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11. 发明授权

US06544467B2 Exhaust gas sensor and the method of manufacture thereof 失效
公开(公告)号：US06544467B2
公开(公告)日：2003-04-08
申请号：US09740166
申请日：2000-12-18
申请人： Walter T. Symons , Kaius K. Polikarpus , Kerry J. Gross
发明人： Walter T. Symons , Kaius K. Polikarpus , Kerry J. Gross
IPC分类号： C04B3332
CPC分类号： C04B35/111 , B32B18/00 , C04B35/6264 , C04B35/62665 , C04B35/6325 , C04B2235/3286 , C04B2235/3409 , C04B2235/449 , C04B2235/6025 , C04B2235/608 , C04B2235/6567 , C04B2235/9615 , C04B2237/343 , C04B2237/348 , C04B2237/62 , C04B2237/66 , C04B2237/68 , G01N27/4071
摘要： A method of manufacturing a ceramic body and a gas sensor is disclosed. The method comprises mixing a ceramic material and an organometallic material with a solvent to form a mixture. The organometallic material comprises both a metallic component and an organic ligand. The mixture is disposed onto a surface, dried, and removed to form the ceramic body. The sensor is made by disposing the ceramic body adjacent to an unfired electrolyte body having an electrode disposed on each side thereof to form a green sensor. The green sensor is co-fired to form the sensor.

12. 发明授权

US06486449B2 Heater patterns for planar gas sensors 失效
公开(公告)号：US06486449B2
公开(公告)日：2002-11-26
申请号：US10020545
申请日：2001-10-29
申请人： Paul C. Kikuchi , Lone-Wen F. Tai , Walter T. Symons
发明人： Paul C. Kikuchi , Lone-Wen F. Tai , Walter T. Symons
IPC分类号： H05B302
CPC分类号： G01N27/4071
摘要： A heater for a gas sensor has a first thermistor element and a second thermistor element arranged in an electrically parallel configuration. Each thermistor element may be deposited onto a substrate such that the first thermistor element extends about a perimeter of the substrate and the second thermistor element extends across a portion of the substrate intermediate the perimeter of the substrate. The thermistor elements are preferably fabricated of materials having differing thermal coefficients of resistivity. A method of heating the gas sensor includes disposing the two thermistor elements in an electrically parallel configuration over a surface of the substrate and passing an electric current through the elements.

13. 发明授权

US06638416B2 Hydrogen sensing process 有权
标题翻译：氢感测过程
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。

14. 发明授权

US06579436B2 Gas sensor and method of producing the same 失效
公开(公告)号：US06579436B2
公开(公告)日：2003-06-17
申请号：US09740354
申请日：2000-12-18
申请人： Da Yu Wang , Paul C. Kikuchi , Walter T Symons , Kaius K. Polikarpus , Larry M. Oberdier
发明人： Da Yu Wang , Paul C. Kikuchi , Walter T Symons , Kaius K. Polikarpus , Larry M. Oberdier
IPC分类号： G01N27407
CPC分类号： G01N27/419
摘要： A gas sensor, comprising an oxygen pump cell with a first pump electrode and a second pump electrode disposed on opposite sides of a first solid electrolyte layer and a second pump electrode. The sensor also comprises an emf cell with an emf electrode and a reference gas electrode disposed on opposite sides of a second solid electrolyte layer. The emf electrode is disposed in fluid communication to the second pump electrode. A via hole is disposed through the first solid electrolyte layer, such that the first pump electrode is in fluid communication with the second pump electrode. A protective insulating layer, having a passage for gas to be sensed, is disposed in contact with the first pump electrode. A first insulating layer, having a conduit, is disposed in contact with the emf electrode. A second insulating layer, having an air channel, is disposed in contact with the reference gas electrode. A heater is disposed in thermal communication with the emf cell. At least four electrical leads are in electrical communication with the sensor. A method of producing a gas sensor is disclosed.

