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    • 1. 发明申请
    • Ceramic Particulate Matter Sensor With Low Electrical Leakage
    • 陶瓷微粒传感器低漏电
    • US20090056416A1
    • 2009-03-05
    • US12203070
    • 2008-09-02
    • Balakrishnan G. NairBrett HendersonGangqiang WangThomas Koemer Pace
    • Balakrishnan G. NairBrett HendersonGangqiang WangThomas Koemer Pace
    • G01N37/00
    • G01N15/0656G01N27/60
    • A ceramic particulate matter sensor to measure particulate matter within an exhaust stream. The particulate matter sensor includes a high voltage electrode on a first conductive layer and a detection electrode on a second conductive layer within a stack of ceramic layers. The stack of ceramic layers is bonded as a single rigid structure. The detection electrode generates a measurement of particulate matter within an exhaust stream. The particulate matter sensor also includes an insulating material positioned adjacent to the second conductive layer to insulate the detection electrode from another conductive layer within the stack of ceramic layers. The particulate matter sensor also includes an electrical heater to burn off an accumulation of contaminating particulate matter from at least one electrode of the high voltage and detection electrodes. The particulate matter sensor also includes means for substantially preventing electrical leakage through the insulating material to the second conductive layer.
    • 一种用于测量排气流中的颗粒物质的陶瓷颗粒物质传感器。 颗粒物质传感器包括在第一导电层上的高压电极和位于陶瓷层堆叠内的第二导电层上的检测电极。 陶瓷层的叠层结合为单个刚性结构。 检测电极产生废气流中的颗粒物质的测量。 颗粒物传感器还包括邻近第二导电层定位的绝缘材料,以使检测电极与陶瓷层堆叠内的另一导电层绝缘。 颗粒物质传感器还包括电加热器,以从高电压和检测电极的至少一个电极中消除污染颗粒物质的积聚。 颗粒物传感器还包括用于基本上防止通过绝缘材料到第二导电层的漏电的装置。
    • 2. 发明申请
    • Particulate Matter Sensor
    • 颗粒物传感器
    • US20080265870A1
    • 2008-10-30
    • US12111080
    • 2008-04-28
    • Balakrishnan G. NairBrett Henderson
    • Balakrishnan G. NairBrett Henderson
    • G01N27/00H01R43/00
    • G01N15/0656G01N27/60Y10T29/49002
    • A sensor apparatus to burn off contaminating particulate matter from a sensor. The sensor apparatus includes a signal electrode assembly, a detector electrode assembly, and an electrical heater. The signal electrode assembly includes a signal electrode coupled to a signal electrode insulating substrate. The detector electrode assembly includes a detector electrode coupled to a detector electrode insulating substrate. The detector electrode is positioned relative to the sensor electrode to generate a measurement of an ambient condition. The electrical heater is positioned relative to the signal and detector electrode assemblies to burn off an accumulation of contaminating particles from at least one electrode assembly of the signal and detector electrode assemblies.
    • 一种用于从传感器中排除污染颗粒物质的传感器装置。 传感器装置包括信号电极组件,检测器电极组件和电加热器。 信号电极组件包括耦合到信号电极绝缘基板的信号电极。 检测器电极组件包括耦合到检测器电极绝缘基板的检测器电极。 检测器电极相对于传感器电极定位以产生环境条件的测量。 电加热器相对于信号和检测器电极组件定位,以消除来自信号和检测器电极组件的至少一个电极组件的污染颗粒的积聚。
    • 4. 发明授权
    • Agglomeration and charge loss sensor for measuring particulate matter
    • 用于测量颗粒物的聚集和电荷损失传感器
    • US08713991B2
    • 2014-05-06
    • US13315146
    • 2011-12-08
    • Klaus AllmendingerBrett HendersonAnthoniraj LourdhusamyLee SorensenJames Steppan
    • Klaus AllmendingerBrett HendersonAnthoniraj LourdhusamyLee SorensenJames Steppan
    • G01N27/60
    • G01N15/0656G01N1/2252G01N2001/2285G01N2015/0046
    • A sensor assembly includes a voltage source, a sensor electrode, a grounded assembly, an integration capacitor, and a current meter. The sensor electrode is coupled to the voltage source to receive a voltage. The sensor electrode is disposed within a directed and controlled exhaust flow to facilitate particle agglomeration into particulate matter structures at a surface of the sensor electrode. The grounded assembly is coupled to a ground reference and disposed at a distance from the sensor electrode. The integration capacitor is coupled to a negative side of the voltage source to integrate in time current pulses from charge transfers from the sensor electrode of the particulate matter structures. The current meter is coupled to the voltage source to measure an integrated value of current supplied to the voltage source in response to charge transfers from the sensor electrode to the particulate matter structures in the exhaust flow.
    • 传感器组件包括电压源,传感器电极,接地组件,积分电容器和电流表。 传感器电极耦合到电压源以接收电压。 传感器电极设置在定向和受控的排气流中,以便于在传感器电极的表面处的颗粒聚集成颗粒物质结构。 接地的组件被耦合到接地参考并且设置在距传感器电极一定距离处。 积分电容器耦合到电压源的负侧,以集成来自颗粒物质结构的传感器电极的电荷传输的时间电流脉冲。 电流表耦合到电压源,以响应于从传感器电极到排气流中的颗粒物质结构的电荷转移来测量提供给电压源的电流的积分值。
    • 5. 发明申请
    • AGGLOMERATION AND CHARGE LOSS SENSOR FOR MEASURING PARTICULATE MATTER
    • 用于测量颗粒物的AGGLOMERATION和CHARGE LOSS传感器
    • US20120312074A1
    • 2012-12-13
    • US13315146
    • 2011-12-08
    • Klaus AllmendingerBrett HendersonAnthoniraj LourdhusamyLee SorensonJames Steppan
    • Klaus AllmendingerBrett HendersonAnthoniraj LourdhusamyLee SorensonJames Steppan
    • G01N7/00
    • G01N15/0656G01N1/2252G01N2001/2285G01N2015/0046
    • A sensor assembly to measure particulate matter is described. The sensor assembly includes a voltage source, a sensor electrode, a grounded assembly, an integration capacitor, and a current meter. The sensor electrode is coupled to the voltage source to receive a voltage. The sensor electrode is disposed within a directed and controlled exhaust flow within the sensor assembly to facilitate particle agglomeration into particulate matter structures at a surface of the sensor electrode. The grounded assembly is coupled to a ground reference and disposed at a distance from the sensor electrode. The integration capacitor is coupled to a negative side of the voltage source. The integration capacitor is configured to integrate in time current pulses from charge transfers from the sensor electrode of the particulate matter structures. The current meter is coupled to the voltage source to measure an integrated value of current supplied to the voltage source in response to charge transfers from the sensor electrode to the particulate matter structures in the exhaust flow.
    • 描述了用于测量颗粒物质的传感器组件。 传感器组件包括电压源,传感器电极,接地组件,积分电容器和电流表。 传感器电极耦合到电压源以接收电压。 传感器电极设置在传感器组件内的定向和受控的排气流中,以便于在传感器电极的表面处的颗粒聚集成颗粒物质结构。 接地的组件被耦合到接地参考并且设置在距传感器电极一定距离处。 积分电容器耦合到电压源的负侧。 集成电容器被配置为集成来自颗粒物质结构的传感器电极的电荷传输的时间电流脉冲。 电流表耦合到电压源,以响应于从传感器电极到排气流中的颗粒物质结构的电荷转移来测量提供给电压源的电流的积分值。