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公开(公告)号：US11578962B2
公开(公告)日：2023-02-14
申请号：US17240539
申请日：2021-04-26
摘要： An inductive position measuring device includes a scanning element and a scale element. The position measuring device is able to determine positions of the scanning element relative to the scale element in a first direction and in a second direction. The scale element includes graduation structures arranged next to one another along the first direction, and the graduation structures have a periodic characteristic with a second period length along the second direction. The scanning element has a first receiver track, a second receiver track, a third receiver track, and an excitation lead. Each of the three receiver tracks has two receiver circuit traces. The receiver circuit traces have a periodic characteristic with a first period length along the first direction, and the receiver tracks are arranged at an offset from one another in the second direction.
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公开(公告)号：US20140077795A1
公开(公告)日：2014-03-20
申请号：US14028566
申请日：2013-09-17
发明人： Johann Oberhauser , Bernhard Schmied , Jannik Jens Rosenlehner-Emde , Werner Schwaiger , Thomas Schweizer , Hubert Mayer , Marc Oliver Tiemann
IPC分类号： G01B7/30
CPC分类号： G01B7/30 , G01D5/24438 , G01D5/24476 , G01D5/2455 , G06F1/00 , G06F2101/00 , G06F2201/00
摘要： A position-measuring device includes a code carrier having a first graduation track and a second graduation track, the second graduation track being an incremental graduation track. A first detector system is configured to scan the graduation tracks so as to generate first position signals. A second detector system is configured to scan the second graduation track so as to generate second position signals. A first position-processing unit is configured to process the first position signals so as to yield a first absolute position value. A second position-processing unit is configured to process the second position signals so as to yield a second absolute position value. The first position-processing unit is configured to feed an absolute auxiliary position value to the second position-processing unit. The second position-processing unit is initializable with the absolute auxiliary position value.
摘要翻译： 位置测量装置包括具有第一刻度轨道和第二刻度轨道的代码载体，所述第二刻度轨道是增量刻度轨道。 第一检测器系统被配置为扫描分度轨迹以便产生第一位置信号。 第二检测器系统被配置为扫描第二刻度轨道以便产生第二位置信号。 第一位置处理单元被配置为处理第一位置信号以产生第一绝对位置值。 第二位置处理单元被配置为处理第二位置信号以产生第二绝对位置值。 第一位置处理单元被配置为将绝对辅助位置值馈送到第二位置处理单元。 第二位置处理单元可以用绝对辅助位置值初始化。
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公开(公告)号：US11686568B2
公开(公告)日：2023-06-27
申请号：US17545167
申请日：2021-12-08
CPC分类号： G01B7/003 , G01B7/30 , G01D5/2053
摘要： A scanning element includes a multi-layer circuit board and electronic components, and the circuit board includes a first detector unit having a first receiver track. Moreover, the circuit board includes a second detector unit having a second receiver track. The circuit board has a geometrical center plane located between the detector units. The receiver tracks include first and second receiver conductor traces, each having a periodic characteristic, and the first receiver track has a first gap along its extension, which is restricted by the first receiver conductor traces. The second receiver track has a second gap, which is restricted by the second receiver conductor traces. The circuit board has a plated through-hole arranged both within the first gap and within the second gap.
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公开(公告)号：US20210341278A1
公开(公告)日：2021-11-04
申请号：US17240539
申请日：2021-04-26
摘要： An inductive position measuring device includes a scanning element and a scale element. The position measuring device is able to determine positions of the scanning element relative to the scale element in a first direction and in a second direction. The scale element includes graduation structures arranged next to one another along the first direction, and the graduation structures have a periodic characteristic with a second period length along the second direction. The scanning element has a first receiver track, a second receiver track, a third receiver track, and an excitation lead. Each of the three receiver tracks has two receiver circuit traces. The receiver circuit traces have a periodic characteristic with a first period length along the first direction, and the receiver tracks are arranged at an offset from one another in the second direction.
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公开(公告)号：US20170160102A1
公开(公告)日：2017-06-08
申请号：US15356698
申请日：2016-11-21
IPC分类号： G01D5/20
CPC分类号： G01D5/2013 , G01D5/2053 , G01D5/2452
摘要： An inductive position-measuring device for absolute position determination includes a scale having a first measuring graduation extending in a measurement direction and a second measuring graduation disposed opposite to the first measuring graduation and extending parallel thereto. A scanner is disposed in a gap between the first measuring graduation and the second measuring graduation. The scanner is displaceable relative to the scale in the measurement direction for purposes of position measurement. The scanner includes a first coil arrangement for scanning the first measuring graduation and generating a first position-dependent scanning signal, and a second coil arrangement, disposed opposite to the first coil arrangement, for scanning the second measuring graduation and generating a second position-dependent scanning signal. At least one intermediate layer of soft magnetic material disposed between the first coil arrangement and the second coil arrangement.
