EP4370874A1 - Vorrichtung zur berührungslosen erfassung von bewegungen - Google Patents
Vorrichtung zur berührungslosen erfassung von bewegungenInfo
- Publication number
- EP4370874A1 EP4370874A1 EP22729437.8A EP22729437A EP4370874A1 EP 4370874 A1 EP4370874 A1 EP 4370874A1 EP 22729437 A EP22729437 A EP 22729437A EP 4370874 A1 EP4370874 A1 EP 4370874A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spatial direction
- sections
- transmitter device
- spatial
- transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2451—Incremental encoders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
- G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/06—Measuring direction or magnitude of magnetic fields or magnetic flux using galvano-magnetic devices
- G01R33/09—Magnetoresistive devices
- G01R33/091—Constructional adaptation of the sensor to specific applications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/01—Parts of vehicles in general
- F16C2326/02—Wheel hubs or castors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7869—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward
- F16C33/7879—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring
- F16C33/7883—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted with a cylindrical portion to the inner surface of the outer race and having a radial portion extending inward with a further sealing ring mounted to the inner race and of generally L-shape, the two sealing rings defining a sealing with box-shaped cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7889—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to an inner race and extending toward the outer race
Definitions
- the invention relates to a device for contactless detection of rotational or linear movements with a stationary magnetoresistive sensor and a transmitter device, the transmitter device having oppositely magnetized sections alternately along a trajectory extending in a first spatial direction, the magnetic poles of which are in a direction in the first spatial direction orthogonal second spatial direction, the sensor being spaced apart from the transmitter device by a gap in the second spatial direction, and the sections of the transmitter device extending in a third spatial direction orthogonal to the first and second spatial directions.
- Such devices are known from the prior art and are used in example for detecting rotational movements of roller bearings or vehicle wheels. This creates a magnetic field between the alternately magnetized sections, which has field components in all spatial directions.
- the sensor sees sinusoidal amplitudes of all three field components.
- the movement is determined based on the magnetic field components detected by the sensor in the first spatial direction.
- the dimensions of the transmitter device can be predetermined by the fact that it fulfills other functions in addition to its function as a transmitter device.
- elastomers are used for sealing in roller bearings, which are also determined by magnetization to be transmitter devices.
- the particular geometric requirements for these components result from the further function on the one hand and from the property as a transmitter device on the other hand.
- the positioning of the sensor cannot be freely selected due to the limited installation space.
- the positioning of the sensor relative to the extension of the transmitter device in the third spatial direction is important insofar as there are magnetic field components in the third spatial direction, particularly in the edge area of this extension - the so-called transverse field - which make it easier to detect the magnetic field components. components can interfere in the first spatial direction. Insofar as the aforementioned geo metric requirements lead to an unfavorable positioning of the sensor relative to the extension of the transmitter device due to the further function and this therefore sees a strong transverse field, reliable detection of the rotational movement is disadvantageously not given.
- a device as described above is known from DE 102007023385 A1, in which the sensor can be arranged perpendicularly or parallel to a plane in the first and the third spatial direction or in any angular position in between.
- the object of the present invention consists in proposing a device for the contactless detection of rotational or linear movements, in which the movement can be reliably detected.
- the object is solved by the subject matter of patent claim 1.
- the object is solved by the subject matter of patent claim 9 and by a method according to patent claim 10. Preferred embodiments can be found in the dependent claims.
- a device is characterized in that the sections of the transmitter device are magnetized over a length in the third spatial direction that is shorter than their extension in the third spatial direction.
- the geometry of the transmitter device can be determined by other geometric requirements, such as a sealing function, while the magnetized length can be adapted to the sensor position in order to position the sensor as favorably as possible in the resulting magnetic field.
- the magnetized length can be selected as desired and can thus be adapted to any installation situation of the transmitter device and the sensor.
- the first spatial direction is preferably a circumferential direction
- the second spatial direction is an axial direction
- the third spatial direction is a radial direction of a cylindrical coordinate system.
- Such a device is suitable for detecting rotational movements.
- the first spatial direction is an x-direction
- the second spatial direction is a z-direction
- the third spatial direction is a y-direction of a Cartesian coordinate system.
- Such a device is suitable for detecting linear movement.
- the transmitter device is a component of a roller bearing.
- the transmitter device is particularly preferably such a component that in the roller bearing already fulfills another function and to which the function of a transmitter device is assigned in addition to the other function by magnetization.
