DE102007023385A1 - Device for non-contact detection of linear or rotational movements - Google Patents
Device for non-contact detection of linear or rotational movements Download PDFInfo
- Publication number
- DE102007023385A1 DE102007023385A1 DE102007023385A DE102007023385A DE102007023385A1 DE 102007023385 A1 DE102007023385 A1 DE 102007023385A1 DE 102007023385 A DE102007023385 A DE 102007023385A DE 102007023385 A DE102007023385 A DE 102007023385A DE 102007023385 A1 DE102007023385 A1 DE 102007023385A1
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- Germany
- Prior art keywords
- sensor
- chip sensor
- chip
- coordinate system
- magnetic field
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- 238000001514 detection method Methods 0.000 title claims abstract description 10
- 230000005405 multipole Effects 0.000 claims description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000004907 flux Effects 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001803 electron scattering Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
- G01D5/14—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- 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
- G01R33/093—Magnetoresistive devices using multilayer structures, e.g. giant magnetoresistance sensors
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Die Erfindung betrifft eine Vorrichtung zur berührungslosen Erfassung von Linear- oder Rotationsbewegungen, insbesondere zur Erfassung der Rotation eines Fahrzeugrades. Die Messvorrichtung arbeitet mit einem ortsfesten magnetoresistiven Chipsensor (14) und einer diesem unter Freilassung eines Luftspaltes (13, 23) benachbarten Magnetfeldgebereinrichtung (10, 22), deren einzelne Magnetsegmente (12, 24) in ihrer Polung wechselweise im Wesentlichen in z-Richtung eines dreidimensionalen x/y/z-Koordinatensystems (17, 25, 27) magnetisiert sind, wobei der Chipsensor (14) mit seinen Großflächen (16) im Wesentlichen in der x/y-Ebene oder in der x/z-Ebene des Koordinatensystems (17, 25, 27) oder in einer Zwischenlage zu diesen Ebenen ausgerichtet ist. Hierbei liegen die Messrichtung und die Großfläche (16) des Chipsensors (14) jeweils in x-Richtung des x/y/z-Koordinatensystems.The invention relates to a device for non-contact detection of linear or rotational movements, in particular for detecting the rotation of a vehicle wheel. The measuring device operates with a stationary magnetoresistive chip sensor (14) and a magnetic field transmitter device (10, 22) adjacent to it leaving an air gap (13, 23), whose individual magnet segments (12, 24) alternate in polarity essentially in the z direction of one three-dimensional x / y / z coordinate system (17, 25, 27) are magnetized, wherein the chip sensor (14) with its large areas (16) substantially in the x / y plane or in the x / z plane of the coordinate system ( 17, 25, 27) or aligned in an intermediate position to these planes. In this case, the measuring direction and the large area (16) of the chip sensor (14) each lie in the x direction of the x / y / z coordinate system.
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung zur berührungslosen Erfassung von Linear- oder Rotationsbewegungen, insbesondere zur Erfassung der Rotation eines Fahrzeugrades, mit einem ortsfesten magnetoresitiven Chipsensor und einer diesem unter Freilassung eines Luftspaltes benachbarten, beweglichen Magnetfeldgebereinrichtung.The The invention is based on a device for non-contact Detection of linear or rotational movements, in particular for Detecting the rotation of a vehicle wheel, using a stationary magnetoresistive Chipsensor and this one, leaving an air gap adjacent, movable magnetic encoder means.
Aus
der
Offenbarung der ErfindungDisclosure of the invention
Die erfindungsgemäße Vorrichtung mit den Merkmalen des unabhängigen Anspruchs hat gegenüber bekannten Vorrichtungen den Vorteil, dass ein Sensor realisiert werden kann, welcher bei im Wesentlichen identischer Bauform die Detektierung der Drehzahl eines Multipolrades sowohl bei axialer als auch bei radialer Magnetisierung oder auch bei Messungen an einer Multipol-Lineareinheit ermöglicht. Dabei wird vorzugsweise die hohe Empfindlichkeit von grundsätzlich bekannten Sensoren in der Chipebene genutzt, insbesondere von GMR- oder TMR-Sensoren. Hiermit lassen sich Messanordnungen für Linear- oder Rotationsbewegungen realisieren, deren Chipebene parallel oder senkrecht zur Oberfläche der Multipolanordnung oder in einer beliebigen Winkellage dazwischen liegt. Im Falle von Rotationsbewegungen kann die gleiche Sensorausführung sowohl in Verbindung mit axial magnetisierten wie auch mit radial magnetisierten Multipolrädern verwendet werden und hierdurch die Variantenvielfalt der Sensorbauformen verringert werden, wodurch sich höhere Stückzahlen mit niedrigeren Fertigungskosten und eine einfachere Lagerhaltung ergeben. Gegenüber bekannten Messanordnungen mit Hallsensoren, welche nur die Messung der Komponente der magnetischen Flussdichte senkrecht zur Chipebene erlauben, können der Einbauraum verringert und durch den Wegfall der Beinchenbiegung des integrierten Schaltkreises um 90° sowohl Werkzeug- als auch Prozesskosten eingespart werden. Zusätzlich sind eine Qualitätsverbesserung und eine höhere Produktionsausbeute erzielbar, da Beschädigungen am Sensor durch eine notwendige Biegung für unterschiedliche Einbaulagen vermieden werden.The inventive device with the features of the independent claim has over known Devices have the advantage that a sensor can be realized which with essentially identical design, the detection the speed of a multipole wheel both axial and at radial magnetization or even measurements on a multipole linear unit allows. In this case, preferably the high sensitivity of basically known sensors used in the chip level, in particular GMR or TMR sensors. This allows measuring arrangements realize for linear or rotational movements whose Chip plane parallel or perpendicular to the surface of the multipole assembly or in any angular position in between. In the case of rotational movements can be the same sensor design both in conjunction used with axially magnetized as well as radially magnetized multipole wheels and thereby reduce the variety of sensor designs be, resulting in higher volumes with lower Resulting in production costs and easier storage. Across from known measuring arrangements with Hall sensors, which only the measurement the component of the magnetic flux density perpendicular to the chip plane allow the installation space can be reduced and by the Elimination of the leg bend of the integrated circuit by 90 ° both Tool and process costs can be saved. additionally are a quality improvement and a higher production yield achievable, since damage to the sensor by a necessary Bending for different mounting positions can be avoided.
