DE102010046251A1 - Rotational position measuring device for rotor, has magnetic sensor arranged around specified range opposite to optical code-disk sensor, and evaluation unit determining measurement for displacement of rotor from output signals of sensors - Google Patents
Rotational position measuring device for rotor, has magnetic sensor arranged around specified range opposite to optical code-disk sensor, and evaluation unit determining measurement for displacement of rotor from output signals of sensors Download PDFInfo
- Publication number
- DE102010046251A1 DE102010046251A1 DE102010046251A DE102010046251A DE102010046251A1 DE 102010046251 A1 DE102010046251 A1 DE 102010046251A1 DE 102010046251 A DE102010046251 A DE 102010046251A DE 102010046251 A DE102010046251 A DE 102010046251A DE 102010046251 A1 DE102010046251 A1 DE 102010046251A1
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- DE
- Germany
- Prior art keywords
- sensor
- rotor
- measuring device
- position measuring
- rotational position
- Prior art date
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- Ceased
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Classifications
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- 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
- 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
- G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
- G01D2205/20—Detecting rotary movement
- G01D2205/26—Details of encoders or position sensors specially adapted to detect rotation beyond a full turn of 360°, e.g. multi-rotation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
Die Erfindung betrifft eine Drehstellungsmessvorrichtung mit einem Rotor, mit einem ersten und einem zweiten Sensor, die beide die Drehstellung des Rotors tangential erfassen, und mit einer Auswertevorrichtung zur Bestimmung eines Drehstellungswinkels aus den Ausgangssignalen beider Sensoren.The invention relates to a rotary position measuring device with a rotor, with a first and a second sensor, both of which detect the rotational position of the rotor tangentially, and with an evaluation device for determining a rotational position angle from the output signals of both sensors.
Eine derartige Drehstellungsmessvorrichtung ist beispielsweise aus der deutschen Offenlegungsschrift
Besonders bei Drehstellungsmessvorrichtungen, die wegen der Lagerspiele beweglicher Komponenten konstruktionsbedingt empfindlich auch für translatorische Verschiebungen des Rotors sind, ergibt sich das Problem größerer Ungenauigkeit, die es nach Möglichkeit zu kompensieren gilt. Ein Beispiel einer derartigen Drehstellungsmessvorrichtung ist aus der
Es stellte sich die Aufgabe, eine Drehstellungsmessvorrichtung zu schaffen, welche neben einem kostengünstigen Aufbau ein hohes Maß an Genauigkeit und funktionaler Sicherheit aufweist.It set itself the task of creating a rotary position measuring device, which in addition to a cost-effective structure has a high degree of accuracy and functional safety.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der zweite Sensor um 90°, 180° oder 270° gegenüber dem ersten Sensor um den Rotor herum versetzt angeordnet ist, und dass die Auswertevorrichtung aus den Ausgangssignalen des ersten und des zweiten Sensors ein Maß für eine translatorische Verschiebung des Rotors ermittelt.This object is achieved in that the second sensor is offset by 90 °, 180 ° or 270 ° relative to the first sensor to the rotor around, and that the evaluation of the output signals of the first and the second sensor is a measure of a translational Displacement of the rotor determined.
