公开(公告)号：US06373247B1

公开(公告)日：2002-04-16

申请号：US09530699

申请日：2000-04-03

申请人： Klaus Marx ,  Hartmut Kittel ,  Franz Jost ,  Martin Freitag

发明人： Klaus Marx ,  Hartmut Kittel ,  Franz Jost ,  Martin Freitag

IPC分类号： G01B714

CPC分类号： G01D5/145 ,  B82Y25/00 ,  G01B7/30 ,  G01R33/093

摘要： A magnetoresistive sensor element, in particular an angle sensor element, has a first, magnetic layer (3) whose direction of magnetization represents a reference direction, a second, nonmagnetic layer (2) formed on the first layer (3), a third magnetic layer (1), formed on the second layer (2), whose direction of magnetization can be varied by an external magnetic field, and an additional layer consisting of a current conductor (5) for selective orientation of the direction of magnetization of the first layer (3). A current flow direction of an electric current that passes through the current conductor (5) can be switched to change the magnetization direction of the first magnetic layer (3) to create different reference directions. An insulation layer (4) for galvanic separation of the first magnetic layer (3) from the additional layer (5) is also provided between them.

摘要翻译： 磁阻传感器元件，特别是角度传感器元件具有第一磁化层（3），其磁化方向表示参考方向，第二非磁性层（2）形成在第一层（3）上，第三磁体 形成在第二层（2）上的层（1），其磁化方向可以通过外部磁场变化，以及由电流导体（5）组成的附加层，用于选择性地取向第一 层（3）。 可以切换通过电流导体（5）的电流的电流流动方向，以改变第一磁性层（3）的磁化方向，以产生不同的参考方向。 在它们之间还设有用于将第一磁性层（3）与附加层（5）电隔离的绝缘层（4）。

公开(公告)号：US06433535B1

公开(公告)日：2002-08-13

申请号：US09530077

申请日：2000-04-20

申请人： Klaus Marx ,  Hartmut Kittel ,  Franz Jost

发明人： Klaus Marx ,  Hartmut Kittel ,  Franz Jost

IPC分类号： G01B714

CPC分类号： G01B7/00 ,  G01B7/14 ,  G01B7/30 ,  G01D5/16 ,  G01D5/18 ,  G01D5/20 ,  G01P3/487 ,  G01R33/06 ,  G01R33/07

摘要： An arrangement for detecting the angle of rotation of a rotatable element, in which, with evaluation of magnetically variable properties of a sensor arrangement, a first magnetic field, generated or varied by a rotatable element, is detectable in an evaluation circuit and usable for ascertaining the angle of rotation, wherein the sensor arrangement, utilizing the magnetoresistive effect, furnishes signals that can be associated unambiguously with one direction of the magnetic field Bext over a first angular range, in particular an angular range of 360°, having means to for is selective application of a magnetic auxiliary field BH the sensor arrangement, by means of which signals a modification of the signals that can be associated with the direction of the first magnetic field Bext, attainable for the sake of unambiguous association of an angle over a second angular range, in particular 360°.

摘要翻译： 用于检测可旋转元件的旋转角度的装置，其中通过评估传感器装置的磁性可变特性，由可旋转元件产生或改变的第一磁场，可在评估电路中检测并且可用于确定 旋转角度，其中利用磁阻效应的传感器装置提供可以在第一角度范围内，特别是360°的角度范围内明确地与磁场Bext的一个方向相关联的信号， 磁性辅助场BH选择性地施加传感器装置，传感器装置通过信号传递可以与第一磁场Bext的方向相关联的信号的修改，以便在第二角度上明确地关联角度 范围，特别是360°。

