公开(公告)号：US07210360B2

公开(公告)日：2007-05-01

申请号：US10864231

申请日：2004-06-09

申请人： Thaddeus Schroeder ,  Shaotang Chen ,  Avoki M Omekanda ,  Thomas W Nehl ,  Bruno Lequesne ,  Mohammad S Islam

发明人： Thaddeus Schroeder ,  Shaotang Chen ,  Avoki M Omekanda ,  Thomas W Nehl ,  Bruno Lequesne ,  Mohammad S Islam

IPC分类号： G01L3/02

CPC分类号： G01L3/104

摘要： An apparatus measures relative displacement between a first end and a second end of a shaft. The first and second ends being centered on a shaft axis. The apparatus includes first and second ferromagnetic plates. The first ferromagnetic plate has a first side and a second side and is connected to the first end. The first ferromagnetic plate is centered on the shaft axis and has a plurality of ferromagnetic teeth extending from the first side and in a first direction parallel to the shaft. The second ferromagnetic plate has a first side and a second side and is connected to the second end. The second ferromagnetic plate is centered on the shaft axis. The first and second ferromagnetic plates form a gap. The apparatus further includes a plurality of magnets having a magnetic field and a sensing device. The magnets are coupled to the first side of the second ferromagnetic plate. The sensing device is disposed within the gap for sensing a magnetic flux of the magnetic field.

摘要翻译： 一种装置测量轴的第一端和第二端之间的相对位移。 第一和第二端以轴的轴为中心。 该装置包括第一和第二铁磁板。 第一铁磁板具有第一侧和第二侧，并连接到第一端。 第一铁磁板以轴线为中心，并且具有多个从第一侧延伸的铁磁齿和平行于轴的第一方向。 第二铁磁板具有第一侧和第二侧，并连接到第二端。 第二铁磁板以轴的轴为中心。 第一和第二铁磁板形成间隙。 该装置还包括具有磁场和感测装置的多个磁体。 磁体与第二铁磁板的第一侧耦合。 感测装置设置在间隙内以感测磁场的磁通量。