- the transmitter device is a seal of the roller bearing. Such a seal is largely determined by its sealing function in terms of its geometry, so that a particular advantage of the invention consists in decoupling the magnetized geometry from the external geometry of the tanning device, as described above.
- the transmitter device is arranged on a surface of the roller bearing whose surface normal points in an axial direction.
- the first spatial direction is then preferably a circumferential direction
- the second spatial direction is an axial direction
- the third spatial direction is a radial direction of a cylindrical coordinate system.
- the sensor can advantageously be arranged next to the roller bearing in the axial direction.
- the transmitter device can be arranged on a surface of the roller bearing whose surface normal points in a radial direction.
- the first spatial direction is then preferably a circumferential direction
- the second spatial direction is a radial direction
- the third spatial direction is an axial direction of a cylindrical coordinate system.
- the sensor can then be arranged radially on the outside of the roller bearing.
- the transmitter device is particularly preferably formed from an elastomer.
- the transmitter device is a seal of a roller bearing and is made of an elastomer.
- elastomers can be used for complex geometries and magnetized in a simple manner. They are also suitable for forming seals.
- the magnetoresistive area of the sensor is arranged centrally in the third spatial direction or directly adjacent to the center of the magnetized length of the sections of the transmitter device.
- the magnetoresistive area of the sensor is the area in the third spatial direction in which the magnetic field components are detected by the sensor. In the sense of the invention, the arrangement is to be understood as central if there are slight deviations from a precise central position.
- the position is also considered centered if it is 5%, 10%, or 15% of the magnetized length from the exact center.
- a minimum of the amplitude of the magnetic field components in the third spatial direction is usually to be expected, particularly in the case of a uniform design of the transmitter device in the third spatial direction.
- this minimum is to be expected to be directly adjacent to the center.
- the sensor can be positioned in the middle or immediately adjacent to the middle by selecting the magnetized length and positioning it.
- the transmitter device can be magnetized in the third spatial direction, optionally from one of its edges to a point along its extension.
- the magnetized length can also be spaced from the edges of the extension on both sides.
- Another aspect of the invention relates to a roller bearing with a device as described above.
- Such a device also has the advantages mentioned with regard to the device described above.
- a further aspect of the invention relates to a method for producing such a device.
- Such a method is characterized in that a tool provided for magnetizing the encoder device extends over the length to be magnetized, which is shorter than the extension of the sections of the encoder device. direction in the third spatial direction. In this way, the length to be magnetized is determined and can be reliably generated.
- a fundamental advantage of the invention in terms of production is that a large number of sensor positions can be realized with one and the same geometry of the transmitter device. It is therefore not necessary to adapt the tool for producing the transmitter device.
- Figure 1 shows a device according to the invention in a first embodiment in a plan view
- Figure 2 shows a device according to the invention in a second embodiment in a perspective view
- FIG. 3a shows an exemplary diagram representation of the maximum amplitude of the magnetic field component in the first spatial direction
- FIG. 3b shows an exemplary diagram representation of the maximum amplitude of the magnetic field component in the second spatial direction
- FIG. 3c shows an exemplary diagram representation of the maximum amplitude of the magnetic field component in the third spatial direction
- FIG. 4a shows a sectional illustration of a section of the transmitter device in an embodiment according to the prior art
- FIG. 4b shows a sectional illustration of a section of the transmitter device in a first embodiment according to the invention
- FIG. 4c shows a sectional view of a section of the transmitter device in a second embodiment according to the invention
- FIG. 4d shows a sectional illustration of a section of the transmitter device in a third embodiment according to the invention
- FIG. 5 shows an exemplary diagram representation of the maximum amplitude of the magnetic field component in the third spatial direction in various embodiments according to the prior art and according to the invention
- FIG. 6a a component of a rolling bearing according to the prior art in a perspective view
- FIG. 6b shows a component of a roller bearing according to the invention in a first embodiment in a perspective view
- FIG. 6c shows a component of a roller bearing according to the invention in a second embodiment in a perspective view.
- Figure 1 shows a device 100 according to the invention with a transmitter device 2, which along a trajectory in a first spatial direction 3.1, which is a circumferential direction here, alternately oppositely magnetized sections 2.1, 2.2, 2.3, 2.4,
- Sections 2.1, 2.3, 2.5 are shown hatched, which indicates a first polarity.
- sections 2.1, 2.3, 2.5 with the first polarity there is a north pole in the second spatial direction 3.2, which is an axial direction here and runs into the plane of the drawing, on the side facing the viewer and a south pole on the side facing away.
- the sections 2.2, 2.4 lying in between have a north pole on the side facing away from the viewer and a south pole on the side facing them.
