包括多孔 部分包括氨惰性材料。 一种制造氨气传感器元件的方法包括将氨选择性传感器电极设置在与固体电解质离子连通的位置上，将参考电极设置在固体电解质上并与其固体电解质离子连通，并且设置包括多孔部分的保护层，包括 氨选择性传感器电极上的氨惰性材料。

公开(公告)号：US20100077833A1

公开(公告)日：2010-04-01

申请号：US12240354

申请日：2008-09-29

申请人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Sheng Yao

发明人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Sheng Yao

IPC分类号： G01N35/00

CPC分类号： G01N33/0037 ,  G01N33/0054 ,  Y02A50/245 ,  Y02A50/246

摘要： An exhaust gas sensor and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensor includes a NO2 Nernst cell that generates a first voltage indicative of a NO2 concentration in the exhaust gases communicating with the NO2 sensing electrode. The exhaust gas sensor further includes a NOx Nernst cell that generates a second voltage indicative of a NOx concentration in the exhaust gases communicating with the NOx sensing electrode. The exhaust gas sensor further includes a NH3 Nernst cell that generates a third voltage indicative of a NH3 concentration in the exhaust gases communicating with the NH3 sensing electrode.

摘要翻译： 提供废气传感器和确定废气成分浓度的方法。 废气传感器包括产生指示与NO 2感测电极连通的废气中的NO 2浓度的第一电压的NO2能斯特电池。 废气传感器还包括NOx能斯特电池，其产生指示与NOx感测电极连通的废气中的NOx浓度的第二电压。 废气传感器还包括产生指示与NH 3感测电极连通的废气中的NH 3浓度的第三电压的NH3能斯特电池。

公开(公告)号：US08051700B2

公开(公告)日：2011-11-08

申请号：US12240354

申请日：2008-09-29

申请人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Sheng Yao

发明人： Da Yu Wang ,  Walter T. Symons ,  Robert J. Farhat ,  Sheng Yao

IPC分类号： G01N7/00

CPC分类号： G01N33/0037 ,  G01N33/0054 ,  Y02A50/245 ,  Y02A50/246

摘要： An exhaust gas sensor and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensor includes a NO2 Nernst cell that generates a first voltage indicative of a NO2 concentration in the exhaust gases communicating with the NO2 sensing electrode. The exhaust gas sensor further includes a NOx Nernst cell that generates a second voltage indicative of a NOx concentration in the exhaust gases communicating with the NOx sensing electrode. The exhaust gas sensor further includes a NH3 Nernst cell that generates a third voltage indicative of a NH3 concentration in the exhaust gases communicating with the NH3 sensing electrode.

摘要翻译： 提供废气传感器和确定废气成分浓度的方法。 废气传感器包括产生指示与NO 2感测电极连通的废气中的NO 2浓度的第一电压的NO2能斯特电池。 废气传感器还包括NOx能斯特电池，其产生指示与NOx感测电极连通的废气中的NOx浓度的第二电压。 废气传感器还包括产生指示与NH 3感测电极连通的废气中的NH 3浓度的第三电压的NH3能斯特电池。

公开(公告)号：US08103458B2

公开(公告)日：2012-01-24

申请号：US12337784

申请日：2008-12-18

申请人： Da Yu Wang ,  Sheng Yao ,  David D. Cabush ,  Walter T. Symons ,  Robert J. Farhat

发明人： Da Yu Wang ,  Sheng Yao ,  David D. Cabush ,  Walter T. Symons ,  Robert J. Farhat

IPC分类号： G01N31/00 ,  G01N33/497

CPC分类号： G01N27/4074

摘要： An exhaust gas sensing system and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensing system includes a NH3 sensing cell, a NO2 sensing cell, a NOx pumping cell, and a current sensor that detects an electrical current flowing through the NOx pumping cell. A computer determines a NO2 concentration value, a NH3 concentration value, a NO concentration value, and a NOx concentration value based on signals from the NH3 sensing cell, the NO2 sensing cell, and the current sensor.

