公开(公告)号：US06278389B1

公开(公告)日：2001-08-21

申请号：US09211926

申请日：1998-12-15

申请人： Hans-Ulrich Lochmann ,  Stefan Pusch

发明人： Hans-Ulrich Lochmann ,  Stefan Pusch

IPC分类号： H03M106

CPC分类号： G01P21/02

摘要： A sensor arrangement comprising two sensors (1, 2) and processing unit (16) for deriving a measurement signal (M1, M2) from two sensor signals (S1, S2) which are each supplied by one sensor (1, 2). Such a sensor arrangement may comprise for example two angular-position sensors which measure the angular position of a measurement object with respect to the sensor arrangement. According to the invention, in order to enable detection of errors occurring in such a sensor arrangement, particularly at the input of the processing unit (16) during the conversion of the sensor signals in the A/D converter units (3, 4), switching means (11, 12) have been provided for switching to two switching states in such manner that in each switching state a sensor signal (S1, S2) is applied to each of the A/D converter units (3, 4) and that the allocation of the sensor signals (S1, S2) to the A/D converter units (3, 4) is different in the two switching states, and the processing unit (16) is constructed to derive an error signal (F) from two measurement signals (M1, M2) determined during each time one switching state.

摘要翻译： 一种传感器装置，包括两个传感器（1,2）和处理单元（16），用于从两个传感器信号（S1，S2）导出由一个传感器（1,2）提供的测量信号（M1，M2）。 这种传感器装置可以包括例如测量测量对象相对于传感器装置的角位置的两个角位置传感器。 根据本发明，为了能够检测在A / D转换器单元（3,4）中的传感器信号的转换期间，特别是在处理单元（16）的输入处，在这种传感器装置中发生的错误， 已经提供了切换装置（11,12），以便在每个切换状态下将传感器信号（S1，S2）施加到每个A / D转换器单元（3,4）的方式切换到两个切换状态，并且 传感器信号（S1，S2）到A / D转换器单元（3,4）的分配在两种切换状态下是不同的，并且处理单元（16）被构造成从两个方向导出误差信号（F） 在每次切换状态期间确定测量信号（M1，M2）。

公开(公告)号：US6064197A

公开(公告)日：2000-05-16

申请号：US103730

申请日：1998-06-24

申请人： Hans-Ulrich Lochmann ,  August Petersen

发明人： Hans-Ulrich Lochmann ,  August Petersen

IPC分类号： G01B7/00 ,  G01B7/30 ,  G01D5/14 ,  G01D5/16 ,  G01D5/18

CPC分类号： G01D5/145 ,  G01B7/30

摘要： An angle sensor includes a lateral magnetic field sensor element (1) for producing a sensor signal (U.sub.S) which is dependent on the angular position of a target object (6) which is rotatable about an axis of rotation (5). The lateral magnetic field (8) is produced by a magnet (4) which also produces an axial magnetic field (7). Magnetic field sensor elements have a linear characteristic only over an angular range of up to at most 180.degree.. According to the invention, however, in addition to the field sensor element (1) there is also provided a measuring element (2) which determines the direction of an axial magnetic field (7) also produced by magnet (4) and which traverses the measuring element (2). An evaluation circuit (9) is thereby enabled to determine the angular position of the target object (6) from the sensor signal (U.sub.S) produced by the magnetic field sensor element (1) and the direction signal (U.sub.R) produced by the additional measuring element (2), which determination can be performed over an angular range exceeding 180.degree..

摘要翻译： 角度传感器包括用于产生传感器信号（US）的横向磁场传感器元件（1），该传感器信号取决于可围绕旋转轴线（5）旋转的目标物体（6）的角位置。 横向磁场（8）由也产生轴向磁场（7）的磁体（4）产生。 磁场传感器元件只能在高达180度的角度范围内具有线性特性。 然而，根据本发明，除了现场传感器元件（1）之外，还设置有测量元件（2），其确定也由磁体（4）产生的轴向磁场（7）的方向，并且横向穿过 测量元件（2）。 因此，评估电路（9）能够根据由磁场传感器元件（1）产生的传感器信号（US）和通过附加测量产生的方向信号（UR）来确定目标对象（6）的角位置 元件（2），可以在超过180度的角度范围内进行确定。