公开(公告)号：US20180021840A1

公开(公告)日：2018-01-25

申请号：US15723647

申请日：2017-10-03

申请人： MILWAUKEE ELECTRIC TOOL CORPORATION

发明人： Troy C. Thorson ,  Jeffrey M. Wackwitz ,  Kyle J. Radovich ,  Jonathon R. Gasteiner

IPC分类号： B21D39/04 ,  B23D15/04 ,  F16H25/20 ,  B25B27/10 ,  B25B7/02

CPC分类号： B21D39/04 ,  B21D15/04 ,  B23D15/04 ,  B25B7/02 ,  B25B27/10 ,  B25B27/146 ,  F16H25/20 ,  G01D5/2458 ,  G05B19/232

摘要： A power tool includes a motor having an output shaft, an extensible member driven by the motor, a working assembly movable in response to contact with a distal end of the extensible member, a first sensor configured to detect a home position of the extensible member, a second sensor configured to detect rotation of the motor output shaft, and a controller in electrical communication with the first and second sensors. The controller is configured to drive the motor output shaft in a first rotational direction a predetermined number of revolutions counted by the second sensor, thereby displacing the extensible member from the home position. The controller is also configured to drive the motor output shaft in an opposite, second rotational direction to thereby return the extensible member until the home position is detected by the first sensor.

公开(公告)号：US20170344417A1

公开(公告)日：2017-11-30

申请号：US15598929

申请日：2017-05-18

申请人： Mitutoyo Corporation

发明人： Naoki Kobayashi

IPC分类号： G06F11/07 ,  G01D5/245

CPC分类号： G06F11/0715 ,  G01D5/24495 ,  G01D5/2458 ,  G05B2219/37136 ,  G06F11/0751 ,  G06F11/0772

摘要： An encoder includes: a reading device that reads respective electric signals from two incremental patterns respectively having graduation array pitches different from each other; a control device that calculates a measurement value, based on the electric signals; and an output device that outputs the measurement value. The control device includes: an absolute position synthesis unit that synthesizes two electric signals to generate a synthesized absolute position; a detection unit that detects two relative positions from the two electric signals; a position calculation unit that performs an arithmetic operation between the relative positions and the synthesized absolute position to calculate a calculated absolute position; an absolute position comparison unit that compares the calculated absolute position with the synthesized absolute position; and a relative position comparison unit that compares the two relative positions with each other. The output device outputs error information, based on a comparison result output from the control device.

公开(公告)号：US09541423B2

公开(公告)日：2017-01-10

申请号：US14382629

申请日：2013-03-06

申请人： RENISHAW PLC ,  RLS MERILNA TEHNIKA D.O.O.

发明人： Peter Kogej ,  Alja{hacek over (z)} Ogrin ,  Gregor Dol{hacek over (s)}ak ,  Bla{hacek over (z)} Hajdinjak

IPC分类号： G01B7/14 ,  G01B7/30 ,  G01D5/12 ,  G01D5/244 ,  G01D5/245

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

摘要： A magnetic encoder apparatus is presented that includes a plurality of magnetic sensor elements (e.g. Hall sensors) for reading an associated magnetic scale that produces a periodically repeating magnetic pattern. The plurality of magnetic sensor elements produce a plurality of sensor signals and an analyzer is provided for analyzing the plurality of sensor signals to provide a measure of the position of the magnetic sensor elements relative to the associated magnetic scale. The analyzer is arranged to use the plurality of sensor signals to assess the period 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 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。

公开(公告)号：US20160131508A1

公开(公告)日：2016-05-12

申请号：US14347773

申请日：2013-04-24

申请人： Hiroshi NAGATA ,  Toshikazu SATONE ,  Masanori NIMURA ,  Hajime NAKAJIMA

发明人： Hiroshi NAGATA ,  Toshikazu SATONE ,  Masanori NIMURA ,  Hajime NAKAJIMA

IPC分类号： G01D18/00 ,  G01D5/347

CPC分类号： G01D18/00 ,  G01D5/24461 ,  G01D5/2451 ,  G01D5/2454 ,  G01D5/2458 ,  G01D5/3473 ,  G05B2219/42315 ,  G05B2219/42329 ,  G06F3/0312

摘要： An encoder includes a first multiple rotation counter that generates first multiple rotation data using a rotation signal indicating one rotation of a rotational shaft of a motor, a second multiple rotation counter that generates second multiple rotation data using the rotation signal, a first cumulative-number calculation unit that calculates first accumulated multiple rotation data using an angle signal indicating a rotational angle of the rotational shaft, a second cumulative-number calculation unit that calculates second accumulated multiple rotation data using the angle signal, and a first comparative diagnosis unit that diagnoses whether the encoder has a fault by performing a comparison to determine whether the first multiple rotation data, the second multiple rotation data, the first accumulated multiple rotation data, and the second accumulated multiple rotation data are a same value.

