公开(公告)号：US08745108B2

公开(公告)日：2014-06-03

申请号：US12633697

申请日：2009-12-08

申请人： Bjorn E. B. Jansson

发明人： Bjorn E. B. Jansson

IPC分类号： G06F13/00 ,  G06F15/02

CPC分类号： G06F15/02 ,  G01B3/205

摘要： A multimode electronic measuring instrument is provided that includes a ratiometric mode of operation. During the ratiometric mode, a desired dimension is established as a stored reference dimension Xref. After the reference dimension is stored in memory, subsequent ratiometric measurement readouts will equal a current measurement distance Xcurr divided by the reference dimension Xref. A persistent number of decimal places used to the right of the decimal point as seen on a display is determined based on a current reference dimension Xref, an increment used for the least significant digit, and an internal measurement resolution of the multimode electronic measuring instrument.

摘要翻译： 提供了一种多模式电子测量仪器，其包括比例计算操作模式。 在比例模式期间，建立期望的维度作为存储的参考维度Xref。 在将参考尺寸存储在存储器中之后，随后的比例测量读数将等于当前测量距离Xcurr除以参考尺寸Xref。 基于当前参考尺寸Xref，用于最低有效位的增量和多模式电子测量仪器的内部测量分辨率，确定在显示器上看到的小数点右侧的持续数字的小数位数。

公开(公告)号：US06639529B1

公开(公告)日：2003-10-28

申请号：US10146437

申请日：2002-05-14

申请人： Bjorn E. B. Jansson

发明人： Bjorn E. B. Jansson

IPC分类号： H03M110

CPC分类号： G01D5/24452 ,  G01D5/2449 ,  H03M1/1009 ,  H03M1/24

摘要： Systems and methods are provided for calibrating a sample delay time between a position request time from a host computer and a position encoder sample time. The position encoder includes a readhead with a transducer and transducer electronics, and encoder interface electronics which exchange data and commands with the readhead and with the host computer. The transducer electronics may lack a clock capable providing a sufficiently consistent sample delay time. To provide a consistent sample delay the interface electronics measures an inherent sample delay time based on signals from the readhead during a calibration mode. The difference between the inherent delay time and the desired delay time is saved and inserted by the interface electronics during position measurement such that the calibrated sample delay time is consistently the desired sample delay time.

摘要翻译： 提供了用于校准来自主计算机的位置请求时间与位置编码器采样时间之间的采样延迟时间的系统和方法。 位置编码器包括具有换能器和换能器电子装置的读取头以及与读取头和主计算机交换数据和命令的编码器接口电子装置。 传感器电子器件可能缺少能够提供足够一致的采样延迟时间的时钟。 为了提供一致的采样延迟，接口电子装置在校准模式期间基于来自读取头的信号测量固有采样延迟时间。 在位置测量期间，固有的延迟时间和期望的延迟时间之间的差别被接口电子器件保存和插入，使得经校准的采样延迟时间一直是期望的采样延迟时间。

公开(公告)号：US07852969B2

公开(公告)日：2010-12-14

申请号：US11830684

申请日：2007-07-30

申请人： Bjorn E. B. Jansson

发明人： Bjorn E. B. Jansson

IPC分类号： H04L27/36

CPC分类号： G01D5/2449 ,  G01D5/24452

摘要： A system and method for real time calibration of a quadrature encoder. Errors from sources such as signal offsets, amplitude mismatches and phase errors are addressed. In one embodiment, the errors are addressed by determining and applying a dynamic operational set of calibration parameters. The process for determining the operational calibration parameters involves minimizing a variation metric that indicates the variations of the magnitudes of a set of corrected vectors Ci″. The corrected vectors Ci″ are defined by using the calibration parameters to provide corrected vector components (Ati″, Bti″) that correspond to a current operational set of quadrature signal samples comprising at least four respective quadrature signal samples (Ati, Bti) having spatial phase angles θti that are distributed over a significant portion of 360 degrees. For well chosen calibration parameters, the resulting corrected vectors define a well-centered circle and the variation metric is minimized.

摘要翻译： 一种用于正交编码器实时校准的系统和方法。 来自诸如信号偏移，幅度失配和相位误差等来源的错误被解决。 在一个实施例中，通过确定和应用动态操作的校准参数集来解决错误。 用于确定操作校准参数的过程涉及最小化指示一组校正矢量Ci“的幅度的变化的变化度量。 通过使用校准参数来定义校正矢量Ci“，以提供对应于包括至少四个具有空间的相关正交信号样本（Ati，Bti）的正交信号样本的当前操作组的校正矢量分量（Ati”，Bti“） 相位角和角度分布在360度的重要部分上。 对于良好选择的校准参数，所得到的校正矢量定义了良好的中心圆，并且将变化度量最小化。

公开(公告)号：US07535382B2

公开(公告)日：2009-05-19

申请号：US11590960

申请日：2006-10-31

申请人： Bjorn E. B. Jansson

发明人： Bjorn E. B. Jansson

IPC分类号： H03M1/22

CPC分类号： G01D5/2451

摘要： A high speed quadrature counter for use with a displacement measuring device is disclosed. The counter provides high speed counting by partitioning the tracking counter into a small fast tracking counter portion for the LSBs and a larger slow tracking counter portion for the MSBs. The fast tracking counter portion outputs a smaller number of bits according to a fast clock rate, while the slow tracking counter portion outputs a larger number of bits to update the remainder of the position at a slower clock rate. In various embodiments, the counter provides a corrected position value that has an effective timing within a few fast clock cycles of the time of the latch trigger signal. A corrected latched position circuit corrects an error that may otherwise be produced by the partitioning and the different clock rates of the fast and slow tracking counter portions.

