公开(公告)号：US20140015520A1

公开(公告)日：2014-01-16

申请号：US13550285

申请日：2012-07-16

申请人： ShanoPrasad Kunjappan ,  Perry A. Holman, JR. ,  Madhan Raj Bagianathan ,  Dinesh Naik ,  Christopher Kenney ,  Ravi Kasturi Raj

发明人： ShanoPrasad Kunjappan ,  Perry A. Holman, JR. ,  Madhan Raj Bagianathan ,  Dinesh Naik ,  Christopher Kenney ,  Ravi Kasturi Raj

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： This disclosure describes techniques for sensing an angular position of a rotating object over an angular position range that includes up to 360 degrees using an arc position encoder comprising a substantially 180-degree angular position sensing range. The encoder may include a base comprising an arc length defined by a first and a second end, one or more magnetic field sensors disposed within the base between the first and second ends, and one or more polarity transition sensors also disposed within the base between the first and second ends. The encoder may further include a magnetic target that includes first and second magnetic poles disposed on opposite ends so as to generate a uniform magnetic field, wherein the magnetic target is coupled to the rotating object so as to rotate about an axis of rotation located substantially in a center of a circle defined by the base.

摘要翻译： 本公开描述了使用包括基本上180度的角度位置感测范围的弧形位置编码器来感测旋转物体在包括高达360度的角度位置范围内的角位置的技术。 编码器可以包括基部，其包括由第一和第二端限定的弧长度，设置在第一和第二端之间的基部内的一个或多个磁场传感器，以及一个或多个极性转换传感器， 第一和第二端。 编码器还可以包括磁性目标，其包括设置在相对端上的第一和第二磁极，以便产生均匀的磁场，其中磁性目标物被联接到旋转物体上，以绕位于基本上位于 由基座定义的圆的中心。

公开(公告)号：US08816679B2

公开(公告)日：2014-08-26

申请号：US13550285

申请日：2012-07-16

申请人： ShanoPrasad Kunjappan ,  Perry A. Holman, Jr. ,  Madhan Raj Bagianathan ,  Dinesh Naik ,  Christopher Kenney ,  Ravi Kasturi Raj

发明人： ShanoPrasad Kunjappan ,  Perry A. Holman, Jr. ,  Madhan Raj Bagianathan ,  Dinesh Naik ,  Christopher Kenney ,  Ravi Kasturi Raj

IPC分类号： G01B7/30

CPC分类号： G01D5/145

摘要： This disclosure describes techniques for sensing an angular position of a rotating object over an angular position range that includes up to 360 degrees using an arc position encoder comprising a substantially 180-degree angular position sensing range. The encoder may include a base comprising an arc length defined by a first and a second end, one or more magnetic field sensors disposed within the base between the first and second ends, and one or more polarity transition sensors also disposed within the base between the first and second ends. The encoder may further include a magnetic target that includes first and second magnetic poles disposed on opposite ends so as to generate a uniform magnetic field, wherein the magnetic target is coupled to the rotating object so as to rotate about an axis of rotation located substantially in a center of a circle defined by the base.

摘要翻译： 本公开描述了使用包括基本上180度的角度位置感测范围的弧形位置编码器来感测旋转物体在包括高达360度的角度位置范围内的角位置的技术。 编码器可以包括基部，其包括由第一和第二端限定的弧长度，设置在第一和第二端之间的基部内的一个或多个磁场传感器，以及一个或多个极性转换传感器， 第一和第二端。 编码器还可以包括磁性目标，其包括设置在相对端上的第一和第二磁极，以便产生均匀的磁场，其中磁性目标物被联接到旋转物体上，以绕位于基本上位于 由基座定义的圆的中心。