公开(公告)号：EP1754970A2

公开(公告)日：2007-02-21

申请号：EP06076379.4

申请日：2006-07-07

Applicant: Delphi Technologies, Inc.

Inventor： Mowery, Kenneth D. ,  Tackitt, Douglas J.

IPC: G01N27/12

CPC classification number: G01N27/122

Abstract: A technique for reducing a parasitic DC bias voltage on a sensor (S1) monitors the parasitic DC bias voltage on a first element (10) of the sensor (S1). A controlled bias voltage that is applied between the first element (10) of the sensor (S1) and a second element (12) of the sensor (S1) is then modified to substantially maintain the parasitic DC bias voltage at a desired potential.

Abstract translation: 用于减小传感器（S1）上的寄生直流偏置电压的技术监视传感器（S1）的第一元件（10）上的寄生DC偏置电压。 施加在传感器（S1）的第一元件（10）和传感器（S1）的第二元件（12）之间的受控偏置电压被修改，以将寄生DC偏置电压基本上保持在期望的电位。

公开(公告)号：EP1950533A1

公开(公告)日：2008-07-30

申请号：EP08100745.2

申请日：2008-01-22

Applicant: Delphi Technologies, Inc.

Inventor： Nelson, Charles Scott ,  Cabush, David D. ,  Mowery, Kenneth D.

IPC: G01D3/02 ,  G01D18/00

CPC classification number: G01D18/00 ,  G01D3/021

Abstract: A sensing system, comprising: a sensing assembly, the sensing assembly having: a trim resistor integrally formed with the sensing assembly, the trim resistor having a resistance value; a first sensing element for providing a first signal in response to a first sensed condition; a second sensing element for providing a second signal in response to a second sensed condition; and a controller removably secured to the sensing assembly and receiving the first signal and the second signal, the controller being configured to determine the resistance value of the trim resistor; a database associated with the controller, the database having a plurality of resistance values, each resistance value in the database identifies a pair of compensation values; a microprocessor associated with the controller, the microprocessor receiving the resistance value of the trim resistor, the first signal and the second signal, the resistance value of the trim resistor being used to define a selected pair of compensation values from the database, one of the selected pair of compensation values is used to adjust the first signal to provide a first adjusted signal and the other one of the selected pair of compensation values is used to adjust the second signal to provide a second adjusted signal.

Abstract translation: 一种感测系统，包括：一感测组件，具有感测组件：一个微调电阻与感测组件一体地形成，具有电阻值微调电阻; 用于响应于一个第一感测的状况提供第一信号的第一感测元件; 用于响应于一个第二感测状态提供第二信号的第二感测元件; 以及控制器，可拆卸地固定到感测组件和接收所述第一信号和所述第二信号，所述控制器被配置为确定矿微调电阻的电阻值; 与控制器相关联的数据库中，具有电阻值的多个数据库，数据库中的每个电阻值标识的一对补偿值; 与控制器相关联的微处理器，所述微处理器接收所述微调电阻的电阻值，所述第一信号和所述第二信号，所述微调电阻的电阻值被用于从数据库中定义一选定的一对补偿值，所述一个 选择的一对补偿值被用于调节所述第一信号以提供第一调整信号和所选择的一对补偿值的用于调整所述第二信号以提供第二调整信号的另一个。

公开(公告)号：EP1950533B1

公开(公告)日：2012-05-16

申请号：EP08100745.2

申请日：2008-01-22

Applicant: Delphi Technologies, Inc.

Inventor： Nelson, Charles Scott ,  Cabush, David D. ,  Mowery, Kenneth D.

IPC: G01D3/02 ,  G01D18/00

CPC classification number: G01D18/00 ,  G01D3/021

公开(公告)号：EP1754970A3

公开(公告)日：2010-03-31

申请号：EP06076379.4

申请日：2006-07-07

Applicant: Delphi Technologies, Inc.

Inventor： Mowery, Kenneth D. ,  Tackitt, Douglas J.

IPC: G01N27/12

CPC classification number: G01N27/122

Abstract: A technique for reducing a parasitic DC bias voltage on a sensor (S1) monitors the parasitic DC bias voltage on a first element (10) of the sensor (S1). A controlled bias voltage that is applied between the first element (10) of the sensor (S1) and a second element (12) of the sensor (S1) is then modified to substantially maintain the parasitic DC bias voltage at a desired potential.

公开(公告)号：EP1541997A1

公开(公告)日：2005-06-15

申请号：EP04078339.1

申请日：2004-12-09

Applicant: Delphi Technologies, Inc.

Inventor： Mowery, Kenneth D. ,  Tackitt, Douglas J.

IPC: G01N27/12 ,  G01N33/00

CPC classification number: G01N33/0054 ,  G01N27/122 ,  Y02A50/246

Abstract: A method for measuring an impedance of a sensor (S1) that is subject to ion migration includes a number of steps. Initially, a first electrical pulse (VCELL) is applied to an input of the sensor (S1), whose impedance varies according to a first gas concentration in a gas stream. Next, a second electrical pulse (VCELL) is applied to the input of the sensor (S1). The energy of the first and second electrical pulses (VCELL) is approximately the same and the first and second electrical pulses (VCELL) have opposite polarity. A sensor load current (ICELL) is determined during at least one of the first and second electrical pulses (VCELL) to provide a first sensor current (ICELL). Then, the sensor load current (ICELL) during the same one of the first and second electrical pulses (VCELL) is determined to provide a second sensor current (ICELL). Finally, at least one component of the impedance of the sensor (S1) is determined based upon the first and second sensor currents (ICELL).

Abstract translation: 用于测量经受离子迁移的传感器（S1）的阻抗的方法包括多个步骤。 最初，将第一电脉冲（VCELL）施加到传感器（S1）的输入端，其阻抗根据气流中的第一气体浓度而变化。 接下来，将第二电脉冲（VCELL）施加到传感器（S1）的输入端。 第一和第二电脉冲（VCELL）的能量大致相同，并且第一和第二电脉冲（VCELL）具有相反的极性。 在第一和第二电脉冲（VCELL）中的至少一个期间确定传感器负载电流（ICELL）以提供第一传感器电流（ICELL）。 然后，确定在第一和第二电脉冲（VCELL）中相同的一个期间的传感器负载电流（ICELL）以提供第二传感器电流（ICELL）。 最后，基于第一和第二传感器电流（ICELL）来确定传感器（S1）的阻抗的至少一个分量。