Im Folgenden soll die Erfindung anhand der Zeichnung beispielhaft dargestellt und erläutert werden. Die
Die
Auf der optischen Codescheibe
Der erfasste Drehstellungswert wird sowohl durch die tatsächliche und eigentlich zu erfassende Verdrehung des Rotors als auch durch seitliche Verschiebungen des Rotors bzw. der Codescheibe beeinflusst. Kommt es, etwa aufgrund einer spielbehafteten Lagerung der Codescheibe
Zur Erläuterung des Prinzips mit den vorliegenden Beispielen von um 90° oder 270° zueinander versetzten Sensoren
Ersichtlich ist, dass eine Verschiebung der Codescheibe
Die Kompensation des oben beschriebenen Fehlers erfolgt mittels eines zweiten Sensors
Aus einem Vergleich der vom ersten und zweiten Sensor
Eine Messung des Mittenversatzes der optischen Codescheibe
Im Falle einer Verschiebung der Drehachse
Um 180° versetzte Sensoren
Das in den
Eine Drehstellungserfassung über mehrere Umdrehungen ermöglichen die in den
Der Magnetsensor
Das Messergebnis für den absoluten Drehwinkel muss aufgrund des verwendeten Noniusprinzips, unter Berücksichtigung von Toleranzen, zu der Drehwinkelmessung am Magnetrad
Wie beim Beispiel aus der
Die nötige Kompensation einer Drift der Drehachse
Beschreibt man die Drift der Drehachse
Voraussetzung ist, dass der Codescheibensensor
Die Kompensation eines Versatzes in x-Richtung kann nun, unabhängig von der eigentlichen Erfassung der Drehstellung, aus einer mit der Drift der Drehachse
Der zweite Sensor
Bei der in der
Ein Maß für den Mittenversatz in x-Richtung kann durch eine Erfassung der linearen Verschiebung des Magneten
Besonders vorteilhaft ist es, wenn als Magnetsensor ein so genannter 3D-Hallsensor
Die Verschiebung des Magnetsystems
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Rotorrotor
- 22
- Codescheibecode disk
- 33
- Drehachseaxis of rotation
- 44
- erster Sensor (Codescheibensensor)first sensor (code disk sensor)
- 5, 5', 5'', 5'''5, 5 ', 5' ', 5' ''
- zweiter Sensorsecond sensor
- 5'5 '
- Drehsensor (Codescheibensensor)Rotary sensor (code disk sensor)
- 5''5 ''
- Magnetsensor (Hallsensor)Magnetic sensor (Hall sensor)
- 5'''5 '' '
- 3D-Hallsensor3D Hall sensor
- 66
- Antriebsraddrive wheel
- 77
- Magnetradmagnetic wheel
- 88th
- Auswertevorrichtungevaluation
- 99
- Lagerstelledepository
- 1010
- Magnetmagnet
- 1111
- LanglochLong hole
- 1212
- Magnetsystemmagnet system
- 1313
- federnde Halterungresilient mount
- 1414
- Codierungencoding
- 1515
-
Drehachse (des Magnetrads
7 )Rotary axis (of the magnetic wheel7 )
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES 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 of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102005040150 A1 [0002] DE 102005040150 A1 [0002]
- DE 19506938 A1 [0003] DE 19506938 A1 [0003]
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010046251A DE102010046251A1 (en) | 2010-09-22 | 2010-09-22 | Rotational position measuring device for rotor, has magnetic sensor arranged around specified range opposite to optical code-disk sensor, and evaluation unit determining measurement for displacement of rotor from output signals of sensors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010046251A DE102010046251A1 (en) | 2010-09-22 | 2010-09-22 | Rotational position measuring device for rotor, has magnetic sensor arranged around specified range opposite to optical code-disk sensor, and evaluation unit determining measurement for displacement of rotor from output signals of sensors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010046251A1 true DE102010046251A1 (en) | 2012-03-22 |
Family
ID=45768999
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010046251A Ceased DE102010046251A1 (en) | 2010-09-22 | 2010-09-22 | Rotational position measuring device for rotor, has magnetic sensor arranged around specified range opposite to optical code-disk sensor, and evaluation unit determining measurement for displacement of rotor from output signals of sensors |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010046251A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103512543A (en) * | 2012-06-20 | 2014-01-15 | Ssb风系统两合公司 | Rotational angle sensor for use in rotating shaft |
CN110417191A (en) * | 2019-07-24 | 2019-11-05 | 桂林智神信息技术股份有限公司 | Obtain the method and device of the mechanical location of auxiliary capture apparatus motor |
EP3875917A1 (en) * | 2020-03-02 | 2021-09-08 | Leine & Linde Ab | Rotary encoder and method for determining malfunction of a rotary encoder |
EP4307559A1 (en) | 2022-07-15 | 2024-01-17 | Sociéte Anonyme Belge de Constructions Aéronautiques, S.A.B.C.A. | Electromechanical actuator fail operational sensing system based on two angular sensors |
