SYSTEM WITH MAGNETIC FIELD SHIELD STRUCTURE

A system includes an encoder magnet, a magnetic field sensor, and a shield structure. The encoder magnet is configured to rotate about an axis of rotation and is configured to produce a measurement magnetic field. The magnetic field sensor is axially displaced away from the encoder magnet and is configured to detect the measurement magnetic field. The shield structure at least partially surroundsboth of the encoder magnet and the magnetic field sensor for shielding against stray magnetic fields. The shield structure attaches to a secondary structure. The shield structure and the encoder magnet may be coupled via the secondary structure so that they are commonly rotational. Alternatively, the sensor package and the shield structure are coupled via the secondary structure so that they are nonrotational relative to the encoder magnet. 一种系统，所述系统包括编码器磁体、磁场传感器和屏蔽结构。所述编码器磁体被构造成围绕旋转轴旋转，并且被构造成产生测量磁场。所述磁场传感器远离所述编码器磁体轴向位移，并且被构造成检测所述测量磁场。所述屏蔽结构至少部分地包围所述编码器磁体和所述磁场传感器两者，以屏蔽杂散磁场。所述屏蔽结构附接到次级结构。所述屏蔽结构和所述编码器磁体可通过所述次级结构耦合，使得所述屏