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    • 1. 发明授权
    • Photoelectric device for position measuring
    • 用于位置测量的光电装置
    • US5111040A
    • 1992-05-05
    • US667885
    • 1991-03-12
    • Harald BernardAlfons Spies
    • Harald BernardAlfons Spies
    • G01D5/30G01B11/26G01D5/38
    • G01D5/38
    • The angular graduation of a graduated disk is scanned in a measuring device by a scanning unit by the movement of light beams in two angular graduation areas located diametrically opposite each other. To compensate for wobble errors caused by the wobbling of the graduated disk, the light beam emanating from a light source impinges on the graduated disk at a point outside of the angular graduation and, following reflection and deflection by a triple prism, impinges parallel to itself in the form of a light beam on an impact point in a first the graduation area. The light beam is split into two diffraction beams by the graduation, and meet, after having passed through a deflection prism, at a meeting point in a second angular graduation area. Since the impact point and the meeting point are always located on the same radius, the wobbling of the disk does not have a disadvantageous effect on the accuracy of measurement.
    • 通过扫描单元在测量装置中通过光束在彼此完全相对的两个角度刻度区域中的移动来扫描刻度盘的角度刻度。 为了补偿由刻度盘的摆动引起的摆动误差,从光源发出的光束在角度刻度之外的点处撞击刻度盘,并且在三棱镜反射和偏转之后,与自身平行地撞击 在第一个毕业区域的冲击点上以光束的形式。 光束通过刻度被分成两个衍射光束,并且在经过偏转棱镜之后,在第二角度刻度区域的会合点处相遇。 由于冲击点和汇合点总是位于相同的半径上,因此盘的摆动对测量精度没有不利影响。
    • 2. 发明授权
    • Error correction system for position measuring instruments
    • 位置测量仪器误差校正系统
    • US4490914A
    • 1985-01-01
    • US455604
    • 1983-01-04
    • Alfons Spies
    • Alfons Spies
    • G01B21/02G01B21/06G01D5/244G01B11/02
    • G01D5/24476G01D5/2448
    • An error correction system for correcting machine errors or division errors in a position measuring instrument for precision machines is disclosed. The system is usable, for example, in conjunction with instruments for measuring the relative position of two objects, wherein an incremental grid division formed on a measuring scale is scanned by a scanning unit to generate analog measurement signals. According to this invention, the scale defines additional correction tracks which extend along the scale, parallel to the division, and are scanned by additional scanning elements included in the scanning unit. These additional scanning elements operate to generate analog correction signals from the correction track. These analog correction signals are used to correct the analog measurement signals with respect to errors such as amplitude errors, phase angle errors, and zero crossing errors.
    • 公开了一种用于校正精密机械的位置测量仪器中的机器误差或分割误差的纠错系统。 该系统例如可以与用于测量两个物体的相对位置的仪器一起使用,其中由扫描单元扫描在测量尺上形成的增量栅格划分以产生模拟测量信号。 根据本发明,刻度尺定义了附加的校正轨道,其沿着刻度平行延伸,并且由包括在扫描单元中的附加扫描元件进行扫描。 这些附加的扫描元件用于从校正轨道产生模拟校正信号。 这些模拟校正信号用于校正关于诸如振幅误差,相位角误差和过零误差的误差的模拟测量信号。
    • 3. 发明授权
    • Arrangement and method for the automatic correction of error-containing
scanning signals of incremental position-measuring devices
    • 增量式位置测量装置的误差扫描信号的自动校正装置和方法
    • US5956659A
    • 1999-09-21
    • US47702
    • 1998-03-25
    • Alfons SpiesWolfgang Holzapfel
    • Alfons SpiesWolfgang Holzapfel
    • G01D5/30G01B21/00G01D5/244G01D5/245G01D5/36G01D5/38G06F11/00
    • G01D5/24476G01D5/2448G01D5/36G01D5/38
    • An arrangement as well as a method for the automatic correction of error-containing scanning signals, which contain defined deviations from the ideal signal shape, of incremental position measuring devices is disclosed, wherein an ideal signal shape is presupposed by a downstream arranged evaluation unit. In this case the scanning signals are supplied to a processor unit, and correcting values are determined by means of a correction algorithm which are converted in turn into appropriate control signals. The analog scanning signals as well as the control signals are supplied to a correction unit, which contains several adjustment possibilities for correcting the error-containing scanning signals by the control signals acting on them. The processor unit as well as the correction unit are arranged in such a way that scanning signals, which have already passed through the correction unit, are present at the input side of the processor unit.
