DE112004000113T5 - Magnetic sensor with rotary element for determining the linear position of a movable element - Google Patents
Magnetic sensor with rotary element for determining the linear position of a movable element Download PDFInfo
- Publication number
- DE112004000113T5 DE112004000113T5 DE112004000113T DE112004000113T DE112004000113T5 DE 112004000113 T5 DE112004000113 T5 DE 112004000113T5 DE 112004000113 T DE112004000113 T DE 112004000113T DE 112004000113 T DE112004000113 T DE 112004000113T DE 112004000113 T5 DE112004000113 T5 DE 112004000113T5
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- Germany
- Prior art keywords
- magnet
- rotation
- movable element
- magnetic
- axis
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- 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.)
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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
- G01D5/14—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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
Die Erfindung betrifft einen Magnetsensor zum Bestimmen der Position eines beweglichen Elements (2), wobei der Sensor umfaßt:
– ein System (4) zur Umwandlung der Bewegung des beweglichen Elements (2) in eine Rotationsbewegung mit einem Rotationswinkel (A) umwandelt, der eine Arcussinusfunktion der Linearposition (P) des beweglichen Elements ist, und
– einen Magneten (11), der eine magnetische Induktion gemäß einer vorgegebenen Richtung aufweist und wenigstens eine Meßzelle (13), die angebracht ist, um sensibel gegenüber der magnetischen Induktionsrichtung zu sein, die durch den Magneten (11) erzeugt wird, wobei die Zelle (13) oder der Magnet (11) fest steht, während jeweils der Magnet (11) oder die Zelle (13) gemäß einer Rotationsachse (X) geführt ist und zur Rotation um die Achse durch das Bewegungsumwandlungssystem (4) angetrieben wird.The invention relates to a magnetic sensor for determining the position of a movable element (2), the sensor comprising:
- converts a system (4) for converting the movement of the movable element (2) into a rotational movement with a rotation angle (A) which is an arcsine function of the linear position (P) of the movable element, and
A magnet (11) having a magnetic induction in a predetermined direction and at least one measuring cell (13) mounted to be sensitive to the magnetic induction direction generated by the magnet (11), the cell (13) or the magnet (11) is stationary while each of the magnet (11) or the cell (13) is guided along an axis of rotation (X) and driven for rotation about the axis by the motion conversion system (4).
Description
Die Erfindung betrifft das technische Gebiet der Magnetsensoren, die ausgebildet sind, um die Position eines beweglichen Elements zu lokalisieren, das sich linear gemäß einer Translationsachse bewegt.The invention relates to the technical field of magnetic sensors, which are designed to locate the position of a movable element that moves linearly according to a translation axis.
Der Gegenstand der Erfindung findet insbesondere eine vorteilhafte, aber nicht ausschließliche, Anwendung im Bereich der Autofahrzeuge im Hinblick darauf, verschiedene Organe mit linearer Bewegung auszurüsten, deren Position bekannt sein muß, und zum Beispiel Teil eines Automatikgetriebes, einer gesteuerten Kupplung, einer Federung, einer Servolenkung, eines Sitzeinstellungssystems usw. sind.The object of the invention finds in particular an advantageous, but not exclusive, application in the field of motor vehicles with a view to equipping various organs with linear motion, whose position must be known, and for example part of an automatic transmission, a controlled clutch, a suspension, a Power steering, a seat adjustment system, etc. are.
Im Stand der Technik gibt es zahlreiche Typen von Sensoren, die ausgebildet sind, um im Verhältnis zu einer Referenz die Linearposition eines beweglichen Elements zu erkennen, das sich mit Translation bewegt.In the prior art, there are numerous types of sensors that are configured to detect relative to a reference the linear position of a movable element that moves with translation.
Zum Beispiel beschreibt das Dokument
Die Meßzelle liefert so ein elektrisches Signal, das repräsentativ für die Winkelposition des Magneten und folglich des beweglichen Stücks ist.The measuring cell thus provides an electrical signal which is representative of the angular position of the magnet and hence of the moving piece.
