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84 条记录 (耗时 0.041 秒)

    Angle sensor with misalignment detection and correction
    42.
    发明授权
    Angle sensor with misalignment detection and correction 有权
    角度传感器具有不对准检测和校正功能

    公开(公告)号：US09007054B2

    公开(公告)日：2015-04-14

    申请号：US13439082

    申请日：2012-04-04

    申请人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    发明人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    IPC分类号： G01R33/00 ,  G01R33/07 ,  G01R33/09 ,  G01D3/028

    CPC分类号： G01R33/0094 ,  G01D3/028 ,  G01R33/07 ,  G01R33/09

    摘要： An angle sensor to provide sensor-to-magnet misalignment detection and correction capability in rotation angle measurement applications is presented. The angle sensor has magnetic field sensing elements to sense magnetic field associated with a rotating magnet. The angle sensor includes circuitry to generate signals based on the sensing by the sensing elements. The signals provide information that can be combined according to an error function to provide misalignment detection. The angle sensor can be used with or can be incorporated in an angle measurement device that employs a processing unit to produce a rotation angle value. In one embodiment, the processing unit is configured to implement the error function and correct the angle value for detected misalignment. In another embodiment, the error function is performed by a programming device and detected misalignment is corrected through mechanical adjustment of sensor-to-magnet position.

    摘要翻译： 提出了一种角度传感器，用于在旋转角度测量应用中提供传感器到磁体的未对准检测和校正能力。 角度传感器具有用于感测与旋转磁体相关联的磁场的磁场感测元件。 角度传感器包括基于感测元件的感测产生信号的电路。 信号提供可以根据误差函数组合以提供不对准检测的信息。 该角度传感器可以与采用加工单元产生旋转角度值的角度测量装置结合使用或者可以并入其中。 在一个实施例中，处理单元被配置为实现误差函数并校正检测到的未对准的角度值。 在另一个实施例中，误差函数由编程装置执行，并且通过传感器到磁体位置的机械调节来校正检测到的未对准。

    Magnetic Field Sensor with Automatic Sensitivity Adjustment
    45.
    发明申请
    Magnetic Field Sensor with Automatic Sensitivity Adjustment 有权
    具有自动灵敏度调节的磁场传感器

    公开(公告)号：US20110074405A1

    公开(公告)日：2011-03-31

    申请号：US12959672

    申请日：2010-12-03

    申请人： Michael C. Doogue ,  Gerardo Monreal ,  William P. Taylor

    发明人： Michael C. Doogue ,  Gerardo Monreal ,  William P. Taylor

    IPC分类号： G01R33/07 ,  G01R33/02

    CPC分类号： G01R33/07 ,  G01R33/0023 ,  G01R33/0041

    摘要： Magnetic field sensors have a magnetic field sensing element and also a feedback circuit to provide a gain-adjustment signal to affect a sensitivity associated with the magnetic field sensing element. In some arrangements, the feedback circuit can include piezoresistors to sense a strain of a substrate over which the magnetic field sensor is disposed. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed strain. In other arrangements, the feedback circuit can generate pulsed magnetic fields proximate to the magnetic field sensing element in order to directly measure the sensitivity of the magnetic field sensing element. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed sensitivity.

    摘要翻译： 磁场传感器具有磁场感测元件以及反馈电路，以提供增益调节信号以影响与磁场感测元件相关联的灵敏度。 在一些布置中，反馈电路可以包括压敏电阻器，用于感测设置有磁场传感器的基板的应变。 利用这些布置，反馈电路可以根据感测的应变产生增益调整信号。 在其他布置中，反馈电路可以产生靠近磁场感测元件的脉冲磁场，以便直接测量磁场感测元件的灵敏度。 利用这些布置，反馈电路可以根据所感测的灵敏度产生增益调整信号。

    Electronic Circuit Configured to Reset a Magnetoresistance Element
    48.
    发明申请
    Electronic Circuit Configured to Reset a Magnetoresistance Element 有权
    电子电路配置为复位磁阻元件

    公开(公告)号：US20100026289A1

    公开(公告)日：2010-02-04

    申请号：US12183541

    申请日：2008-07-31

    申请人： William P. Taylor ,  Michael C. Doogue

    发明人： William P. Taylor ,  Michael C. Doogue

    IPC分类号： G01R33/09

    CPC分类号： G01R33/093 ,  B82Y25/00 ,  G01R15/205

    摘要： An electronic circuit includes a magnetoresistance element for providing an output signal proportional to a magnetic field. The magnetoresistance element also has a hysteresis characteristic. The electronic circuit also includes at least one of a reset conductor or a bias conductor disposed proximate to the magnetoresistance element. For embodiments having a reset conductor, the electronic circuit is configured to generate a reset current carried by the reset conductor in response to the comparison. In response to the reset current, the reset conductor is configured to generate a reset magnetic field at the magnetoresistance element to temporarily force the magnetoresistance element to a saturation region of the hysteresis characteristic.

    摘要翻译： 电子电路包括用于提供与磁场成比例的输出信号的磁阻元件。 磁阻元件也具有滞后特性。 电子电路还包括重置导体或靠近磁阻元件设置的偏置导体中的至少一个。 对于具有复位导体的实施例，电子电路被配置为响应于比较而产生由复位导体承载的复位电流。 响应于复位电流，复位导体被配置为在磁阻元件处产生复位磁场，以暂时将磁阻元件强制到滞后特性的饱和区域。

    FOLDING CURRENT SENSOR
    49.
    发明申请
    FOLDING CURRENT SENSOR 有权
    折叠电流传感器

    公开(公告)号：US20100001715A1

    公开(公告)日：2010-01-07

    申请号：US12167681

    申请日：2008-07-03

    申请人： Michael C. Doogue ,  William P. Taylor ,  Richard Dickinson

    发明人： Michael C. Doogue ,  William P. Taylor ,  Richard Dickinson

    IPC分类号： G01R15/20 ,  G01R19/00

    CPC分类号： G01R15/207

    摘要： The invention provides a current sensor that may be folded over a conductor without the need to sever the conductor or thread the conductor through the current sensor. In one embodiment, the current sensor includes an outer body having a first folding portion and a second folding portion coupled to the first folding portion. The current sensor also includes a soft ferromagnetic body disposed within the outer body comprising a first core element and a second core element. The first and second core elements form a lumen when the first and second folding portions are folded. The lumen is configured to receive a conductor. The current sensor also includes a magnetic field detector to sense a current in the conductor. The magnetic field detector is disposed at least partially between the first and second core elements when the first and second folding portions are folded.

    摘要翻译： 本发明提供一种可以在导体上折叠的电流传感器，而不需要切断导体或将导体穿过电流传感器。 在一个实施例中，电流传感器包括具有第一折叠部分和耦合到第一折叠部分的第二折叠部分的外部主体。 电流传感器还包括设置在外体内的软铁磁体，其包括第一芯元件和第二芯元件。 当折叠第一和第二折叠部分时，第一和第二芯元件形成内腔。 管腔被配置为接收导体。 电流传感器还包括用于感测导体中的电流的磁场检测器。 当第一和第二折叠部分被折叠时，磁场检测器至少部分地设置在第一和第二芯元件之间。