公开(公告)号：US06724184B1

公开(公告)日：2004-04-20

申请号：US09890367

申请日：2001-11-05

申请人： Klaus Marx ,  Hartmut Kittel

发明人： Klaus Marx ,  Hartmut Kittel

IPC分类号： G01R3312

CPC分类号： G01R33/02

摘要： A device and a method for determining a magnetic field with respect to its intensity and direction at at least one detection location, and uses a first arrangement for superimposing an auxiliary magnetic field, known at least in intensity, on the magnetic field, and a second arrangement for measuring at least the direction of the magnetic field resulting from the superimposition of the magnetic field to be determined and of the auxiliary magnetic field at the detection location. The magnetic field is determined at the detection location in that the resultant magnetic field produced by the magnetic field to be determined and the auxiliary magnetic field is determined with respect to its direction for at least two different auxiliary magnetic fields; and the magnetic field to be determined is calculated therefrom. The method is especially suited for determining the intensity and direction of a magnetic field in the immediate vicinity of the surface of a magnet.

摘要翻译： 一种用于在至少一个检测位置处相对于其强度和方向确定磁场的装置和方法，并且使用用于将至少在强度上已知的辅助磁场叠加在磁场上的第一装置和第二 用于至少测量由待确定的磁场和检测位置处的辅助磁场的叠加产生的磁场的方向的装置。 在检测位置处确定磁场，因为由待确定的磁场产生的合成磁场和关于其至少两个不同辅助磁场的方向的辅助磁场被确定; 由此计算要确定的磁场。 该方法特别适用于确定磁铁表面附近磁场的强度和方向。

公开(公告)号：US20060103381A1

公开(公告)日：2006-05-18

申请号：US10523252

申请日：2003-06-27

申请人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

发明人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

IPC分类号： G01B7/30

CPC分类号： B82Y25/00 ,  F01L1/00 ,  F01L2101/00 ,  F01L2820/041 ,  G01R33/093

摘要： A GMR sensor element is proposed, having a rotationally symmetrical positioning of especially eight GMR resistor elements which are connected to each other to form two Wheatstone's full bridges. This GMR sensor element is especially suitable for use in an angle sensor for the detection of the absolute position of the camshaft or the crankshaft in a motor vehicle, particularly in the case of a camshaft-free engine having electrical or electrohydraulic valve timing, of a motor position of an electrically commutated motor, or of detection of a windshield wiper position, or in the steering angle sensor system in motor vehicles.

摘要翻译： 提出了一种GMR传感器元件，具有特别是八个GMR电阻元件的旋转对称定位，它们彼此连接以形成两个惠斯通的全桥。 该GMR传感器元件特别适用于用于检测机动车辆中的凸轮轴或曲轴的绝对位置的角度传感器，特别是在具有电动或电动液压阀定时的无凸轮轴发动机的情况下 电动换向马达的电机位置，或者检测挡风玻璃刮水器位置，或者在机动车辆的转向角传感器系统中。

公开(公告)号：US20060152218A1

公开(公告)日：2006-07-13

申请号：US10535475

申请日：2003-10-09

申请人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

发明人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

IPC分类号： G01R33/02

CPC分类号： B82Y25/00 ,  G01R33/093

摘要： A magnetoresistive sensor element is provided, having a magnetoresistive layer system which, in top view, is at least regionally striated. The sensor element operates on the basis of the GMR effect and is constructed according to the spin valve principle, the striated layer system featuring a reference layer having a direction of magnetization substantially uninfluenced by a direction of an outer magnetic field acting on it. During operation, the sensor element provides a measuring signal which changes as a function of a measurement angle between the component of the field strength of the outer magnetic field lying in the plane of the layer system, and the direction of magnetization, and from which this measurement angle is able to be ascertained. In addition, observed in a top view of the striated layer system, the angle between the direction of magnetization in the absence of the outer magnetic field and the longitudinal direction of the striated layer system is set in such a way that in response to an influence of the outer magnetic field having a defined field strength, which is selected from a predefined work interval, the angle error of the layer system, as a function of this angle and the field strength, is minimal.