15. 发明申请

US20130264203A1 LOW COST CO-FIRED SENSOR HEATING CIRCUIT 审中-公开
标题翻译：低成本联合传感器加热电路
公开(公告)号：US20130264203A1
公开(公告)日：2013-10-10
申请号：US13701638
申请日：2011-06-04
申请人： Oscar Gamboa , Walter T. Symons , Eric P. Clyde , Kaius K. Polikarpus , Debabrata Sarkar
发明人： Oscar Gamboa , Walter T. Symons , Eric P. Clyde , Kaius K. Polikarpus , Debabrata Sarkar
IPC分类号： G01N27/406 , H05B3/18
CPC分类号： H05B1/00 , G01N27/4067 , H05B3/12 , H05B3/16 , H05B3/18 , H05B3/265 , H05B2203/003 , H05B2203/014 , H05B2203/017
摘要： A planar device includes a heating circuit that is disposed between ceramic layers and co-fired with the ceramic. The heating circuit comprises palladium, and the co-firing of the palladium and ceramic is performed in an oxidizing atmosphere. The formation of defects in the planar device that would otherwise be induced as a result of the palladium oxidizing during the co-firing process is prevented by control of the firing profile, by the geometry of the pattern of the heating circuit, and/or by modifying the palladium to reduce its tendency to oxidize.
摘要翻译：平面装置包括设置在陶瓷层之间并与陶瓷共烧的加热电路。加热回路包括钯，钯和陶瓷的共烧在氧化气氛中进行。通过控制烧制轮廓，加热回路的图案的几何形状和/或由加热回路的图案的几何形状来防止由于在共焙烧过程中由于钯氧化而导致的平面装置中缺陷的形成，改性钯以降低其氧化趋势。

16. 发明授权

US08103458B2 Exhaust gas sensing system and method for determining concentrations of exhaust gas constituents 有权
标题翻译：排气检测系统和废气成分浓度测定方法
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。

17. 发明申请

US20100161242A1 EXHAUST GAS SENSING SYSTEM AND METHOD FOR DETERMINING CONCENTRATIONS OF EXHAUST GAS CONSTITUENTS 有权
标题翻译：排气检测系统及其排放气体浓度浓度测定方法
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。

18. 发明申请

US20090260987A1 METHOD OF MAKING GAS SENSOR ELEMENT, AND GAS SENSOR DERIVED THEREFROM 审中-公开
标题翻译：制造气体传感器元件的方法，以及气体传感器
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。

19. 发明授权

US07279133B2 Planar sensor and a method for measuring the temperature of same 失效
标题翻译：平面传感器和测量温度的方法
公开(公告)号：US07279133B2
公开(公告)日：2007-10-09
申请号：US10029049
申请日：2001-12-20
申请人： David K. Chen , David P. Wallace , Da Yu Wang , Walter T. Symons , Paul C. Kikuchi , Yingjie Lin , Lora Thrun , Mark A. Shost , Joseph G. Ralph
发明人： David K. Chen , David P. Wallace , Da Yu Wang , Walter T. Symons , Paul C. Kikuchi , Yingjie Lin , Lora Thrun , Mark A. Shost , Joseph G. Ralph
IPC分类号： B32B5/02 , B32B27/12 , B32B27/04 , G01N27/00 , G01N27/26
CPC分类号： G01K7/223 , G01N27/419 , Y10T436/207497
摘要： In a planar oxygen sensor having a pump cell, a reference cell, a sensor chamber and a heating device, a ground plane electrode is provided and includes a sensing portion having a first sense lead and a second sense lead and a measuring portion having a first measuring lead and a second measuring lead, wherein the first measuring lead and the second measuring lead have increased surface area relative to said sensing portion such that the resistance between the first measuring lead and the second measuring lead is reduced and wherein the first measuring lead is disposed so as to be communicated with the first sense lead and the second measuring lead is disposed so as to be communicated with the second sense lead. Also, in a planar oxygen sensor having a pump cell, a reference cell, a sensor chamber, a heating device and a ground plane electrode that includes a sensing portion having a first sense lead and a second sense lead and a measuring portion having a first measuring lead and a second measuring lead, a method for measuring the temperature of the planar oxygen sensor is provided and includes obtaining a temperature measurement device, communicating the temperature measurement device with the first measuring lead and the second measuring lead, operating the planar oxygen sensor so as to cause the heating device to heat the planar oxygen sensor, and measuring the resistance between the first measuring lead and the second measuring lead.
摘要翻译：在具有泵电池，参考电池，传感器室和加热装置的平面氧传感器中，提供接地平面电极，并且包括具有第一感测引线和第二感测引线的感测部分和具有第一测量引线和第二测量引线，其中所述第一测量引线和所述第二测量引线相对于所述感测部分具有增加的表面积，使得所述第一测量引线和所述第二测量引线之间的电阻减小，并且其中所述第一测量引线为被布置成与第一感测引线连通，并且第二测量引线被设置成与第二感测引线连通。此外，在具有泵电池，参考电池，传感器室，加热装置和接地平面电极的平面氧传感器中，包括具有第一感测引线和第二感测引线的感测部分和具有第一感测引线的测量部分测量引线和第二测量引线，提供了一种用于测量平面氧传感器的温度的方法，包括获得温度测量装置，将温度测量装置与第一测量引线和第二测量引线连通，操作平面氧传感器以使加热装置加热平面氧传感器，并测量第一测量引线和第二测量引线之间的电阻。

20. 发明授权

US07074319B2 Ammonia gas sensors 有权
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.

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