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公开(公告)号：US12031886B2
公开(公告)日：2024-07-09
申请号：US18076434
申请日：2022-12-07
CPC分类号： G01M5/0058 , F03D17/00 , G01D5/28 , F05B2260/83
摘要： A sensor assembly for measuring a torsion of a rotor blade of a wind turbine generator system includes a first light source configured to generate light and a first transmitter-side polarizer disposed downstream thereof in a direction of light propagation and configured to generate linearly polarized light as a first transmission light. A second light source is configured to generate unpolarized light as a second transmission light. First and second detector elements are arranged and adapted to receive the first and second transmission light. A first receiver-side polarizer is disposed upstream of the first detector element in the direction of light propagation and a second receiver-side polarizer is disposed upstream of the second detector element in the direction of light propagation. An orientation of a polarization plane of the first receiver-side polarizer and an orientation of a polarization plane of the second receiver-side polarizer are different from one another.
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公开(公告)号：US11913814B2
公开(公告)日：2024-02-27
申请号：US17634559
申请日：2020-07-08
CPC分类号： G01D5/2458 , G01D5/2457 , G01D5/34792 , G01D2205/90
摘要： A position-measuring device includes a carrier body having a first and second measuring graduations and a reference mark. The first and second measuring graduations include graduation structures periodically arranged along first and second measurement directions, respectively, that are perpendicular to each other. The graduation structures of the first measuring graduation each extend parallel to a first direction and the reference mark extends in a second direction that forms an angle different from 0° with the first direction. First and second scanners are configured to scan the first and second measuring graduations and generate first and second scanning signals, respectively. A third scanner is configured to scan the reference mark and generate a reference pulse. The position-measuring device is configured such that a phase angle of the reference pulse is determined as a function of the first scanning signals and the reference pulse.
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公开(公告)号：US11796313B2
公开(公告)日：2023-10-24
申请号：US14270391
申请日：2014-05-06
摘要： A position-measuring device includes a measuring transducer configured to carry out a position measurement. The position-measuring device has at least one memory having stored parameter data defining an active configuration under which the position-measuring device is operable. The at least one memory further has data and instructions useable to activate at least one further configuration under which the position-measuring device is operable.
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公开(公告)号：US11796301B2
公开(公告)日：2023-10-24
申请号：US17083327
申请日：2020-10-29
IPC分类号： G01B7/30 , G01B7/02 , G11C19/08 , G01D5/14 , G11C21/00 , G01D5/56 , B82Y25/00 , G01P3/44 , G01R33/09 , G01R33/00
CPC分类号： G01B7/02 , G01D5/145 , G01D5/56 , G11C19/0808 , G11C21/00 , B82Y25/00 , G01D2205/26 , G01D2205/90 , G01P3/44 , G01R33/0005 , G01R33/091
摘要： A sensor element for storing rotation or position information includes a substrate and a domain wall conductor arranged on the substrate. A course of the domain wall conductor is of a closed circumferential, continuous configuration without crossings. The domain wall conductor comprises a first region having a positive curvature and a second region having a negative curvature.
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公开(公告)号：US20230311263A1
公开(公告)日：2023-10-05
申请号：US18126540
申请日：2023-03-27
CPC分类号： B23Q15/22 , B23Q11/126
摘要： A device for determining an approach of a tool to a workpiece in a machine tool with internal cooling supply includes a measuring arrangement, having a measuring graduation arranged in a rotationally fixed manner on a shaft and at least one position sensor arranged in a fixed manner relative to the shaft, and a data processor. The position sensor is adapted to scan the measuring graduation and to generate position values therefrom that indicate a position of the shaft. The position values are fed to the data processor, which, by evaluating a progression of the position values when the tool approaches the workpiece, determines that the tool is located in an approach area relative to the workpiece, and signals, by an approach signal, when the tool reaches an approach position relative to the workpiece, in which the tool is close to the workpiece without touching it.
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公开(公告)号：US20230150081A1
公开(公告)日：2023-05-18
申请号：US17973590
申请日：2022-10-26
CPC分类号： B23Q17/2457 , G01B11/026 , G01B11/03 , G01B11/005 , G01B11/2545
摘要： A device for determining a dimension of a tool having a cutting edge includes a first light source configured to emit light parallel to a first axis, an image sensor which is associatable with a second axis extending orthogonally to the image sensor and an analyzing unit. The first axis and the second axis are inclined relative to each other. The device is configured such that the light emitted from the first light source is reflectable by the cutting edge of the tool in such a way that light spots arranged in a line on the image sensor are generatable by the reflected light. The analyzing unit is configured to determine positions of the light spots. The dimension of the tool is determinable based on the positions of the light spots.
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公开(公告)号：US11644348B2
公开(公告)日：2023-05-09
申请号：US17164867
申请日：2021-02-02
CPC分类号： G01D5/38 , G01B11/00 , G01B11/005 , G01D5/34715 , G01D5/34746
摘要： An optical position measuring device for recording a relative position of two scales includes the scales. The longitudinal extents of the scales are oriented parallel to a first and second measuring direction. A horizontal plane of movement is spanned by these measuring directions. A light source is configured to emit an illumination beam that is split into at least two sub-beam bundles at the first scale. The sub-beam bundles subsequently impinge on the second scale, which is tilted about the direction of the longitudinal extent thereof relative to the horizontal plane of movement, and are back-reflected to impinge again on the first scale and are recombined there such that a resulting signal beam is subsequently propagated toward a detection unit, via which phase-shifted scanning signals are generatable with respect to a relative movement of the scales along a third perpendicular measuring direction and the first or second measuring direction.
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公开(公告)号：US20230129608A1
公开(公告)日：2023-04-27
申请号：US17969004
申请日：2022-10-19
摘要： An inductive angle measuring device includes a scanning element and a scale element having scale tracks. First and third scale tracks have an equal first number of scale structures, and a second scale track has a different number of scale structures. The scale tracks are arranged circumferentially and concentrically about an axis, such that the first scale track is located radially inwardly, the second scale track is located radially between the first scale track and the third scale track, and the third scale track is located radially outwardly. The scanning element includes receiver conductors by which the signals having angle-related signal periods can be generated. The first signal period is equal to the third signal period. An overall signal can be generated from the first signal and the third signal and can be combined with the second signal for determining absolute angle position information.
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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：US20220357183A1
公开(公告)日：2022-11-10
申请号：US17720304
申请日：2022-04-14
IPC分类号： G01D5/20
摘要： An assembly includes a rotary encoder having a shaft rotatable about an axis relative to a housing, a tolerance ring and a body accommodating the rotary encoder and the tolerance ring. The housing includes an outer wall having first and second distances from the axis in first and second sections, respectively, the first distance being greater than the second distance. The body has an opening that is: bounded radially by a first inner wall having third and fourth distances from the axis in third and fourth sections, the fourth distance being greater than the third distance; and bounded by a second inner wall which forms an axial stop for the housing. The tolerance ring surrounds the housing and is positioned within the opening such that it is disposed radially between the first and fourth sections and between the second and third sections, and is radially clamped.
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