摘要翻译： 提供了一种磁阻传感器元件，具有磁阻层系统，其在顶视图中至少是区域性条纹化的。 传感器元件基于GMR效应进行操作，并且根据自旋阀原理构造，具有参考层的条纹层系统具有基本上不受作用在其上的外部磁场的方向的磁化方向的磁化方向。 在操作期间，传感器元件提供测量信号，该测量信号根据位于层系统的平面中的外部磁场的场强的分量与磁化方向之间的测量角度而变化，并且由此 可以确定测量角度。 此外，在条纹层系统的俯视图中观察到，在没有外磁场的磁化方向与条纹层系统的纵向方向之间的角度被设定为响应于影响 具有定义的场强的外部磁场，其从预定义的工作间隔中选择，层系统的角度误差作为该角度和场强的函数是最小的。

公开(公告)号：US07095596B2

公开(公告)日：2006-08-22

申请号：US10535475

申请日：2003-10-09

申请人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

发明人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： B82Y25/00 ,  G01R33/093

摘要： A magnetoresistive sensor element is provided, having a magnetoresistive layer system which, in top view, is at least regionally striated. The sensor element operates on the basis of the GMR effect and is constructed according to the spin valve principle, the striated layer system featuring a reference layer having a direction of magnetization substantially uninfluenced by a direction of an outer magnetic field acting on it. During operation, the sensor element provides a measuring signal which changes as a function of a measurement angle between the component of the field strength of the outer magnetic field lying in the plane of the layer system, and the direction of magnetization, and from which this measurement angle is able to be ascertained. In addition, observed in a top view of the striated layer system, the angle between the direction of magnetization in the absence of the outer magnetic field and the longitudinal direction of the striated layer system is set in such a way that in response to an influence of the outer magnetic field having a defined field strength, which is selected from a predefined work interval, the angle error of the layer system, as a function of this angle and the field strength, is minimal.

摘要翻译： 提供了一种磁阻传感器元件，具有磁阻层系统，其在顶视图中至少是区域性条纹化的。 传感器元件基于GMR效应进行操作，并且根据自旋阀原理构造，具有参考层的条纹层系统具有基本上不受作用在其上的外部磁场的方向的磁化方向的磁化方向。 在操作期间，传感器元件提供测量信号，该测量信号根据位于层系统的平面中的外部磁场的场强的分量与磁化方向之间的测量角度而变化，并且由此 可以确定测量角度。 此外，在条纹层系统的俯视图中观察到，在没有外磁场的磁化方向与条纹层系统的纵向方向之间的角度被设定为响应于影响 具有定义的场强的外部磁场，其从预定义的工作间隔中选择，层系统的角度误差作为该角度和场强的函数是最小的。

公开(公告)号：US07312609B2

公开(公告)日：2007-12-25

申请号：US10523252

申请日：2003-06-27

申请人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

发明人： Peter Schmollngruber ,  Ingo Herrmann ,  Henrik Siegle ,  Hartmut Kittel ,  Paul Farber ,  Ulrich May

IPC分类号： G01R33/09 ,  G01R33/02 ,  G01B7/30

CPC分类号： B82Y25/00 ,  F01L1/00 ,  F01L2101/00 ,  F01L2820/041 ,  G01R33/093

摘要： A GMR sensor element is proposed, having a rotationally symmetrical positioning of especially eight GMR resistor elements which are connected to each other to form two Wheatstone's full bridges. This GMR sensor element is especially suitable for use in an angle sensor for the detection of the absolute position of the camshaft or the crankshaft in a motor vehicle, particularly in the case of a camshaft-free engine having electrical or electrohydraulic valve timing, of a motor position of an electrically commutated motor, or of detection of a windshield wiper position, or in the steering angle sensor system in motor vehicles.

摘要翻译： 提出了一种GMR传感器元件，具有特别是八个GMR电阻元件的旋转对称定位，它们彼此连接以形成两个惠斯通的全桥。 该GMR传感器元件特别适用于用于检测机动车辆中的凸轮轴或曲轴的绝对位置的角度传感器，特别是在具有电动或电动液压阀定时的无凸轮轴发动机的情况下 电动换向马达的电机位置，或者检测挡风玻璃刮水器位置，或者在机动车辆的转向角传感器系统中。