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    MAGNETIC ENCODER APPARATUS
    1.
    发明公开
    MAGNETIC ENCODER APPARATUS 有权
    MAGNETISCHER CODIERER

    公开(公告)号：EP2823260A1

    公开(公告)日：2015-01-14

    申请号：EP13711727.1

    申请日：2013-03-06

    申请人： Renishaw PLC ,  RLS Merilna tehnika d.o.o.

    发明人： KOGEJ, Peter ,  OGRIN, Aljaz ,  DOLSAK, Gregor ,  HAJDINJAK, Blaz

    IPC分类号： G01D5/14 ,  G01D5/244

    CPC分类号： G01D5/12 ,  G01D5/24409 ,  G01D5/2458

    摘要： Magnetic encoder apparatus (2) is described that comprises a plurality of magnetic sensor elements (e.g. Hall sensors) for reading an associated magnetic scale (4; 10) that produces a periodically repeating magnetic pattern. The plurality of magnetic sensor elements produce a plurality of sensor signals and an analyser (7) is provided for analysing the plurality of sensor signals to provide a measure of the position of the magnetic sensor elements relative to the associated magnetic scale (4; 10). The analyser (7) is arranged to use the plurality of sensor signals to assess the period (60) of the periodically repeating magnetic pattern sensed by the plurality of magnetic sensor elements. In this manner, the requirement to carefully match the period of the sensor elements with the periodically repeating magnetic pattern of the associated magnetic scale (4; 10) is avoided.

    摘要翻译： 提出了一种磁性编码器装置，其包括用于读取产生周期性重复的磁性图案的相关磁标度的多个磁性传感器元件（例如霍尔传感器）。 多个磁传感器元件产生多个传感器信号，并且提供分析器用于分析多个传感器信号以提供磁传感器元件相对于相关磁标尺的位置的量度。 分析器布置成使用多个传感器信号来评估由多个磁传感器元件感测到的周期性重复磁图案的周期。 以这种方式，避免了将传感器元件的周期与相关磁标度的周期性重复的磁性图案仔细地匹配的要求。

    ENCODER READHEAD
    2.
    发明授权
    ENCODER READHEAD 有权
    编码器读取

    公开(公告)号：EP2404142B1

    公开(公告)日：2017-08-09

    申请号：EP10712744.1

    申请日：2010-03-01

    申请人： RLS Merilna Tehnika D.O.O. ,  Renishaw PLC

    发明人： DOLSAK, Gregor ,  OGRIN, Aljaz ,  JANEZIC, Matjaz

    IPC分类号： G01D5/249

    CPC分类号： G01D5/2492

    摘要： A readhead is provided for reading an absolute scale, optionally a passive magnetic scale, that encodes a series of data bits. The readhead includes a plurality of sensors, such as an array of Hall sensors, for producing a plurality of sensor signals. A plurality of signal combiners are also provided to receive at least two of the sensor signals and produce therefrom a combined sensor signal. A plurality of data bit extractors are arranged to receive at least two combined sensor signals and to determine the value of a data bit encoded in an associated absolute scale. The readhead also comprises an incremental signal generator for generating at least one incremental signal from the combined sensor signals produced by a plurality of the signal combiners. In this manner, both absolute and incremental position is measured.

    摘要翻译： 提供读取头用于读取编码一系列数据位的绝对标度，可选地为无源磁标尺。 读取头包括多个传感器，例如霍尔传感器阵列，用于产生多个传感器信号。 还提供了多个信号组合器以接收至少两个传感器信号并由此产生组合的传感器信号。 多个数据比特提取器被布置为接收至少两个组合的传感器信号并且确定以相关联的绝对比例编码的数据比特的值。 读取头还包括增量信号发生器，用于从由多个信号组合器产生的组合的传感器信号中产生至少一个增量信号。 以这种方式，测量绝对位置和增量位置。

    ENCODER READHEAD APPARATUS
    5.
    发明公开
    ENCODER READHEAD APPARATUS 有权
    LESEKOPFVORRICHTUNG EINES KODIERERS

    公开(公告)号：EP2661607A1

    公开(公告)日：2013-11-13

    申请号：EP12701259.9

    申请日：2012-01-06

    申请人： RLS Merilna Tehnika D.O.O. ,  Renishaw Plc.

