DE102015102322A1 - Linear measuring device for a sensor arrangement - Google Patents

Linear measuring device for a sensor arrangement Download PDF

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Publication number
DE102015102322A1
DE102015102322A1 DE102015102322.9A DE102015102322A DE102015102322A1 DE 102015102322 A1 DE102015102322 A1 DE 102015102322A1 DE 102015102322 A DE102015102322 A DE 102015102322A DE 102015102322 A1 DE102015102322 A1 DE 102015102322A1
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Germany
Prior art keywords
magnetic
magnetic element
metal carrier
measuring device
linear measuring
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DE102015102322.9A
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German (de)
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DE102015102322B4 (en
Inventor
Andreas Wiessler
Hanspeter Thoma
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SIKO GmbH
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SIKO GmbH
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Priority to DE102015102322.9A priority Critical patent/DE102015102322B4/en
Priority to CN201620125171.1U priority patent/CN205655845U/en
Publication of DE102015102322A1 publication Critical patent/DE102015102322A1/en
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Publication of DE102015102322B4 publication Critical patent/DE102015102322B4/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
    • 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
    • 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
    • G01D5/249—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 pulse code
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H01F7/0221—Mounting means for PM, supporting, coating, encapsulating PM
    • 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
    • G01D2205/80—Manufacturing details of magnetic targets for magnetic encoders

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

Linear-Messvorrichtung für eine Sensoranordnung aus einem Magnetelement (2) und einem Metall-Trägerelement (1), wobei das Magnetelement (2) aus einem kunststoffgebundenen hartmagnetischen Ferrit besteht, wobei das Magnetelement (2) und das Metall-Trägerelement (1) einstückig extrudiert ist.Linear measuring device for a sensor arrangement of a magnetic element (2) and a metal support element (1), wherein the magnetic element (2) consists of a plastic-bonded hard magnetic ferrite, wherein the magnetic element (2) and the metal support element (1) extruded in one piece is.

Description

Die Erfindung betrifft eine Linear-Messvorrichtung nach dem Oberbegriff der Patentansprüche 1 bis 3, sowie deren Verfahren zur Herstellung nach den Patentansprüchen 4 und 5. The invention relates to a linear measuring device according to the preamble of claims 1 to 3, and their method of production according to claims 4 and 5.

STAND DER TECHNIK STATE OF THE ART

Aus dem Stand der Technik sind Linear-Messvorrichtungen und -systeme bekannt und gebräuchlich. Es handelt sich dabei um einen Magnetbandaufbau aus einem kunststoffgebunden hartmagnetischen Ferrit auf einem Trägerband aus Stahl, wobei das Magnetband auf das Stahlband geklebt wird und hierzu zweiseitige Klebebänder oder Kleber zur adhäsiven Verbindung der beiden Elemente zum Einsatz kommen. Linear measuring devices and systems are known and used in the prior art. It is a magnetic tape assembly made of a plastic bonded hard magnetic ferrite on a steel carrier tape, wherein the magnetic tape is glued to the steel strip and this two-sided adhesive tapes or adhesive for adhesive connection of the two elements are used.

AUFGABE DER ERFINDUNG OBJECT OF THE INVENTION

Aufgabe der Erfindung ist es eine Linear-Messvorrichtung für eine Sensoranordnung zur Verfügung zu stellen, welche schnell und kostengünstig hergestellt werden kann und dabei in der Anwendung eine längere Lebensdauer aufweist. The object of the invention is to provide a linear measuring device for a sensor arrangement, which can be produced quickly and inexpensively, while having a longer service life in the application.

LÖSUNG DER AUFGABE SOLUTION OF THE TASK

Zur Lösung der Aufgabe führen die Merkmale nach den Ansprüchen 1 bis 5. To achieve the object, the features according to claims 1 to 5.