WO2024114786A1 (en) * | 2022-12-01 | 2024-06-06 | Hesai Technology Co., Ltd. | Method for determining state of code disc, angle measurement method and lidar |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3726260A1 (en) * | 1987-08-07 | 1989-02-16 | Heidenhain Gmbh Dr Johannes | POSITION MEASURING DEVICE WITH SEVERAL SENSING POINTS |
DE3801413A1 (en) * | 1988-01-20 | 1989-08-03 | Heidenhain Gmbh Dr Johannes | ROUNDNESS NORMAL |
DE19506938A1 (en) | 1995-02-28 | 1996-08-29 | Bosch Gmbh Robert | Method and device for measuring the angle of a rotatable body |
DE19907326A1 (en) * | 1999-02-20 | 2000-08-24 | Heidenhain Gmbh Dr Johannes | Angle measurement system, without complex bearing arrangement has sampling units settled about possible errors, resulting due to mismatch of rotational axis of object with that of measurement division |
DE202005001834U1 (en) * | 2005-02-02 | 2005-04-21 | Dr. Johannes Heidenhain Gmbh | Position measurement arrangement for measuring the relative angular positions of two objects rotating relative to each other has a coding disk with overlapping radial and circumferential markings of two separate measurement tracks |
DE102005040150A1 (en) | 2005-08-25 | 2007-03-01 | Leopold Kostal Gmbh & Co. Kg | Contact-less electronic angle sensor for use in motor vehicle, has two hall sensors to provide output voltages to switching circuit, which in turn generates activating signal for evaluation circuit |
DE102008059775A1 (en) * | 2007-11-30 | 2009-06-04 | Continental Teves Ag & Co. Ohg | Absolutely measuring steering angle sensor arrangement |
-
2010
- 2010-09-22 DE DE102010046251A patent/DE102010046251A1/en not_active Ceased
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3726260A1 (en) * | 1987-08-07 | 1989-02-16 | Heidenhain Gmbh Dr Johannes | POSITION MEASURING DEVICE WITH SEVERAL SENSING POINTS |
DE3801413A1 (en) * | 1988-01-20 | 1989-08-03 | Heidenhain Gmbh Dr Johannes | ROUNDNESS NORMAL |
DE19506938A1 (en) | 1995-02-28 | 1996-08-29 | Bosch Gmbh Robert | Method and device for measuring the angle of a rotatable body |
DE19907326A1 (en) * | 1999-02-20 | 2000-08-24 | Heidenhain Gmbh Dr Johannes | Angle measurement system, without complex bearing arrangement has sampling units settled about possible errors, resulting due to mismatch of rotational axis of object with that of measurement division |
DE202005001834U1 (en) * | 2005-02-02 | 2005-04-21 | Dr. Johannes Heidenhain Gmbh | Position measurement arrangement for measuring the relative angular positions of two objects rotating relative to each other has a coding disk with overlapping radial and circumferential markings of two separate measurement tracks |
DE102005040150A1 (en) | 2005-08-25 | 2007-03-01 | Leopold Kostal Gmbh & Co. Kg | Contact-less electronic angle sensor for use in motor vehicle, has two hall sensors to provide output voltages to switching circuit, which in turn generates activating signal for evaluation circuit |
DE102008059775A1 (en) * | 2007-11-30 | 2009-06-04 | Continental Teves Ag & Co. Ohg | Absolutely measuring steering angle sensor arrangement |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103512543A (en) * | 2012-06-20 | 2014-01-15 | Ssb风系统两合公司 | Rotational angle sensor for use in rotating shaft |
CN103512543B (en) * | 2012-06-20 | 2017-04-12 | Ssb风系统两合公司 | Rotational angle sensor for use in rotating shaft |
CN110417191A (en) * | 2019-07-24 | 2019-11-05 | 桂林智神信息技术股份有限公司 | Obtain the method and device of the mechanical location of auxiliary capture apparatus motor |
EP3875917A1 (en) * | 2020-03-02 | 2021-09-08 | Leine & Linde Ab | Rotary encoder and method for determining malfunction of a rotary encoder |
US11519764B2 (en) | 2020-03-02 | 2022-12-06 | Leine & Linde Ab | Rotary encoder and method for determining malfunction of a rotary encoder |
EP4307559A1 (en) | 2022-07-15 | 2024-01-17 | Sociéte Anonyme Belge de Constructions Aéronautiques, S.A.B.C.A. | Electromechanical actuator fail operational sensing system based on two angular sensors |
WO2024012774A1 (en) | 2022-07-15 | 2024-01-18 | Societe Anonyme Belge De Constructions Aeronautiques, S.A.B.C.A. | Electromechanical actuator fail operational sensing system based on two angular sensors |
WO2024114786A1 (en) * | 2022-12-01 | 2024-06-06 | Hesai Technology Co., Ltd. | Method for determining state of code disc, angle measurement method and lidar |
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Owner name: KOSTAL AUTOMOBIL ELEKTRIK GMBH & CO. KG, DE Free format text: FORMER OWNER: LEOPOLD KOSTAL GMBH & CO. KG, 58513 LUEDENSCHEID, DE |
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R003 | Refusal decision now final |