    • 公开了一种用于自动校正包含与理想信号形状的定义偏差的误差含有扫描信号的增量位置测量装置的装置和方法,其中理想信号形状由下游布置的评估单元预先假定。 在这种情况下,扫描信号被提供给处理器单元,并且校正值通过校正算法确定,校正算法被转换成适当的控制信号。 模拟扫描信号以及控制信号被提供给校正单元,该校正单元包含通过作用在其上的控制信号来校正包含误差的扫描信号的几种调整可能性。 处理器单元以及校正单元被布置成使得已经通过校正单元的扫描信号存在于处理器单元的输入侧。
    • 9. 发明授权
    • Multiturn rotary encoder with multiple code carriers coupled by a reduction gear
    • 具有多个代码架的多圈旋转编码器,由减速齿轮联接
    • US06542088B1
    • 2003-04-01
    • US09674840
    • 2001-03-28
    • Steffen BielskiKurt FeichtingerAlfons SpiesErich StrasserJohann MitterreiterHermann MeyerAndreas Schroter
    • Steffen BielskiKurt FeichtingerAlfons SpiesErich StrasserJohann MitterreiterHermann MeyerAndreas Schroter
    • H03M122
    • G01D5/145G01B7/30G01D5/2458
    • A multi-turn rotary encoder that includes a first code carrier connected with an input shaft, a scanning device that scans the first code carrier and generates an absolute position of the input shaft within one revolution, and a digital code word is present at an output of the scanning device and a second code carrier for measuring the number of revolutions of the input shaft. A reduction gear is arranged between and coupled to the first and second code carriers. The second code carrier includes a magnetic body with at least one north and south pole and a substrate with a spatial arrangement of sensor elements integrated therein, which are sensitive to magnetic fields, is associated with the magnetic body. An evaluation circuit integrated into the substrate, wherein scanning signals, which are phase-shifted with respect to each other, from the sensor elements are supplied, and that the evaluation circuit combines the scanning signals in such a way that a second digital code word is present serially or in parallel at an output of the evaluation circuit. A combination logical device, which is supplied with the first and second digital code words and which forms a resultant multi-digit code word therefrom.
    • 一种多圈旋转编码器,包括与输入轴连接的第一代码载体,扫描装置,其扫描第一代码载体并在一圈内产生输入轴的绝对位置,并且数字代码字存在于输出端 的扫描装置和用于测量输入轴的转数的第二代码载体。 减速齿轮布置在第一和第二编码载体之间并耦合到第一和第二编码载体。 第二代码载体包括具有至少一个北极和南极的磁体,并且具有集成在其中的对磁场敏感的传感器元件的空间布置的基板与磁体相关联。 集成到基板中的评估电路被提供,其中相对于传感器元件相移的扫描信号被提供,并且评估电路将扫描信号组合成使得第二数字代码字为 在评估电路的输出处串行或并行存在。 一种组合逻辑装置,其被提供有第一和第二数字码字,并从中形成合成的多位代码字。
    • 10. 发明授权
    • Position measuring system
    • 位置测量系统
    • US6018881A
    • 2000-02-01
    • US990825
    • 1997-12-15
    • Alfons Spies
    • Alfons Spies
    • G01B7/00G01D5/14G01D5/16G01D5/244G01D5/245G01B7/14A45B3/08
    • G01D5/145
    • A position measuring system that includes a scale graduation and a scanning element, wherein the scanning element moves relative to the scale graduation along a measurement direction so as to generate position-dependent, intensity-modulated output signals. The scanning element includes a dynamic characteristic, which has saturation areas adjoining both sides of an at least partially approximately linear operating area, in which no significantly changed output signal results any more, even when the input signal changes. The scanning gap (d) between the scale graduation and the scanning element is selected in such a way that as the scanning element moves over its entire measurement range a modulation between maximum input signals, which are located in the saturation areas of the dynamic characteristic, takes place. In order to eliminate the distortions of the output signals which usually occur in this modulation area it is furthermore provided to perform signal filtering in order to remove, in particular, the third harmonic from the output signal.
    • 一种包括刻度和扫描元件的位置测量系统,其中所述扫描元件沿着测量方向相对于刻度刻度移动,以便产生位置相关的强度调制输出信号。 扫描元件包括动态特性,其具有邻近至少部分近似线性操作区域的两侧的饱和区域,其中即使当输入信号改变时,也不再产生显着改变的输出信号。 选择刻度刻度和扫描元件之间的扫描间隙(d),使得当扫描元件在其整个测量范围上移动时,位于动态特性的饱和区域中的最大输入信号之间的调制, 发生。 为了消除通常在该调制区域中发生的输出信号的失真,此外还提供为执行信号滤波,以便特别地从输出信号中去除三次谐波。