摘要翻译： 编码器包括：第一多个旋转计数器，其使用指示电动机的旋转轴的一个旋转的旋转信号产生第一多个旋转数据;第二多个旋转计数器，其使用旋转信号产生第二多个旋转数据;第一累积数 计算单元，其使用表示所述旋转轴的旋转角度的角度信号来计算第一累积的多个旋转数据;第二累积次数计算单元，其使用所述角度信号计算第二累积的多个旋转数据;以及第一比较诊断单元， 编码器通过执行比较来确定第一多个旋转数据，第二个多个旋转数据，第一个累积多个旋转数据和第二个累积的多个旋转数据是否是相同的值。

公开(公告)号：US20150077092A1

公开(公告)日：2015-03-19

申请号：US14382629

申请日：2013-03-06

申请人： RENISHAW PLC ,  RLS MERILNA TEHNIKA D.O.O.

发明人： Peter Kogej ,  Aljaz Ogrin ,  Gregor Dolsak ,  Blaz Hajdinak

IPC分类号： G01D5/12

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

摘要： A magnetic encoder apparatus is presented that includes a plurality of magnetic sensor elements (e.g. Hall sensors) for reading an associated magnetic scale that produces a periodically repeating magnetic pattern. The plurality of magnetic sensor elements produce a plurality of sensor signals and an analyzer is provided for analyzing the plurality of sensor signals to provide a measure of the position of the magnetic sensor elements relative to the associated magnetic scale. The analyzer is arranged to use the plurality of sensor signals to assess the period 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 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。

公开(公告)号：US20140217271A1

公开(公告)日：2014-08-07

申请号：US14173227

申请日：2014-02-05

申请人： MITUTOYO CORPORATION

发明人： Yoshiaki Kato

IPC分类号： G01D5/347

CPC分类号： G01D5/34746 ,  G01D5/24452 ,  G01D5/24485 ,  G01D5/2458 ,  G01D18/00

摘要： In a separate linear encoder, a scale is further provided with an ABS track that is arranged in parallel with an INC track and a detection head includes an ABS detection portion that reads the ABS track. The separate linear encoder includes a calculation portion that obtains a yaw angle of the detection head with respect to a scale based on a gap between an INC detection portion and an ABS detection portion and a difference amount between a position value of the INC track, which is detected by the INC detection portion, and a position of the ABS track, which is detected by the ABS detection portion. The calculation portion also obtains a signal strength based on two-phase sine wave signals that are output from the INC detection portion. The separate linear encoder further includes a display device that displays a plurality of yaw angles and the signal strengths corresponding to the respective yaw angles.

摘要翻译： 在单独的线性编码器中，刻度尺还设置有与INC轨道并联布置的ABS轨道，并且检测头包括读取ABS轨道的ABS检测部分。 单独的线性编码器包括基于INC检测部和ABS检测部之间的间隙和INC轨迹的位置值之间的差量来获得检测头相对于刻度的偏航角的计算部，其中 由INC检测部分检测到，并且由ABS检测部分检测到的ABS轨迹的位置。 计算部分还获得基于从INC检测部分输出的两相正弦波信号的信号强度。 单独的线性编码器还包括显示装置，其显示多个偏航角和对应于各个偏航角的信号强度。

公开(公告)号：US20130169270A1

公开(公告)日：2013-07-04

申请号：US13817686

申请日：2011-08-12

申请人： Michaël Delbaere ,  Gérald Masson ,  Yannick Ronnat ,  Stéphane Biwersi

发明人： Michaël Delbaere ,  Gérald Masson ,  Yannick Ronnat ,  Stéphane Biwersi

IPC分类号： G01B7/30

CPC分类号： G01B7/30 ,  G01D5/24409 ,  G01D5/2458 ,  G01L3/104

摘要： The disclosure relates to a magnetic device for detecting the absolute position of an input shaft capable of rotating more than 360°, the device including a main magnetic sensor, a motion reducer, and a secondary magnetic sensor, wherein the main magnetic sensor is connected to a rotor, measures the rotation of the shaft for ranges of angles of less than 360°, and includes a main magnet, the motion reducer converts the rotation of the shaft into a reduced rotation, the maximum amplitude of which is equal to no more than 360°, and the secondary magnetic sensor measures the reduced rotation and includes a secondary magnet. According to the disclosure, the secondary magnet is arranged between the upper and lower planes of the main rotor, and the main magnet has P pairs of poles, where P is greater than 1.