Durch die in den abhängigen Ansprüchen vorgeschlagenen Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen der im unabhängigen Anspruch angegebenen Vorrichtung möglich. Um eine hohe Messempfindlichkeit der Vorrichtung zu gewährleisten eignen sich als Sensoren vorzugsweise GMR-Spin-Valve-Sensoren oder hochempfindliche TMR-Sensoren.By those proposed in the dependent claims Measures are advantageous developments and improvements the device specified in the independent claim possible. Around to ensure a high measuring sensitivity of the device are suitable as sensors preferably GMR spin valve sensors or highly sensitive TMR sensors.
Hinsichtlich der Bauweise des Chipsensors ist es besonders zweckmäßig, wenn der IC des Sensors in dessen vorderem Bereich nahe der von den elektrischen Anschlussleitungen abgewandten Kante des Sensors angeordnet ist, sodass auch bei einer Einbaulage des Chips mit seinen Großflächen senkrecht zur Ausrichtung der magnetischen Geberelemente ein kleiner Luftspalt und eine hohe Messempfindlichkeit realisierbar werden.Regarding the design of the chip sensor, it is particularly useful if the IC of the sensor in its front area near the of the electrical connection lines facing away from the edge of the sensor is arranged so that even with a mounting position of the chip with his Large areas perpendicular to the orientation of the magnetic Encoder elements a small air gap and a high sensitivity become feasible.
Zur Erzielung einer besonders kompakten, Raum sparenden Bauform bei der Erfassung von Rotationsbewegungen, beispielsweise innerhalb eines Radlagers, ist es vorteilhaft, wenn die Magnetfeldgebereinrichtung als axial magnetisiertes Polrad ausgebildet ist, wodurch sich die Erstreckung des Sensors in dieser Richtung deutlich verkürzen lässt. Andererseits kann durch eine radiale Magnetisierung von flachen Magnetsegmenten der Durchmesser der Sensoreinheit reduziert werden.to Achieving a particularly compact, space-saving design the detection of rotational movements, for example within a wheel bearing, it is advantageous if the magnetic encoder means is formed as an axially magnetized pole wheel, whereby the Significantly shorten the extension of the sensor in this direction leaves. On the other hand, by a radial magnetization reduced by flat magnet segments of the diameter of the sensor unit become.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are in illustrated in the drawings and explained in more detail in the following description.
