公开(公告)号：WO2014137433A1

公开(公告)日：2014-09-12

申请号：PCT/US2013/074275

申请日：2013-12-11

Applicant: DEERE & COMPANY

Inventor： SINGH, Brij, N. ,  FISK, Aron ,  CLEMENTS, Neal, D. ,  WIELAND, Andrew, D.

IPC: G01R33/00 ,  G01R15/00

CPC classification number: G01R15/20 ,  G01R15/181 ,  G01R19/0007 ,  G01R31/42

Abstract: A sensor comprises primary ferrite members (362) spaced apart from the magnetic field sensor (20) on opposite sides of the magnetic field sensor to concentrate or steer an orientation of a magnetic field of the observed signal toward a target area (409) of the magnetic field sensor (20). A magnetic field sensor (20) senses a direct current signal component or lower frequency component of the observed signal. A first filtering circuit has a high-pass filter response. The first filtering circuit is coupled to the inductor to provide a filtered alternating current signal component. A second filtering circuit has a low-pass filter response. The second filtering circuit coupled to the magnetic field sensor to provide a filtered direct current signal component. A sensor fusion circuit determines an aggregate sensed current based on the filtered alternating current signal component and the filtered direct current signal component.

Abstract translation: 传感器包括在磁场传感器的相对侧上与磁场传感器（20）间隔开的主要铁氧体构件（362），以将观察信号的磁场的取向集中或转向朝向所述磁场传感器的目标区域（409） 磁场传感器（20）。 磁场传感器（20）感测观测信号的直流信号分量或较低频率分量。 第一滤波电路具有高通滤波器响应。 第一滤波电路耦合到电感器以提供滤波的交流信号分量。 第二滤波电路具有低通滤波器响应。 第二滤波电路耦合到磁场传感器以提供滤波的直流信号分量。 传感器融合电路基于经过滤波的交流信号分量和经滤波的直流信号分量确定总感测电流。

公开(公告)号：WO2014137432A1

公开(公告)日：2014-09-12

申请号：PCT/US2013/074225

申请日：2013-12-11

Applicant: DEERE & COMPANY

Inventor： SINGH, Brij, N. ,  FISK, Aron ,  CLEMENTS, Neal, D. ,  WIELAND, Andrew, D.

IPC: G01R15/20 ,  H02P23/00 ,  H02P6/16

CPC classification number: G01R15/181 ,  G01R15/20 ,  G01R19/0007 ,  G01R31/42

Abstract: A sensor (11) comprises an inductor (18) for sensing an alternating current signal component of an observed signal. The inductor (18) comprises a substrate, conductive traces associated with different layers of the substrate, and one or more conductive vias for interconnecting the plurality of conductive traces. A magnetic field sensor (20) senses a direct current signal component of the observed signal. A first filtering circuit (26) has a high-pass filter response. The first filtering circuit (26) is coupled to the inductor (18) to provide a filtered alternating current signal component. A second filtering circuit (28) has a low-pass filter response. The second filtering circuit (28) coupled to the magnetic field sensor (20) to provide a filtered direct current signal component. A sensor fusion circuit (30) determines an aggregate sensed current based on the filtered alternating current signal component and the filtered direct current signal component.

Abstract translation: 传感器（11）包括用于感测观测信号的交流信号分量的电感器（18）。 电感器（18）包括衬底，与衬底的不同层相关联的导电迹线以及用于互连多个导电迹线的一个或多个导电通孔。 磁场传感器（20）感测观测信号的直流信号分量。 第一滤波电路（26）具有高通滤波器响应。 第一滤波电路（26）耦合到电感器（18）以提供滤波的交流信号分量。 第二滤波电路（28）具有低通滤波器响应。 第二滤波电路（28）耦合到磁场传感器（20）以提供滤波的直流信号分量。 传感器融合电路（30）基于滤波的交流信号分量和滤波的直流信号分量来确定总感测电流。