公开(公告)号：US06433545B1

公开(公告)日：2002-08-13

申请号：US09744570

申请日：2001-01-26

申请人： Jürgen Kunze ,  Gunter Schepp ,  Fritz Dettmann ,  Uwe Loreit

发明人： Jürgen Kunze ,  Gunter Schepp ,  Fritz Dettmann ,  Uwe Loreit

IPC分类号： G01B714

CPC分类号： G01R33/096 ,  G01R33/09

摘要： The invention relates to a method for evaluating signals while eliminating an interference signal on magnetoresistive sensor elements which is preferably proportional to the zero offset. The sensor elements can form a sensor element array such as a sensor bridge. According to the invention, the direction of magnetization of the sensor elements is modulated or shifted by applying a magnetic pulse field of a modulated or variable direction, and the output signals of the sensor elements or of the sensor element array are fed to a differential amplifier. Due to the modulation or shift of the operating voltage of the sensor bridge, the modulation or shift resulting at the same time as the magnetization of the sensor elements, a signal often arises which includes a direct component that is proportional to the magnetic field to be measured, and has an alternating component that is proportional to the offset voltage of the sensor element array. The latter is minimized by a feedback or is adjusted to zero. The bandwidth, with which the direct voltage that is proportional to the magnetic field to be measured can follow changes of the input signal, is greater in magnitude than the magnetization frequency of the sensor elements.

摘要翻译： 本发明涉及一种用于评估信号的方法，同时消除磁阻传感器元件上的干扰信号，其优选地与零偏移成比例。 传感器元件可以形成诸如传感器桥的传感器元件阵列。 根据本发明，通过施加调制方向或可变方向的磁脉冲来调制或偏移传感器元件的磁化方向，并将传感器元件或传感器元件阵列的输出信号馈送到差分放大器 。 由于传感器桥的工作电压的调制或移位，与传感器元件的磁化同时产生的调制或偏移通常产生，其包括与磁场成比例的直接分量 并且具有与传感器元件阵列的偏移电压成比例的交替分量。 后者通过反馈最小化或调整为零。 与被测量的磁场成比例的直流电压可以跟随输入信号的变化的带宽在幅度上大于传感器元件的磁化频率。

公开(公告)号：US5621377A

公开(公告)日：1997-04-15

申请号：US541823

申请日：1995-10-10

申请人： Fritz Dettmann ,  Uwe Loreit

发明人： Fritz Dettmann ,  Uwe Loreit

IPC分类号： G01R15/20 ,  G01R33/022 ,  G01R33/09 ,  H01L43/00

CPC分类号： G01R15/205 ,  G01R33/022 ,  G01R33/09 ,  G01R33/096

摘要： To measure magnetic field gradients is difficult because sensor elements available for this have only a limited linearity range due to their sensitivity which is strongly dependent on the temperature and on auxiliary-field magnetic fields and furthermore this sensitivity has a significant sample dispersion. Whereas now the arrangement of a a Wheatstone bridge with magnetoresistive resistors is such that on the one hand two symmetrical areas are provided, in each area of which a resistor of a bridge branch is arranged, and that moveover all other building elements are also designed with a high degree of symmetry. With this a symmetrical temperature gradient is created in the sensor chip, which gradient does not influence the output signal of the bridge. A temperature-dependent zero-point drift does also not exist. The changeable resistor needed for trimming is as the single singular structural part directly arranged on the central axis and also does not interfere with the measurement. The arrangement is particularly suited for the potential-free measurement of the current intensities.

摘要翻译： 为了测量磁场梯度是困难的，因为可用于其的传感器元件仅具有有限的线性范围，这是由于它们的灵敏度强烈依赖于温度和辅助场磁场，此外，该灵敏度具有显着的样品分散。 而现在，具有磁阻电阻器的惠斯通电桥的布置使得一方面提供了两个对称的区域，其中布置有桥接支路的电阻器的每个区域中，并且所有其它构建元件的移动也被设计为具有 高对称度。 由此，在传感器芯片中产生对称的温度梯度，该梯度不影响桥的输出信号。 温度依赖的零点漂移也不存在。 修整所需的可变电阻器是直接布置在中心轴上的单个单一结构部件，也不会干扰测量。 该装置特别适用于电流强度的无电位测量。