    发明人： SIVEC, Matjaz ,  OGRIN, Aljaz ,  KOGEJ, Peter

    IPC分类号： G01D5/347

    CPC分类号： G01D5/145 ,  G01D5/34753

    摘要： The present invention relates to an encoder readhead (4;80;1 10). The readhead comprises a housing (6;82) having an opening ( 18) for capturing an encoder scale (2; 124) comprising an elongate rod having a substantially circular cross-section, the opening (18) defining an axial direction along which a captured encoder scale (2; 124) can slide back and forth. A scale reader ( 10), which may comprise an array of Hall sensors, is provided for reading a portion of an encoder scale (2; 124) located in the opening (18). The housing (6;82) includes an access portion (30) that allows the encoder scale (2; 124) to be inserted into, and/or removed from, the opening (18) by a relative movement between the housing (6;82) and the encoder scale (2; 124) in a direction other than the axial direction.

    摘要翻译： 编码器读头技术领域本发明涉及一种编码器读头。 读取头包括具有用于捕获编码器刻度尺的开口的壳体，该开口用于包括具有基本圆形横截面的细长杆，所述细长杆具有基本上圆形的横截面，所述开口限定了被捕获的编码器尺度可沿着该方向前后滑动的 提供了可以包括霍尔传感器阵列的缩放读取器，用于读取位于开口中的编码器刻度的一部分。 壳体包括允许编码器标尺通过外壳和编码器标尺之间沿轴向方向以外的相对运动而插入和/或从该开口移除的入口部分。

    ENCODER READHEAD
    6.
    发明公开
    ENCODER READHEAD 有权
    编码器读取

    公开(公告)号：EP2404142A1

    公开(公告)日：2012-01-11

    申请号：EP10712744.1

    申请日：2010-03-01

    申请人： RLS Merilna Tehnika D.O.O. ,  Renishaw PLC

    发明人： DOLSAK, Gregor ,  OGRIN, Aljaz ,  JANEZIC, Matjaz

    IPC分类号： G01D5/249

    CPC分类号： G01D5/2492

    摘要： A readhead is provided for reading an absolute scale, optionally a passive magnetic scale, that encodes a series of data bits. The readhead includes a plurality of sensors, such as an array of Hall sensors, for producing a plurality of sensor signals. A plurality of signal combiners are also provided to receive at least two of the sensor signals and produce therefrom a combined sensor signal. A plurality of data bit extractors are arranged to receive at least two combined sensor signals and to determine the value of a data bit encoded in an associated absolute scale. The readhead also comprises an incremental signal generator for generating at least one incremental signal from the combined sensor signals produced by a plurality of the signal combiners. In this manner, both absolute and incremental position is measured.

    摘要翻译： 描述读取头（6; 76）用于读取编码一系列数据位的绝对标尺（4; 40; 50; 80），可选地为无源磁尺。 读取头包括多个传感器，例如用于产生多个传感器信号（H）的霍尔传感器（30; 82）的阵列。 还提供多个信号组合器（84）以接收至少两个传感器信号并由此产生组合的传感器信号（S）。 多个数据比特提取器（86）被布置为接收至少两个组合的传感器信号（S）并且确定以相关绝对比例（4; 40; 50; 80）编码的数据比特的值。 读取头（6; 76）还包括增量信号发生器（88,90），用于从由多个信号组合器（84）产生的组合传感器信号（S）中产生至少一个增量信号（Sin / Cos）。 以这种方式，测量绝对位置和增量位置。