- a radial direction is provided as the third spatial direction 3.3.
- the transmitter device 2 or its sections 2.1, 2.2, 2.3, 2.4, 2.5 have an extension F1 in this third spatial direction 3.3.
- the 1 also shows a sensor 4 which has connection contacts 4.1, 4.2 arranged thereon.
- the sensor 4 is arranged in the second spatial direction 3.2 above the transmitter device 2 and is spaced from it by an air gap.
- the sensor 4 is designed to detect the magnetic field components between the sections 2.1, 2.2, 2.3, 2.4, 2.5 in the first spatial direction 3.1.
- Figure 2 shows another embodiment of the device 200 according to the invention with a transmitter device 2 with sections 2.1, 2.2, 2.3, 2.4, 2.5 and with a sensor 4.
- the sections 2.1, 2.2, 2.3, 2.4, 2.5 are in the first spatial direction 3.1, the here is an axial direction, arranged in series.
- the second rough direction 3.2 and the third spatial direction 3.3 are perpendicular to the first spatial direction 3.1.
- FIG. 2 shows amplitudes of magnetic field components in the first spatial direction 3.1 and the second spatial direction 3.2 at the sections 2.1, 2.2, 2.3, 2.4, 2.5 along an axial center line 5, which in turn result from the alternating opposite magnetization.
- FIGS. 3a, 3b, 3c show the profile of the amplitudes of magnetic field components when scanned in the first spatial direction 3.1 over the extension H of the sections 2.1, 2.2, 2.3, 2.4, 2.5 in the third spatial direction 3.3 in a known from the prior art Magnetization over the entire extent H.
- FIG. 3a shows the amplitude of the magnetic field component in the first spatial direction 3.1. This is largely constant at a sufficient distance from the edges of the extension H and falls towards the edges.
- the amplitude of the magnetic field component runs approximately the same in the second spatial direction 3.2, which is shown in FIG. 3b.
- the amplitude of the magnetic field component in the third spatial direction 3.3 which is shown in FIG. 3c, behaves in the opposite way. It is particularly pronounced in areas near the edges of the extension H and has a minimum approximately in the middle.
- the magnetic field component in the third spatial direction 3.3 can interfere with the desired detection of the magnetic field component in the first spatial direction 3.1.
- a sensor 4 should preferably detect the magnetic field components in an area with a high amplitude in the first spatial direction 3.1 and lower Capture amplitude in the third spatial direction 3.3 to ensure reliable detection.
- FIGS. 3a, 3b, 3c A projection of a magnetoresistive region S of the sensor 4 is also shown in FIGS. 3a, 3b, 3c. This corresponds to the reading range of the sensor 4 when the sensor 4 is in a predetermined position. As can be seen from FIG is exposed in the third spatial direction 3.3.
- Figures 4a, 4b, 4c, 4d show one of the sections 2.1, 2.2, 2.3, 2.4, 2.5 in a sectional view, with the first spatial direction 3.1 being perpendicular to the plane of the drawing.
- the magnetized length M.1, M.2, M.3, M.4 of the sections 2.1, 2.2, 2.3, 2.4, 2.5 in the third spatial direction 3.3 is represented by hatching.
- section 2.1, 2.2, 2.3, 2.4, 2.5 is magnetized over its entire extent H.
- the magnetized length M.2, M.3 is, according to the invention, shorter than the extension H, specifically it ends on one side before the end of the extension H.
- the magnetized length M .4 according to the invention shorter than the extension H, but ends on both sides before the respective end of the extension H.
- FIG. 5 compares the statements of FIGS. 4a, 4b, 4c in a diagram according to FIG. 3c, which shows the amplitude of the magnetic field component in the third spatial direction 3.3 over the extension H.
- a first graph 7.1 corresponds to the magnetic field component in the third spatial direction 3.3 with a magnetized length M.1 according to FIG. 4a
- a second graph 7.2 corresponds to the magnetic field component in the third spatial direction 3.3 with a magnetized length M.2 according to FIG. 4b
- FIGS. 4a, 4b, 4c are shown superimposed with different hatchings below the diagram.
- FIG. 5 again shows a projection of the magnetoresistive area S of the sensor.
- the respective maximum amplitude of the magnetic field component in the third spatial direction 3.3 is lowest in an embodiment according to FIG. 4c (item 6.3).
- the embodiment according to FIG. 4b there is already a lower maximum amplitude than in the embodiment according to the prior art (item 6.1).
