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公开(公告)号：US06505513B1
公开(公告)日：2003-01-14
申请号：US09483918
申请日：2000-01-18
IPC分类号： G01P1510
摘要： In an arrangement for measuring the rotational velocity of a rotatable wheel (21) at or in a vehicle (23) by means of a sensor (1) which is manufactured by a thin-film technology, which comprises magnetoresistive sensor elements (11, 12, 13, 14), and which measures a magnetic field modulated by means of a toothed structure (22) of the wheel (21) in dependence on the rotational velocity thereof, an optimized guidance of interference currents which may be induced through radiation from electromagnetic fields is achieved in that an electrically conducting layer (5) is provided at the outside of the sensor (1), which layer (5) reduces a capacitive coupling between the wheel (21) and the sensor elements (11, 12, 13, 14) which would occur without said layer (5), and which layer (5) in its turn is capacitively coupled to the wheel (21), in that the electrically conducting layer (5), which is made of a metal material, is manufactured by a thin-film technique at least at one side of the sensor (1) by means of layer deposition on an insulating layer (4) and has a layer thickness of approximately 0.2 to 3 &mgr;m, in that the electrically conducting layer (5) is electrically contacted outside the substrate (3) on which the sensor elements (11, 12, 13, 14) are built up, in that the electrical contacting (10) is provided by means not using the thin-film technology, and in that a coupling of the electrically conducting layer (5) to a reference potential is realized by means of said electrical contacting (10).
摘要翻译： 在用于通过薄膜技术制造的传感器（1）测量车辆（23）中或车辆（23）中或其中的可旋转轮（21）的旋转速度的装置中，其包括磁阻传感器元件（11,12 ，13,14），并且其根据其旋转速度测量通过轮（21）的齿形结构（22）调制的磁场，可以通过来自电磁辐射的干扰电流的优化引导 实现了在传感器（1）的外部设置导电层（5），该层（5）减小了轮（21）和传感器元件（11,12,13,13）之间的电容耦合， 14），其中没有所述层（5）将发生，并且哪个层（5）依次电容耦合到轮（21），因为由金属材料制成的导电层（5）是 至少在传感器的一侧通过薄膜技术制造（ 1）通过在绝缘层（4）上的层沉积，并且具有大约0.2至3μm的层厚度，其中导电层（5）电气接触到其上具有传感器元件（3）的基板（3） 11，12，13，14），其中电接触（10）由不使用薄膜技术的方式提供，并且实现导电层（5）与参考电位的耦合 借助于所述电接触（10）。
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公开(公告)号：US3991410A
公开(公告)日：1976-11-09
申请号：US564326
申请日：1975-04-02
申请人： August Petersen
发明人： August Petersen
CPC分类号： G11C27/00
摘要： A phase sensitive output circuit is used at an output of a piezoferroelectric storage element driven by an alternating voltage so that the storage range of the element is practically doubled.
摘要翻译： 在由交流电压驱动的压电电存储元件的输出处使用相敏输出电路，使得元件的存储范围实际上加倍。
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公开(公告)号：US3958230A
公开(公告)日：1976-05-18
申请号：US521587
申请日：1974-11-07
申请人： August Petersen
发明人： August Petersen
IPC分类号： H03B5/32 , G11C11/22 , G11C27/00 , H01L41/107 , H03H9/19
CPC分类号： G11C11/22 , G11C27/00 , H01L41/107
摘要： For reducing or preventing unwanted variations at adjacent storage electrodes upon polarization or depolarization of one of the storage electrodes on a PXE body a storage electrode terminating impedance is proposed of a special value.
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4.发明授权Arrangement for measuring a relative linear position between an angle sensor and magnetic body 失效用于测量角度传感器和磁体之间的相对线性位置的布置公开(公告)号：US06433537B1
公开(公告)日：2002-08-13
申请号：US09421648
申请日：1999-10-20
申请人： August Petersen
发明人： August Petersen
IPC分类号： G01B714
CPC分类号： G01D5/145
摘要： An arrangement for measuring a relative linear position between a sensor and a magnetic body, whose position relative to each other can be changed linearly in a predefined direction. The sensor is arranged as a magnetoresistive angle sensor, with little building expenditure and little sensitivity to external influences, and a magnetic strip is provided as the magnetic body, which strip includes a pair of magnetic poles and magnetic field lines running over its length at varying angles, so that the angle of the magnetic field penetrating the magnetoresistive angle sensor depends on the relative position of the magnetoresistive angle sensor to the magnetic strip and the relative position can be computed from the output signal of the magnetoresistive angle sensor.
摘要翻译： 用于测量传感器和磁体之间的相对线性位置的布置，其相对于彼此的位置可以沿预定方向线性地改变。 该传感器被布置为磁阻角传感器，具有很少的建筑物消耗并且对外部影响的灵敏度小，并且提供磁条作为磁体，该条带包括一对磁极和在其长度上变化的磁场线 使得穿透磁阻角传感器的磁场的角度取决于磁阻角传感器与磁条的相对位置，并且可以根据磁阻角传感器的输出信号来计算相对位置。
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公开(公告)号：US5602471A
公开(公告)日：1997-02-11
申请号：US401066
申请日：1995-03-08
申请人： Michael Muth , Volker Graeger , August Petersen
发明人： Michael Muth , Volker Graeger , August Petersen
CPC分类号： G01D5/145 , G01D5/24404
摘要： An angle sensor includes at least two angularly spaced sensor units which measure in a contactless manner and whose sensor voltages are similar but angularly shifted sinusoidal functions (sensor characteristic) of the angle .alpha. to be measured relative to a rotatable element and a processing circuit forms an angle sensor voltage which is a measure of the angle .alpha.. Using limited analog circuitry, a wide angular range is obtained and also a monotonously increasing angle sensor voltage which is dependent as linearly as possible on the angle to be measured, in that the sensor voltages are direct voltages which are constant in time. The processing circuit includes limiter circuits (15) whose input receives the sensor voltages (UMA, UMB), and whose output voltages exhibit values (10, 11) which remain constant when a limit value of the sensor voltages is exceeded, and that the output voltages of the limiter circuits (15) are applied to the input of a summing circuit (16) in order to form the angle sensor voltage.