摘要翻译： 公开了一种与位移测量装置一起使用的高速正交计数器。 计数器通过将跟踪计数器分成用于LSB的小型快速跟踪计数器部分和用于MSB的较大慢跟踪计数器部分来提供高速计数。 快速跟踪计数器部分根据快速时钟速率输出较少数量的比特，而慢跟踪计数器部分输出较大数量的比特，以较慢的时钟速率更新该位置的剩余部分。 在各种实施例中，计数器提供校正位置值，该位置值在锁存触发信号的时间内的几个快速时钟周期内具有有效定时。 校正的锁存位置电路校正由分区产生的错误以及快速和慢速跟踪计数器部分的不同时钟速率。

公开(公告)号：US20090034641A1

公开(公告)日：2009-02-05

申请号：US11830684

申请日：2007-07-30

申请人： Bjorn E. B. Jansson

发明人： Bjorn E. B. Jansson

IPC分类号： H04L5/12

CPC分类号： G01D5/2449 ,  G01D5/24452

摘要： A system and method for real time calibration of a quadrature encoder. Errors from sources such as signal offsets, amplitude mismatches and phase errors are addressed. In one embodiment, the errors are addressed by determining and applying a dynamic operational set of calibration parameters. The process for determining the operational calibration parameters involves minimizing a variation metric that indicates the variations of the magnitudes of a set of corrected vectors Ci″. The corrected vectors Ci″ are defined by using the calibration parameters to provide corrected vector components (Ati″, Bti″) that correspond to a current operational set of quadrature signal samples comprising at least four respective quadrature signal samples (Ati, Bti) having spatial phase angles θti that are distributed over a significant portion of 360 degrees. For well chosen calibration parameters, the resulting corrected vectors define a well-centered circle and the variation metric is minimized.

摘要翻译： 一种用于正交编码器实时校准的系统和方法。 来自诸如信号偏移，幅度失配和相位误差等来源的错误被解决。 在一个实施例中，通过确定和应用动态操作的校准参数集来解决错误。 用于确定操作校准参数的过程包括最小化指示一组校正矢量Ci“的幅度变化的变化度量。 通过使用校准参数来定义校正矢量Ci“，以提供对应于包括至少四个相应正交信号样本（Ati，Bti）的正交信号样本的当前操作组的校正矢量分量（Ati”，Bti“） ）具有分布在360度的重要部分上的空间相位角。 对于良好选择的校准参数，所得到的校正矢量定义了良好的中心圆，并且将变化度量最小化。

公开(公告)号：US07217041B2

公开(公告)日：2007-05-15

申请号：US11235056

申请日：2005-09-26

申请人： Joseph Daniel Tobiason ,  Patrick H. Mawet ,  Bjorn E. B. Jansson

发明人： Joseph Daniel Tobiason ,  Patrick H. Mawet ,  Bjorn E. B. Jansson

IPC分类号： G02B6/36 ,  G02B6/12 ,  G02B6/26 ,  G02B6/42

CPC分类号： G02B6/4249 ,  G02B6/423

摘要： A method for connecting optical signals carried by optical fibers between an optical encoder readhead and an optical signal processing IC having a plurality of photodetector portions arranged in a photodetector configuration. The optical signal processing IC is fixed to a substrate at a first position and orientation. Then, a reference-surface block including at least one reference surface is fixed to the substrate in a second orientation and position based on the first position and orientation. A fiber-optic end piece is provided, which has at least one corresponding-reference surface and a plurality of optical fiber locating features that are arranged relative to the corresponding-reference surface. A plurality of the optical fibers are fixed to the plurality of optical fiber locating features to provide a coupling configuration of optical fiber ends that nominally matches the photodetector configuration. Finally, the corresponding-reference surface of the fiber-optic end piece is mounted against the reference surface of the reference-surface block such that the coupling configuration abuts the photodetector configuration.

摘要翻译： 一种用于在光学编码器读取头和具有以光电检测器配置布置的多个光电检测器部分的光信号处理IC之间连接由光纤携带的光信号的方法。 光信号处理IC在第一位置和方向上固定到基板。 然后，包括至少一个参考表面的参考表面块基于第一位置和取向在第二取向和位置固定到基板。 提供了一种光纤端部件，其具有相对于相应的参考表面布置的至少一个相应的参考表面和多个光纤定位特征。 多个光纤被固定到多个光纤定位特征，以提供名义上匹配光电检测器配置的光纤端部的耦合配置。 最后，将光纤端部的对应参考表面安装在参考表面块的参考表面上，使得耦合结构邻接光电检测器配置。