Es zeigenIt demonstrate
Ausführungsformen der Erfindungembodiments the invention
In
Die
in
Beim
Einbau des Chipsensors
In
der Ausführung gemäß
Die
erfindungsgemäße Vorrichtung stellt eine Ausführungsform
eines magnetoresistiven Chipsensors
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10357149 A1 [0002] - DE 10357149 A1 [0002]
Claims (7)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007023385A DE102007023385A1 (en) | 2007-05-18 | 2007-05-18 | Device for non-contact detection of linear or rotational movements |
PCT/EP2008/054165 WO2008141860A1 (en) | 2007-05-18 | 2008-04-07 | Device for the contact-free detection of linear or rotational movements |
JP2010508759A JP2010527454A (en) | 2007-05-18 | 2008-04-07 | Device for non-contact detection of linear or rotational movement |
CN200880016468A CN101688790A (en) | 2007-05-18 | 2008-04-07 | Device for the contact-free detection of linear or rotational movements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007023385A DE102007023385A1 (en) | 2007-05-18 | 2007-05-18 | Device for non-contact detection of linear or rotational movements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007023385A1 true DE102007023385A1 (en) | 2008-11-20 |
Family
ID=39592748
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007023385A Ceased DE102007023385A1 (en) | 2007-05-18 | 2007-05-18 | Device for non-contact detection of linear or rotational movements |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2010527454A (en) |
CN (1) | CN101688790A (en) |
DE (1) | DE102007023385A1 (en) |
WO (1) | WO2008141860A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011066969A1 (en) * | 2009-12-04 | 2011-06-09 | Hirschmann Automotive Gmbh | Hall-based rotational angle measuring system, in particular for hand-operated throttles |
DE102011079633A1 (en) | 2011-07-22 | 2013-01-24 | Robert Bosch Gmbh | Magnetic sensor for measuring a magnetic field of a magnetic multipole and associated device for determining motion parameters |
DE102011079631A1 (en) | 2011-07-22 | 2013-01-24 | Robert Bosch Gmbh | Device for determining motion parameters |
DE102018106438A1 (en) | 2017-12-13 | 2019-06-13 | Schaeffler Technologies AG & Co. KG | Sensor arrangement with a Multipolencoder and rotary bearing with such a sensor arrangement |
DE102019120790A1 (en) * | 2019-08-01 | 2021-02-04 | Schaeffler Technologies AG & Co. KG | Sensor arrangement with multipole encoder and rotation bearing |
DE102021118230A1 (en) | 2021-07-14 | 2023-01-19 | Schaeffler Technologies AG & Co. KG | Device for non-contact detection of movements |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015102013A1 (en) * | 2015-02-12 | 2016-08-18 | Valeo Schalter Und Sensoren Gmbh | Sensor device with a torque sensor device and an incremental sensor device and motor vehicle with such a sensor device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10357149A1 (en) | 2003-12-06 | 2005-06-30 | Robert Bosch Gmbh | The magnetic sensor system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0660824B2 (en) * | 1985-08-14 | 1994-08-10 | 株式会社日立製作所 | Absolute position detector |
US6246233B1 (en) * | 1994-12-30 | 2001-06-12 | Northstar Technologies Inc. | Magnetoresistive sensor with reduced output signal jitter and temperature compensation |
JP3397026B2 (en) * | 1995-12-06 | 2003-04-14 | トヨタ自動車株式会社 | Magnetic rotation detector |
JP2001124589A (en) * | 1999-10-22 | 2001-05-11 | Asahi Optical Co Ltd | Surveying machine mounted with magnetic encoder |
DE102004047770B4 (en) * | 2004-09-30 | 2014-08-21 | Infineon Technologies Ag | Sensor for generating an output signal due to a measuring magnetic field and method for matching and for operating such |
JP4288676B2 (en) * | 2005-09-30 | 2009-07-01 | 日立金属株式会社 | Magnetic encoder |
-
2007
- 2007-05-18 DE DE102007023385A patent/DE102007023385A1/en not_active Ceased
-
2008
- 2008-04-07 WO PCT/EP2008/054165 patent/WO2008141860A1/en active Application Filing
- 2008-04-07 CN CN200880016468A patent/CN101688790A/en active Pending
- 2008-04-07 JP JP2010508759A patent/JP2010527454A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10357149A1 (en) | 2003-12-06 | 2005-06-30 | Robert Bosch Gmbh | The magnetic sensor system |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011066969A1 (en) * | 2009-12-04 | 2011-06-09 | Hirschmann Automotive Gmbh | Hall-based rotational angle measuring system, in particular for hand-operated throttles |
DE102011079633A1 (en) | 2011-07-22 | 2013-01-24 | Robert Bosch Gmbh | Magnetic sensor for measuring a magnetic field of a magnetic multipole and associated device for determining motion parameters |
DE102011079631A1 (en) | 2011-07-22 | 2013-01-24 | Robert Bosch Gmbh | Device for determining motion parameters |
WO2013013854A1 (en) | 2011-07-22 | 2013-01-31 | Robert Bosch Gmbh | Magnetic sensor for measuring a magnetic field of a magnetic multipole and corresponding device for determining motion parameters |
WO2013013855A1 (en) | 2011-07-22 | 2013-01-31 | Robert Bosch Gmbh | Device for determining motion parameters |
US9612135B2 (en) | 2011-07-22 | 2017-04-04 | Robert Bosch Gmbh | Device for determining motion parameters |
DE102018106438A1 (en) | 2017-12-13 | 2019-06-13 | Schaeffler Technologies AG & Co. KG | Sensor arrangement with a Multipolencoder and rotary bearing with such a sensor arrangement |
DE102019120790A1 (en) * | 2019-08-01 | 2021-02-04 | Schaeffler Technologies AG & Co. KG | Sensor arrangement with multipole encoder and rotation bearing |
DE102021118230A1 (en) | 2021-07-14 | 2023-01-19 | Schaeffler Technologies AG & Co. KG | Device for non-contact detection of movements |
WO2023284907A1 (en) | 2021-07-14 | 2023-01-19 | Schaeffler Technologies AG & Co. KG | Device for the contactless detection of movements |
Also Published As
Publication number | Publication date |
---|---|
WO2008141860A1 (en) | 2008-11-27 |
CN101688790A (en) | 2010-03-31 |
JP2010527454A (en) | 2010-08-12 |
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