摘要翻译： 角度传感器包括至少两个角度间隔的传感器单元，其以非接触方式测量，并且其传感器电压相似，但相对于可旋转元件而言，要测量的角度α的角度偏移正弦函数（传感器特性）和处理电路形成 角度传感器电压，它是角度α的度量。 使用有限的模拟电路，获得了广泛的角度范围，并且还提供了一个单调增加的角度传感器电压，该角度传感器电压在被测量角度上尽可能线性地相关，因为传感器电压是时间上恒定的直接电压。 处理电路包括限制器电路（15），其输入接收传感器电压（UMA，UMB），并且当超过传感器电压的极限值时，其输出电压呈现值（10,11），其保持恒定，并且输出 为了形成角度传感器电压，限制电路（15）的电压被施加到求和电路（16）的输入端。
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6.发明授权Angle sensor having lateral magnetic field sensor element and axial magnetic field direction measuring element for determining angular position 失效具有横向磁场传感器元件和用于确定角位置的轴向磁场方向测量元件的角度传感器
公开(公告)号：US6064197A
公开(公告)日：2000-05-16
申请号：US103730
申请日：1998-06-24
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。
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7.发明授权Arrangement with field correcting structure producing a homogeneous magnetic field at a sensor zone for detecting movement of a ferromagnetic element 失效在传感器区域产生均匀磁场的现场校正结构的布置，用于检测光学元件的运动
公开(公告)号：US5210489A
公开(公告)日：1993-05-11
申请号：US709666
申请日：1991-06-03
申请人： August Petersen
发明人： August Petersen
CPC分类号： G01V3/08
摘要： The invention relates to an arrangement (10) for detecting a moved ferromagnetic element (16) comprising a magnet (11), to which a sensor (14) is assigned on one of its pole faces (12) at a certain distance from the moved element (16). Such arrangements (10) are known, for example, for detecting the speed of a toothed wheel (16). In such known arrangements (10), the positioning of the sensor (14) on the magnet (11) is critical as far as offset voltages in the stationary condition should be avoided in order to obtain a high sensitivity. For an accurate positioning the magnet (11) of such an arrangement (10) has means for producing at least one magnetic imperfection for symmetrization and parallelization of a magnetic field (17) located in the direction of movement (A) of the moved element (16) and of a perpendicular to the pole face (12) for forming a mounting zone (24) free from sensor signal voltage for the sensor (14).
摘要翻译： 本发明涉及一种用于检测包括磁体（11）的移动的铁磁元件（16）的装置（10），传感器（14）在其一个极面（12）上以一定距离被分配到该磁体 元件（16）。 例如，这种布置（10）是已知的，用于检测齿轮（16）的速度。 在这种已知的布置（10）中，为了获得高灵敏度，传感器（14）在磁体（11）上的定位至关重要，只要静止状态下的偏移电压应被避免。 为了精确定位，这种装置（10）的磁体（11）具有用于产生至少一个磁性缺陷的装置，用于使位于移动元件的运动方向（A）的磁场（17）的对称和平行化（ 16）并且垂直于极面（12），用于形成没有用于传感器（14）的传感器信号电压的安装区（24）。
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8.发明授权
公开(公告)号：US5103171A
公开(公告)日：1992-04-07
申请号：US562526
申请日：1990-08-03
申请人： August Petersen
发明人： August Petersen
CPC分类号： G01P3/48
摘要： An adaptive revolution-measuring apparatus which includes a magnetic revolution sensor and an apparatus for comparing and evaluating the sensor signal of the revolution sensor to generate a digital output signal (U.sub.A) corresponding thereto, which despite large offset voltage tolerances and shifts uniquely identifies and evaluates the periodic sensor signal. The measuring apparatus contains a window comparator (17) with a controllable window as the apparatus for comparing which via at least one logic switching element (20, 21) drives a flip-flop (25) to produce the output signal (U.sub.A). Further apparatus are provided downstream of the window comparator which continuously generate corresponding reference voltages (U.sub.R1, U.sub.R2) for the window comparator as a function of the raised or lowered values of the sensor signal.
摘要翻译： 一种自适应旋转测量装置，其包括磁旋转传感器和用于比较和评估旋转传感器的传感器信号以产生与其相对应的数字输出信号（UA）的装置，其尽管大的偏移电压容限和偏移唯一地识别和评估 周期性传感器信号。 测量装置包含具有可控窗口的窗口比较器（17），用于比较通过至少一个逻辑开关元件（20,21）驱动触发器（25）以产生输出信号（UA）的设备。 在窗口比较器的下游设置有进一步的装置，其作为传感器信号的升高或降低的值连续地产生用于窗口比较器的相应参考电压（UR1，UR2）。
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