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公开(公告)号：US20240102787A1
公开(公告)日：2024-03-28
申请号：US18307974
申请日：2023-04-27
CPC分类号： G01B7/003 , G01D5/2053 , G01D5/2451
摘要： An inductive position-measuring device includes a scanning element and a graduation element movable relative thereto along a direction. The scanning element has an excitation conductor, and first and second receiver tracks each having a receiver conductor, which extends along the direction according to first and second periodic patterns, respectively, over a length. A graduation track has graduation structures formed of ridges and gaps. The ridges have different widths, or the gaps have different depths or different widths, in the direction. The receiver conductors of the first and second receiver tracks are configured to generate first and second signals having first and second period lengths, respectively, wherein n times the first period length equals m times the second period length, with m and n being relatively prime, and n times the first period length and m times the second period length both being less than or equal to the length.
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公开(公告)号：US10989515B2
公开(公告)日：2021-04-27
申请号：US16200162
申请日：2018-11-26
摘要： An inductive position-measuring device includes a scanning element and a graduation element, rotatable about an axis relative to the scanning element. The scanning element has exciter lead(s), a first receiver track, including receiver line(s), extending according to a first periodic pattern having a first period along a first direction, and a second receiver track, including receiver line(s). The graduation element includes a graduation track, extending in the circumferential direction and including a graduation period. An electromagnetic field generated by the exciter lead(s) with the aid of the graduation track is able to be modulated, so that an angular position is detectable with the aid of the receiver line of the first receiver track, and a position of the graduation element in the first direction relative to the scanning element is detectable with the aid of the receiver line of the second receiver track.
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公开(公告)号：US09958296B2
公开(公告)日：2018-05-01
申请号：US15356698
申请日：2016-11-21
CPC分类号： G01D5/2013 , G01D5/2053 , G01D5/2452
摘要： An inductive position-measuring device for absolute position determination includes a scale having a first measuring graduation extending in a measurement direction and a second measuring graduation disposed opposite to the first measuring graduation and extending parallel thereto. A scanner is disposed in a gap between the first measuring graduation and the second measuring graduation. The scanner is displaceable relative to the scale in the measurement direction for purposes of position measurement. The scanner includes a first coil arrangement for scanning the first measuring graduation and generating a first position-dependent scanning signal, and a second coil arrangement, disposed opposite to the first coil arrangement, for scanning the second measuring graduation and generating a second position-dependent scanning signal. At least one intermediate layer of soft magnetic material disposed between the first coil arrangement and the second coil arrangement.
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公开(公告)号：US20170350728A1
公开(公告)日：2017-12-07
申请号：US15603472
申请日：2017-05-24
CPC分类号： G01D5/204 , G01B7/14 , G01D5/2046 , G01D5/2053 , G01D5/2275
摘要： A scale for inductive position measurement along a measurement direction X includes a support channel made of electrically conductive material having two interconnected spaced-apart side walls extending parallel to the measurement direction X and enclosing an interstitial space therebetween. A succession of first graduations made of electrically conductive material are disposed on the support channel, located in the interstitial space opposite and spaced from one of the two side walls and extending parallel to the measurement direction X. A succession of second graduations made of electrically conductive material are disposed on the support channel, located in the interstitial space opposite and spaced from the other one of the two side walls and extending parallel to the measurement direction X. The succession of first graduations and the succession of second graduations form a gap configured to receive a scanner operable to inductively scan the first graduations and the second graduations.
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公开(公告)号：US20140167746A1
公开(公告)日：2014-06-19
申请号：US14105859
申请日：2013-12-13
IPC分类号： G01B7/00
CPC分类号： G01B7/003 , G01B7/30 , G01D5/2053 , G01D5/2451
摘要： An inductive position-measuring device includes a scanning element and a graduation element that are movable relative to each other in a first direction. The scanning element includes exciter conductors and three receiver tracks. The first and the second receiver track are disposed at a distance relative to each other, and the third receiver track is located between the first and the second receiver track. The graduation element includes two graduation tracks which are disposed at a distance relative to each other, and which have different graduation periods. Furthermore, electromagnetic fields generated by the exciter conductors are able to be modulated by the graduation tracks, so that a relative position in the first direction is detectable by the first and the second receiver track, while a relative position in a second direction, which is oriented orthogonally with respect to the first direction, is detectable by the third receiver track.
摘要翻译： 感应位置测量装置包括可沿第一方向相对于彼此移动的扫描元件和刻度元件。 扫描元件包括激励器导体和三个接收器轨道。 第一和第二接收器轨道相对于彼此设置一定距离，并且第三接收器轨道位于第一和第二接收器轨道之间。 毕业元素包括彼此相距一定距离并且具有不同毕业周期的两个毕业轨迹。 此外，由激励器导体产生的电磁场能够被刻度轨道调制，使得第一方向上的相对位置可由第一和第二接收器轨道检测，而第二方向上的相对位置 相对于第一方向正交定向，可由第三接收器轨迹检测。
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