公开(公告)号：US5719494A

公开(公告)日：1998-02-17

申请号：US543194

申请日：1995-10-13

申请人： Fritz Dettmann ,  Uwe Loreit ,  Jurgen Kunze ,  Karl-Heinz Lust

发明人： Fritz Dettmann ,  Uwe Loreit ,  Jurgen Kunze ,  Karl-Heinz Lust

IPC分类号： G01R19/00 ,  G01R33/022 ,  G01R33/09 ,  H01L43/08 ,  G01R33/00 ,  G01R33/02

CPC分类号： G01R33/09 ,  G01R33/022 ,  G01R33/096

摘要： A sensor assembly for measuring current I.sub.o is disclosed. The sensor assembly includes four magnetoresistive resistors (1, 2, 3, 4) arranged to form a Wheatstone bridge. The bridge is disposed over a U shaped conductor 14. The resistors are arranged so that two resistors (1,2) forming one bridge branch are disposed over one leg of the conductor and the two resistors (3,4) forming the other bridge branch are disposed over the other leg of the conductor. Each resistor is formed out of a number of magnetoresistive strips (1', 2', 3', 4'). The magnetoresistive strips forming the individual bridge branch resistors are interleaved so as to ensure the resistors forming each bridge branch have substantially the same temperature. When current I.sub.o is applied to the conductor, the equal and opposite magnetic fields that develop around the individual bridge branches cause the Wheatstone bridge to produce a signal U.sub.a that is a function of the current.

摘要翻译： 公开了一种用于测量电流Io的传感器组件。 传感器组件包括布置成形成惠斯通电桥的四个磁阻电阻器（1,2,3,4）。 该桥被设置在U形导体14之上。电阻器被布置成使得形成一个桥接支路的两个电阻器（1,2）设置在导体的一个支路上，并且两个电阻器（3,4）形成另一个桥接支路 被布置在导体的另一条腿上。 每个电阻器由多个磁阻条（1'，2'，3'，4'）形成。 形成单个桥式分支电阻器的磁阻条被交错，以确保形成每个桥接支路的电阻具有基本上相同的温度。 当电流Io施加到导体时，围绕各个桥接支路产生的相等和相反的磁场使得惠斯通电桥产生作为电流的函数的信号Ua。

公开(公告)号：US5521501A

公开(公告)日：1996-05-28

申请号：US374795

申请日：1995-01-31

申请人： Fritz Dettmann ,  Uwe Loreit

发明人： Fritz Dettmann ,  Uwe Loreit

IPC分类号： G01R33/022 ,  G01R17/12 ,  G01R33/09 ,  H01L43/08 ,  G01R33/02 ,  G01B7/14 ,  H01L43/02

CPC分类号： G01R33/096 ,  G01R33/09

摘要： Described is a sensor based on the magnetoresistive effect and integrated into the thin-film arrangement of a remagnetization line in the form of a meander. In an adaptation to this meandering structure, the magnetoresistive film strips are provided in regions with alternating positive- and negative-inclined Barber pole structures. When periodic remagnetization of the regions takes place, a drift-free AC voltage is obtained as a sensor output signal. This lack of drift is the presupposition for the use of the magnetic field sensor for precise measurement of weak magnetic fields.

摘要翻译： PCT No.PCT / EP94 / 01789 Sec。 371日期1995年1月31日 102（e）日期1995年1月31日PCT 1994年5月31日PCT公布。 公开号WO94 / 29740 日期1994年12月22日。描述了一种基于磁阻效应的传感器，并且以蜿蜒形式集成到再磁化线的薄膜布置中。 在适应这种曲折结构的情况下，磁阻膜条被提供在具有交替的正和负倾斜理发杆结构的区域中。 当发生区域的周期性再磁化时，获得无漂移的交流电压作为传感器输出信号。 这种缺乏漂移是使用磁场传感器精确测量弱磁场的前提。

公开(公告)号：US06545463B1

公开(公告)日：2003-04-08

申请号：US09936886

申请日：2001-09-10

申请人： Fritz Dettmann ,  Uwe Loreit ,  Heike Bischoff ,  Hilmar Dohles

发明人： Fritz Dettmann ,  Uwe Loreit ,  Heike Bischoff ,  Hilmar Dohles

IPC分类号： G01B714

CPC分类号： G01D5/145 ,  G01D5/2492

摘要： In at least one measuring rod of the length measurement system the direction of magnetization lies in the plane of its cross-section which is perpendicular to the direction of measurement and forms a magnetization pattern. In the simplest case the magnetization of the cross-section is homogeneous. As one advances in the direction of measurement the magnetization pattern is increasingly rotated in relation to the starting end of the measuring rod. This magnetization results in a magnetic field whose direction is also continuously rotated as one advances in the direction of measurement. By means of at least one magnetic field sensor which responds to the direction of the magnetic field the prevailing field angle for each position is determined and can be clearly assigned to the position for a multitude of different variants of the length measurement system.