- FIGS. 6a, 6b, 6c each show a transmitter device 2 according to the invention with sections 2.1, 2.2, 2.3, the transmitter device 2 here being a seal on a component 8 of a roller bearing.
- the seal is in particular formed from a magnetizable elastomer.
- the transmitter device 2 is magnetized over its entire extent F1, corresponding to FIG. 4a and thus according to the prior art.
- the encoder device 2 is magnetized over a length M.2, corresponding to FIG. 4b, and over a length M.3 in FIG. 6c, corresponding to FIG. 4c.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Electrochemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021118230.1A DE102021118230A1 (de) | 2021-07-14 | 2021-07-14 | Vorrichtung zur berührungslosen Erfassung von Bewegungen |
| PCT/DE2022/100409 WO2023284907A1 (de) | 2021-07-14 | 2022-06-01 | Vorrichtung zur berührungslosen erfassung von bewegungen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4370874A1 true EP4370874A1 (de) | 2024-05-22 |
Family
ID=82020074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22729437.8A Pending EP4370874A1 (de) | 2021-07-14 | 2022-06-01 | Vorrichtung zur berührungslosen erfassung von bewegungen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240310402A1 (de) |
| EP (1) | EP4370874A1 (de) |
| CN (1) | CN117642603A (de) |
| DE (1) | DE102021118230A1 (de) |
| WO (1) | WO2023284907A1 (de) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5617071A (en) * | 1992-11-16 | 1997-04-01 | Nonvolatile Electronics, Incorporated | Magnetoresistive structure comprising ferromagnetic thin films and intermediate alloy layer having magnetic concentrator and shielding permeable masses |
| JP3397026B2 (ja) * | 1995-12-06 | 2003-04-14 | トヨタ自動車株式会社 | 磁気式回転検出装置 |
| DE102006045827A1 (de) | 2006-09-22 | 2008-04-10 | Dichtungstechnik G. Bruss Gmbh & Co. Kg | Axialverschiebbares Bauteil insbesondere in einem Kraftfahrzeugmotor oder -getriebe |
| DE102007023385A1 (de) | 2007-05-18 | 2008-11-20 | Robert Bosch Gmbh | Vorrichtung zur berührungslosen Erfassung von Linear- oder Rotationsbewegungen |
| DE102007025322B4 (de) * | 2007-05-31 | 2015-08-06 | Infineon Technologies Ag | Sensorvorrichtung |
| JP5036045B2 (ja) * | 2007-07-18 | 2012-09-26 | 内山工業株式会社 | 磁気エンコーダ |
| DE102007050256B4 (de) | 2007-10-20 | 2019-05-23 | Schaeffler Technologies AG & Co. KG | Lagerbestandteil mit einem Encoderelement zur Anzeige einer Stellung oder Bewegung des Lagerbestandteils |
| DE102007063006A1 (de) | 2007-12-21 | 2009-06-25 | Baumer Holding Ag | Verfahren und Vorrichtung zur Herstellung einer Maßverkörperung für Positionsmesssysteme sowie Maßverkörperung |
| DE102008055680A1 (de) | 2008-10-28 | 2010-04-29 | Balluff Gmbh | Positons-/Wegmesssystem mit kodiertem Maßkörper |
| DE102013219018A1 (de) * | 2012-12-20 | 2014-06-26 | Continental Teves Ag & Co. Ohg | Winkelsensors |
| DE102015004992A1 (de) * | 2015-04-18 | 2016-10-20 | Man Truck & Bus Ag | Anordnung zur Ermittlung einer Drehzahl und Drehrichtung eines rotierenden Bauteils |
| DE102018106438A1 (de) | 2017-12-13 | 2019-06-13 | Schaeffler Technologies AG & Co. KG | Sensoranordnung mit einem Multipolencoder sowie Rotationslager mit einer solchen Sensoranordnung |
-
2021
- 2021-07-14 DE DE102021118230.1A patent/DE102021118230A1/de active Pending
-
2022
- 2022-06-01 EP EP22729437.8A patent/EP4370874A1/de active Pending
- 2022-06-01 US US18/576,424 patent/US20240310402A1/en active Pending
- 2022-06-01 CN CN202280049505.XA patent/CN117642603A/zh active Pending
- 2022-06-01 WO PCT/DE2022/100409 patent/WO2023284907A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| CN117642603A (zh) | 2024-03-01 |
| US20240310402A1 (en) | 2024-09-19 |
| WO2023284907A1 (de) | 2023-01-19 |
| DE102021118230A1 (de) | 2023-01-19 |
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