摘要翻译： 本发明涉及一种用于检测能够旋转大于360度的输入轴的绝对位置的磁性装置，该装置包括主磁传感器，运动减速器和次级磁传感器，其中主磁传感器连接到 转子，用于测量轴的旋转角度小于360°的角度，并且包括主磁体，运动减速器将轴的旋转转换为减小的旋转，其最大振幅等于不大于 360°，次级磁传感器测量减小的旋转并且包括次级磁体。 根据本公开，二次磁铁配置在主转子的上平面和下平面之间，主磁体具有P对极，P大于1。

公开(公告)号：US20110095658A1

公开(公告)日：2011-04-28

申请号：US12908591

申请日：2010-10-20

申请人： Shiuchi TAKEUCHI

发明人： Shiuchi TAKEUCHI

IPC分类号： H02K23/66

CPC分类号： H02K29/12 ,  G01D5/2458

摘要： A rotational angle detector provided with a circular rotary plate integrally rotatable with a rotor of a motor and including a circumferential surface having marks, which are spaced apart by different angular intervals in a circumferential direction. A rotational angle detection unit is arranged along the circumferential direction of the rotary plate to detect a rotational angle of each mark, rotated together with the rotary plate, in a predetermined detection zone. The rotational angle detector determines, when adjacent marks are located in the detection zone, angular intervals between the adjacent marks based on the rotational angle of each mark, specifies a mark that is located in the detection zone based on the determined angular intervals, and detects the rotational angle of the rotor based on the rotational angle of the specified mark rotating in the detection zone.

摘要翻译： 一种旋转角度检测器，其设置有与电动机的转子一体地旋转的圆形旋转板，并且包括具有沿圆周方向以不同角度间隔间隔的标记的圆周表面。 旋转角度检测单元沿着旋转板的圆周方向布置，以检测与旋转板一起旋转的每个标记的旋转角度在预定检测区域中。 当相邻标记位于检测区域中时，旋转角度检测器基于每个标记的旋转角度确定相邻标记之间的角度间隔，基于确定的角度间隔指定位于检测区域中的标记，并且检测 基于在检测区域中旋转的指定标记的旋转角度的转子的旋转角度。

公开(公告)号：US07663093B2

公开(公告)日：2010-02-16

申请号：US12141529

申请日：2008-06-18

申请人： Kouhei Kusano

发明人： Kouhei Kusano

IPC分类号： G01D5/34

CPC分类号： G01D5/34784 ,  G01D5/2455 ,  G01D5/2458 ,  G01D5/2495 ,  G01D5/34746

摘要： A scale has a first incremental track with first incremental patterns including first light and dark patterns formed at equal intervals in first periods, an absolute track with absolute patterns representing absolute positions, and a second incremental track with second incremental patterns including second light and dark patterns formed at equal intervals in second periods longer than the first periods. A light source emits a measurement light to the scale. A photodetector receives the measurement light reflected at or transmitted through the scale. A signal processing circuit processes the received light signal of the photodetector to detect an absolute position of the scale.

摘要翻译： 刻度具有第一增量迹线，其具有第一增量图案，包括在第一周期中以相等间隔形成的第一光和暗图案，具有绝对图案的绝对迹线表示绝对位置，以及具有第二增量图案的第二增量轨迹，包括第二光和暗图案 在比第一个周期长的第二个周期以相等的间隔形成。 光源将测量光发射到刻度。 光电检测器接收在标尺上反射或透射的测量光。 信号处理电路处理光电检测器的接收光信号以检测刻度的绝对位置。

公开(公告)号：US06542088B1

公开(公告)日：2003-04-01

申请号：US09674840

申请日：2001-03-28

申请人： Steffen Bielski ,  Kurt Feichtinger ,  Alfons Spies ,  Erich Strasser ,  Johann Mitterreiter ,  Hermann Meyer ,  Andreas Schroter

发明人： Steffen Bielski ,  Kurt Feichtinger ,  Alfons Spies ,  Erich Strasser ,  Johann Mitterreiter ,  Hermann Meyer ,  Andreas Schroter

IPC分类号： H03M122

CPC分类号： G01D5/145 ,  G01B7/30 ,  G01D5/2458

摘要： 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.

摘要翻译： 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。