摘要翻译： 在长度测量系统的至少一个测量棒中，磁化方向位于其垂直于测量方向的横截面的平面中并形成磁化模式。 在最简单的情况下，横截面的磁化是均匀的。 随着测量方向的进展，磁化模式相对于测量杆的起始端逐渐旋转。 这种磁化导致当测量方向前进时其方向也连续旋转的磁场。 通过响应于磁场方向的至少一个磁场传感器，确定每个位置的主要场角，并且可以将其明确地分配给长度测量系统的多个不同变体的位置。

公开(公告)号：US06850139B1

公开(公告)日：2005-02-01

申请号：US09936087

申请日：2000-03-03

申请人： Fritz Dettmann ,  Uwe Loreit ,  Carsten Möller ,  Torsten Schönbach

发明人： Fritz Dettmann ,  Uwe Loreit ,  Carsten Möller ,  Torsten Schönbach

IPC分类号： G01D5/245 ,  H01F13/00

CPC分类号： H01F13/003

摘要： The invention relates to a system for pulse magnetizing high-precision magnetic scales. The system comprises a shaped current conductor (1) and a pulse current source (2) that is composed of a capacitor bank (3), a transfer switch (4) and a control unit (5). The compact set-up of the system is the prerequisite for a power circuit that has such a low resistance that the required high pulse currents are obtained at supply voltages of below 60 V. The transfer switch is an H bridge with four switches (7) that contain equal numbers of MOS transistors connected in parallel. The short pulse times that are achieved using the MOS transistors allow the use of shaped current conductors with which magnetized areas can be produced with a very high precision. The inventive system provides a means for saving components, electric power and time by a factor of up to 100.

摘要翻译： 本发明涉及一种脉冲磁化高精度磁标度的系统。 该系统包括由电容器组（3），转换开关（4）和控制单元（5）组成的成形电流导体（1）和脉冲电流源（2）。 系统的紧凑设置是具有如此低电阻的电源电路的先决条件，在低于60V的电源电压下获得所需的高脉冲电流。转换开关是具有四个开关（7）的H桥， 其包含相等数量的并联的MOS晶体管。 使用MOS晶体管实现的短脉冲时间允许使用可以以非常高的精度制造磁化区域的成形电流导体。 本发明的系统提供了将部件，电力和时间节省高达100倍的装置。

公开(公告)号：US20130320972A1

公开(公告)日：2013-12-05

申请号：US13982508

申请日：2011-02-03

申请人： Uwe Loreit ,  Sebastian Weber

发明人： Uwe Loreit ,  Sebastian Weber

IPC分类号： G01R33/09

CPC分类号： G01R33/096 ,  B82Y25/00 ,  G01R31/318516 ,  G01R33/0011 ,  G01R33/0017 ,  G01R33/093 ,  G01R33/098

摘要： The present invention relates to a magnetic field sensing device (50) comprising several functionally different layers (38, 60, 70), wherein a Wheatstone bridge layer (70) comprises at least two resistors (20) of a Wheatstone bridge (18), each resistor (20) comprises at least one magnetic field sensing element (10) in the form of a resistor subelement (22), and a flip conductor layer (38) comprising at least one flip conductor (30) for flipping the internal magnetization state of each magnetic field sensing element (10). The flip conductor (30) comprises a plurality of conductor stripes (32) being arranged on at least two different flip conductor sublayers (38-1, 38-2) of said flip conductor layer (38) and being electrically coupled with each other through vias.The multilayer arrangement of said flip conductor (30) provides a compact design of said magnetic field sensing device (50), such that a decreased power consumption, decreased inductance and improved sensitivity of the magnetic field sensing device can be achieved.

摘要翻译： 本发明涉及包括几个功能不同的层（38,60,70）的磁场感测装置（50），其中惠斯登电桥层（70）包括惠斯通电桥（18）的至少两个电阻器（20） 每个电阻器（20）包括形成电阻子元件（22）的至少一个磁场感测元件（10）和包括用于翻转内部磁化状态的至少一个翻盖导体（30）的翻盖导体层（38） 的每个磁场感测元件（10）。 翻盖导体（30）包括多个导体条（32），布置在所述翻转导体层（38）的至少两个不同的翻转导体子层（38-1,38-2）上，并且彼此通过 通孔 所述翻转导体（30）的多层布置提供了所述磁场感测装置（50）的紧凑设计，使得可以实现磁场感测装置的功耗降低，电感降低和灵敏度的提高。

公开(公告)号：US20120019240A1

公开(公告)日：2012-01-26

申请号：US13142366

申请日：2009-12-30

申请人： Günter Müller ,  Harald Waltenberger ,  Markus Dickerhof ,  Ulrich Gengenbach ,  Herbert Seemann ,  Josef Gentischer ,  Andreas Glathe ,  Karl Harter ,  Michael Lorenz ,  Jochen Schmitt ,  Uwe Loreit ,  Uwe Brenk ,  Andreas Hütten

