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公开(公告)号：US20190242922A1
公开(公告)日：2019-08-08
申请号：US16385172
申请日：2019-04-16
Applicant: Methode Electronics Inc.
Inventor： Seong-Jae Lee
Abstract: A speed sensor for a rotating shaft includes a plurality of magnetic portions on the shaft that output a magnetic field from each of the magnetic portions, wherein the magnetic portions are integrally formed in the shaft by magnetically polarizing the shaft material itself. At least one magnetic field sensor is positioned proximate to the shaft for detecting the magnetic field from each of the magnetic portions and for outputting a signal corresponding to the angular speed of the shaft as the shaft rotates. The signal is useful for calculating the angular speed of the shaft, and the calculated angular speed value is useful for things like adjusting the angular speed of the shaft, monitoring the performance of the system in which the shaft is used, and for other purposes.
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2.发明授权公开(公告)号：US08836458B2
公开(公告)日：2014-09-16
申请号：US13867644
申请日：2013-04-22
Applicant: Methode Electronics,Inc.
Inventor： Seong-Jae Lee
CPC classification number: G01L3/10 , G01L3/1435 , Y10T29/49826
Abstract: A magnetic torque sensing device having a disk-shaped member with a magnetoelastically active region. The magnetoelastically active region has oppositely polarized magnetically conditioned regions with initial directions of magnetization that are perpendicular to the sensitive directions of magnetic field sensor pairs placed proximate to the magnetically active region. Magnetic field sensors are specially positioned in relation to the disk-shaped member to accurately measure torque while providing improved RSU performance and reducing the detrimental effects of compassing.
Abstract translation: 一种磁转矩传感装置，具有具有磁弹性活性区域的盘形部件。 磁弹性有源区域具有相反极化的磁调节区域，其初始磁化方向垂直于靠近磁性有源区域放置的磁场传感器对的敏感方向。 磁场传感器相对于盘形部件特别定位，以精确测量扭矩，同时提供改进的RSU性能并减少罗盘的有害影响。
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