Der Hauptnachteil des im Dokument
Die Aufgabe der vorliegenden Erfindung ist es daher, einen Sensor vorzuschlagen, der ein lineares Ausgangssignal in Abhängigkeit der Linearpositionen eines beweglichen Elements aufweist, das sich mit Translation bewegt und in der Bewegungsrichtung des beweglichen Elements einen begrenzten Raumbedarf aufweist, insbesondere in der Größenordnung der Länge des Maximallaufs des beweglichen Elements.The object of the present invention is therefore to propose a sensor which has a linear output signal in response to the linear positions of a movable element which moves with translation and in the direction of movement of the movable element has a limited space requirement, in particular of the order of the length of the Maximum run of the moving element.
Eine andere Aufgabe zielt darauf, einen Positionssensor einfacher und wirtschaftlicher Konzeption vorzuschlagen.Another object is to propose a position sensor of simple and economical design.
Um diese Ziele zu erreichen, betrifft der Gegenstand der Erfindung einen Magnetsensor zum Bestimmen der Position eines beweglichen Elements, wobei der Sensor umfaßt:
- – ein System zur Umwandlung der Bewegung des beweglichen Elements in eine Rotationsbewegung und
- – einen Magneten, der eine magnetische Induktion gemäß einer vorgegebenen Richtung aufweist und wenigstens eine Meßzelle, die angebracht ist, um sensibel gegenüber der magnetischen Induktionsrichtung zu sein, die durch den Magneten erzeugt wird, wobei die Zelle oder der Magnet fest steht, während jeweils der Magnet oder die Zelle gemäß einer Rotationsachse geführt ist und zur Rotation um die Achse durch das Bewegungsumwandlungssystem angetrieben wird.
- A system for converting the movement of the movable element into a rotary motion and
- A magnet having a magnetic induction according to a predetermined direction and at least one measuring cell mounted to be sensitive to the magnetic induction direction generated by the magnet, the cell or magnet being fixed while each of Magnet or the cell is guided according to a rotation axis and is driven to rotate about the axis by the motion conversion system.
Gemäß der Erfindung
- – wandelt das System die Linearbewegung des beweglichen Elements in eine Rotationsbewegung mit einem Rotationswinkel um, der eine Arcussinusfunktion der Linearposition des beweglichen Elements ist, und
- – mißt die Meßzelle linear den Sinus des Rotationswinkels des beweglichen Magneten oder der beweglichen Zelle und liefert so ein elektrisches Signal, das linear in Abhängigkeit der Position des translatierenden beweglichen Elements variiert.
- The system converts the linear movement of the movable element into a rotational movement with a rotation angle which is an arcsine function of the linear position of the movable element, and
- The measuring cell linearly measures the sine of the angle of rotation of the moving magnet or mobile cell, thus providing an electrical signal which varies linearly in dependence on the position of the translating mobile element.
Verschiedene weitere Merkmale werden aus der nachfolgenden Beschreibung deutlich, die in Bezug auf die anliegenden Zeichnungen gemacht wird, die beispielhaft nicht begrenzende Ausführungsformen des Gegenstands der Erfindung zeigen.Various other features will become apparent from the following description made with reference to the accompanying drawings, which show, by way of non-limiting example, the embodiments of the subject invention.
Die
Die
Die
Wie dies aus der
Gemäß der Erfindung umfaßt der Magnetsensor
Der Hebel
Der Rotationswinkel A des Magneten
Im in
In dem in
Der Magnetsensor
Anders ausgedrückt ist die Detektionszelle
Die sensible Zelle
Im veranschaulichten Ausführungsbeispiel, in welchem das System zur Umwandlung der Bewegung durch einen Hebel gebildet ist, ist das Ausgangssignal S, das durch die Meßzelle
In der Praxis ist das Austrittssignal S derart, daß:
Der Ausdruck Z ist ein Ausdruck einer von der Meßzelle
Das von der Meßzelle
Der Sensor
Die
Gemäß einem bevorzugten Ausführungsmerkmal ist der Magnetring
Die Erfindung ist nicht auf die beschriebenen und dargestellten Beispiele begrenzt, da verschiedene Modifikationen dort vorgenommen werden können, ohne den Rahmen der Erfindung zu verlassen.The invention is not limited to the examples described and illustrated, since various modifications can be made therein without departing from the scope of the invention.