发明人： Günter Müller ,  Harald Waltenberger ,  Markus Dickerhof ,  Ulrich Gengenbach ,  Herbert Seemann ,  Josef Gentischer ,  Andreas Glathe ,  Karl Harter ,  Michael Lorenz ,  Jochen Schmitt ,  Uwe Loreit ,  Uwe Brenk ,  Andreas Hütten

IPC分类号： G01R33/02

CPC分类号： G01N33/54326 ,  G01N35/0098 ,  G01N2035/00891

摘要： The present invention is directed to a device for quantitative analysis of an analyte in a liquid sample by detecting a magnetic label, an instrument for controlling the analysis process and displaying the results and a method for performing said analysis with said device and said instrument.

摘要翻译： 本发明涉及一种用于通过检测磁性标签来定量分析液体样品中的分析物的装置，用于控制分析过程并显示结果的仪器以及用所述装置和所述仪器执行所述分析的方法。

公开(公告)号：US20070040355A1

公开(公告)日：2007-02-22

申请号：US10568851

申请日：2004-08-19

申请人： Joachim Spratte ,  Uwe Loreit

发明人： Joachim Spratte ,  Uwe Loreit

IPC分类号： B60D1/06

CPC分类号： F16C11/0642 ,  B60G7/005 ,  B60G17/015 ,  B60G2204/11 ,  B60G2204/1162 ,  B60G2204/416 ,  B60G2400/00 ,  F16C11/0604 ,  F16C11/0633 ,  F16C41/007 ,  F16C2326/05

摘要： A ball and socket joint with integrated angle sensor, especially for use as a vehicle level control in the chassis of a motor vehicle. The ball and socket joint has a ball and socket joint housing (1), a ball pivot (2) mounted in the ball and socket joint housing (1), a bipolar field transducer (4) arranged at the joint ball (3) of the ball pivot (2), and at least one magnetic field direction sensor (5), which is arranged at the ball and socket joint housing (1) and interacts with the magnetic field generated by the field transducer (4), wherein only one pole of the bipolar field transducer (4) is arranged on the surface of the ball.

摘要翻译： 具有集成角度传感器的球窝接头，特别用作机动车底盘中的车辆液位控制。 所述球窝接头具有球窝接头壳体（1），安装在所述球窝接头壳体（1）中的球轴（2），布置在所述接头球（3）处的双极场传感器（4） 球枢轴（2）和至少一个磁场方向传感器（5），其布置在球窝接头壳体（1）处并与由场传感器（4）产生的磁场相互作用，其中仅一个 双极场传感器（4）的极设置在球的表面上。

公开(公告)号：US6011390A

公开(公告)日：2000-01-04

申请号：US973608

申请日：1997-12-11

申请人： Uwe Loreit ,  Fritz Dettman ,  Wulf Andra

发明人： Uwe Loreit ,  Fritz Dettman ,  Wulf Andra

IPC分类号： G01D5/14 ,  G01D5/16 ,  G01R33/09 ,  G01B7/30

CPC分类号： G01D5/145 ,  G01R33/09

摘要： An arrangement for a magnetoresistive sensor chip has two Wheatstone brid to determine the sine and cosine of the angle formed between a chip edge and the direction of the magnetic field. All resistances of the bridges consist of a plurality of magnetoresistive laminated elements (2) with current connections made of highly conductive thin films with parallel edges. When the resistances of a bridge are directly electrically interconnected, these edges form angles (5) of 90.degree. each. The parallel edges of the corresponding resistances of the sine and cosine bridges are mutually offset by 45.degree.. The magnetoresistive laminated elements (2) are distributed on the chip surface to reduce angle measurement errors to a minimum. Also disclosed are arrangements that allow the sensor chips to be used for measuring angles and positions.

摘要翻译： PCT No.PCT / EP96 / 02538 Sec。 371 1997年12月11日第 102（e）1997年12月11日PCT PCT 1996年6月11日PCT公布。 公开号WO97 / 00426 日期1997年1月3日磁阻传感器芯片的布置有两个惠斯登电桥，以确定芯片边缘与磁场方向之间形成的角度的正弦和余弦。 桥的所有电阻由多个具有由具有平行边缘的高导电薄膜制成的电流连接的磁阻叠层元件（2）组成。 当桥的电阻直接电互连时，这些边形成90°的角度（5）。 正弦和余弦桥的相应电阻的平行边缘相互偏移45°。 磁阻层压元件（2）分布在芯片表面上，以将角度测量误差降至最低。 还公开了允许传感器芯片用于测量角度和位置的布置。