摘要翻译： 提供了一种排气感测系统和用于确定废气成分浓度的方法。 排气感测系统包括NH 3感测单元，NO 2感测单元，NOx泵浦单元以及检测流过NOx抽滤单元的电流的电流传感器。 计算机基于来自NH 3感测单元，NO2感测单元和电流传感器的信号来确定NO 2浓度值，NH 3浓度值，NO浓度值和NOx浓度值。

公开(公告)号：US20100161242A1

公开(公告)日：2010-06-24

申请号：US12337784

申请日：2008-12-18

申请人： Da Yu Wang ,  Sheng Yao ,  David D. Cabush ,  Walter T. Symons ,  Robert J. Farhat

发明人： Da Yu Wang ,  Sheng Yao ,  David D. Cabush ,  Walter T. Symons ,  Robert J. Farhat

IPC分类号： G06F19/00

CPC分类号： G01N27/4074

摘要： An exhaust gas sensing system and a method for determining concentrations of exhaust gas constituents are provided. The exhaust gas sensing system includes a NH3 sensing cell, a NO2 sensing cell, a NOx pumping cell, and a current sensor that detects an electrical current flowing through the NOx pumping cell. A computer determines a NO2 concentration value, a NH3 concentration value, a NO concentration value, and a NOx concentration value based on signals from the NH3 sensing cell, the NO2 sensing cell, and the current sensor.

摘要翻译： 提供了一种排气感测系统和用于确定废气成分浓度的方法。 排气感测系统包括NH 3感测单元，NO 2感测单元，NOx泵浦单元以及检测流过NOx抽滤单元的电流的电流传感器。 计算机基于来自NH 3感测单元，NO2感测单元和电流传感器的信号来确定NO 2浓度值，NH 3浓度值，NO浓度值和NOx浓度值。

公开(公告)号：US20090260987A1

公开(公告)日：2009-10-22

申请号：US12105539

申请日：2008-04-18

申请人： Carlos A. Valdes ,  Jinping Zhang ,  Raymond L. Bloink ,  Fenglian Chang ,  Da Yu Wang ,  Walter T. Symons ,  Sheng Yao

发明人： Carlos A. Valdes ,  Jinping Zhang ,  Raymond L. Bloink ,  Fenglian Chang ,  Da Yu Wang ,  Walter T. Symons ,  Sheng Yao

IPC分类号： G01N27/26

CPC分类号： G01N27/4073

摘要： Disclosed herein is a method of making a gas sensor element, comprising calcining a NOx sensor electrode material at a NOx sensor electrode material calcination temperature of about 1200 to about 1600° C. to form a calcined NOx sensor electrode material, disposing the calcined NOx sensor electrode material on a substrate to form a substrate comprising a NOx sensor electrode, and firing the substrate comprising the NOx sensor electrode at a gas sensor element firing temperature to form a gas sensor element comprising a NOx sensor electrode. Also disclosed is a gas sensor comprising the gas sensor element.

摘要翻译： 本发明公开了一种制造气体传感器元件的方法，包括在约1200至约1600℃的NOx传感器电极材料煅烧温度下煅烧NOx传感器电极材料，以形成经煅烧的NOx传感器电极材料，将煅烧的NOx传感器 电极材料，以形成包括NOx传感器电极的基板，并且在气体传感器元件点火温度下烧制包含NOx传感器电极的基板，以形成包括NOx传感器电极的气体传感器元件。 还公开了一种包括气体传感器元件的气体传感器。

公开(公告)号：US06638416B2

公开(公告)日：2003-10-28

申请号：US09961661

申请日：2001-09-24

申请人： Da Yu Wang ,  David K. Chen ,  Kaius K. Polikarpus ,  Walter T. Symons

发明人： Da Yu Wang ,  David K. Chen ,  Kaius K. Polikarpus ,  Walter T. Symons

IPC分类号： G01N27407

CPC分类号： G01N27/4072 ,  G01N33/005

摘要： A hydrogen sensor and process for measuring hydrogen gas concentrations includes a pump cell and a measuring cell. The pump cell includes a first conducting electrolyte layer having a top and a bottom surface, and an electrode disposed on the top and bottom surfaces, wherein the top electrode is in communication with an unknown concentration of hydrogen gas. The measuring cell includes a second conducting electrolyte layer having a top and a bottom surface, and an electrode disposed on the top and bottom surfaces, wherein the bottom electrode is in communication with a reference gas source. A diffusion-limiting barrier is disposed between the pump cell bottom electrode and the measuring cell top electrode, wherein hydrogen diffusion through the diffusion-limiting barrier is controlled by a Knudsen diffusion mechanism at hydrogen concentrations greater than about 40%.

摘要翻译： 氢传感器和用于测量氢气浓度的方法包括泵浦单元和测量单元。 泵电池包括具有顶表面和底表面的第一导电电解质层和设置在顶表面和底表面上的电极，其中顶电极与未知浓度的氢气连通。 测量单元包括具有顶表面和底表面的第二导电电解质层和设置在顶表面和底表面上的电极，其中底电极与参考气体源连通。 扩散限制屏障设置在泵电池底部电极和测量池顶部电极之间，其中通过扩散限制屏障的氢气扩散通过克氏扩散机构在大于约40％的氢浓度下控制。