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
- WO 02/18869 [0004, 0006] WO 02/18869 [0004, 0006]
Claims (9)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR03/00092 | 2003-01-07 | ||
FR0300092A FR2849691B1 (en) | 2003-01-07 | 2003-01-07 | MAGNETIC SENSOR WITH ROTATING ELEMENT FOR DETERMINING THE LINEAR POSITION OF A MOBILE |
PCT/FR2004/000018 WO2004070394A2 (en) | 2003-01-07 | 2004-01-07 | Magnetic sensor with rotary element for determining the linear position of a mobile element |
Publications (1)
Publication Number | Publication Date |
---|---|
DE112004000113T5 true DE112004000113T5 (en) | 2013-10-02 |
Family
ID=32524713
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE112004000113T Withdrawn DE112004000113T5 (en) | 2003-01-07 | 2004-01-07 | Magnetic sensor with rotary element for determining the linear position of a movable element |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE112004000113T5 (en) |
FR (1) | FR2849691B1 (en) |
WO (1) | WO2004070394A2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2950046A1 (en) | 2014-05-28 | 2015-12-02 | Prüftechnik Dieter Busch AG | Method for determining a closed trajectory by means of a laser and of a laser light sensor and device for determining a closed trajectory |
EP2950043A1 (en) | 2014-05-28 | 2015-12-02 | Prüftechnik Dieter Busch AG | Method for determining a closed trajectory by laser, and a laser light sensor and device for determining a closed trajectory |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002018869A1 (en) | 2000-09-01 | 2002-03-07 | American Electronic Components | Rotary position sensor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5159268A (en) * | 1991-02-21 | 1992-10-27 | Honeywell Inc. | Rotational position sensor with a Hall effect device and shaped magnet |
DE10007968C1 (en) * | 2000-02-22 | 2001-08-09 | Daimler Chrysler Ag | Mechanical shaft with integrated magnet arrangement |
-
2003
- 2003-01-07 FR FR0300092A patent/FR2849691B1/en not_active Expired - Lifetime
-
2004
- 2004-01-07 WO PCT/FR2004/000018 patent/WO2004070394A2/en active Application Filing
- 2004-01-07 DE DE112004000113T patent/DE112004000113T5/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002018869A1 (en) | 2000-09-01 | 2002-03-07 | American Electronic Components | Rotary position sensor |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2950046A1 (en) | 2014-05-28 | 2015-12-02 | Prüftechnik Dieter Busch AG | Method for determining a closed trajectory by means of a laser and of a laser light sensor and device for determining a closed trajectory |
EP2950043A1 (en) | 2014-05-28 | 2015-12-02 | Prüftechnik Dieter Busch AG | Method for determining a closed trajectory by laser, and a laser light sensor and device for determining a closed trajectory |
DE102014210248A1 (en) | 2014-05-28 | 2015-12-03 | Prüftechnik Dieter Busch AG | Method for determining a closed trajectory by means of a laser and a laser light sensor, and device for determining a closed trajectory |
US9476697B2 (en) | 2014-05-28 | 2016-10-25 | Pruftechnik Dieter Busch Ag | Method for determining a closed trajectory by means of a laser and a laser light sensor and apparatus for determining a closed trajectory |
US9574909B2 (en) | 2014-05-28 | 2017-02-21 | Pruftechnik Dieter Busch Ag | Method for determining a closed trajectory by means of a laser and a laser light sensor and apparatus for determining a closed trajectory curve |
Also Published As
Publication number | Publication date |
---|---|
FR2849691A1 (en) | 2004-07-09 |
WO2004070394A2 (en) | 2004-08-19 |
FR2849691B1 (en) | 2006-12-01 |
WO2004070394A3 (en) | 2004-12-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R120 | Application withdrawn or ip right abandoned |
Effective date: 20140319 |