Die erfindungsgemässe Linear-Messvorrichtung besteht in erster Linie aus einem Magnetelement in Form eines flexiblen Magnetbandes und einem Metall-Trägerelement in Form eines Trägerbandes aus Stahl. Es kommen hierbei auch andere metallene Werkstoffe in Betracht. Stahl ist in besonderer Weise geeignet. Stahl stellt die notwendige mechanische Stabilität zur Verfügung und bestimmt mit seinem Ausdehnungskoeffizienten die Ausdehnung der Linear-Messvorrichtung. Damit sind auf Stahl aufgebrachte lineare Magnetelemente bestens an die Verwendung in Maschinen aus Stahlkonstruktionen angepasst. The inventive linear measuring device consists primarily of a magnetic element in the form of a flexible magnetic tape and a metal support element in the form of a carrier tape made of steel. In this case, other metal materials come into consideration. Steel is suitable in a special way. Steel provides the necessary mechanical stability and determines the extent of the linear measuring device with its coefficient of expansion. Thus, linear magnetic elements applied to steel are optimally adapted for use in machines made of steel structures.

Ausserdem stellt ferromagnetischer Stahl den notwendigen magnetischen Rückschluss für ein Magnetsystem dar, welches aus den einzelnen Polen des Magnetelementes und eben des Metall-Trägerelementes aus Stahl gebildet wird. Dadurch sind höhere Feldstärken erreichbar, als mit dem blossen Magnetelement allein. In addition, ferromagnetic steel is the necessary magnetic return for a magnet system, which is formed from the individual poles of the magnetic element and just the metal support member made of steel. As a result, higher field strengths can be achieved than with the mere magnetic element alone.

Denkbar und üblich sind hier auch nicht rostende Legierungen für das Metall-Trägerelement. Diese nicht-rostenden Legierungen sind gerade bei feuchten Umgebungsparametern von Vorteil für eine Langlebigkeit der Linear-Messvorrichtung. Das Magnetelement besteht in erster Linie aus einem in Kunststoff gebundenen hartmagnetischen Ferrit. Hierbei ist es unbeachtlich welche Kunststoffe zum Einsatz kommen. Der Fachmann hat hier eine grosse Auswahl an Kunststoffen in Form von Elastomeren oder Duroplasten. Die Auswahl kann an die notwendigen Anforderungen angepasst werden. Conceivable and common here are not rusting alloys for the metal support element. These non-rusting alloys are particularly advantageous for a long life of the linear measuring device, especially in the case of moist ambient parameters. The magnetic element consists primarily of a hard magnetic ferrite bound in plastic. It is irrelevant which plastics are used. The expert has here a large selection of plastics in the form of elastomers or thermosets. The selection can be adapted to the necessary requirements.

In einem bevorzugten Ausführungsbeispiel ist das Magnetelement und das Metall-Trägerelement einstückig extrudiert. In einem anderen Ausführungsbeispiel ist wird zunächst das Metall-Trägerelement hergestellt und dann auf das Metall-Trägerelement das Magnetelement aufvulkanisiert. In a preferred embodiment, the magnetic element and the metal support element is extruded in one piece. In another exemplary embodiment, the metal carrier element is first produced and then the magnetic element is vulcanized onto the metal carrier element.

In einem weiteren Ausführungsbeispiel ist das Metall-Trägerelement durch das Magnetelement komplett umschlossen. Auf diese Weise kann ebenfalls der Schutz vor Rost gewährleistet werden. In a further embodiment, the metal carrier element is completely enclosed by the magnetic element. In this way, the protection against rust can also be ensured.

Es ist hierbei denkbar, dass das Metall-Trägerelement entweder vollständig durch das Magnetelement umschlossen wird. Es ist aber auch möglich, dass das Metall-Trägerelement nur teilweise mit dem Magnetelement bedeckt wird. Sollte das Metall-Trägerelement bspw. in Form eines Plattenstrangs ausgebildet sein, so kann bspw. die eine Seite der Platte vollständig oder teilweise mit dem Magnetelement vulkanisiert sein, wobei die andere Seite der Platte keinerlei Vulkanisierung aufweist. It is conceivable here that the metal carrier element is either completely enclosed by the magnetic element. But it is also possible that the metal carrier element is only partially covered with the magnetic element. If, for example, the metal carrier element is designed in the form of a plate strand, then one side of the plate can be completely or partially vulcanized with the magnetic element, the other side of the plate having no vulcanization.

Das Metall-Trägerelement kann bspw. aber auch in Form von Drähten oder Gitterrosten ausgebildet sein, welche dann ganz oder teilweise von dem Magnetelement umschlossen oder bedeckt sind. However, the metal carrier element may, for example, also be in the form of wires or gratings, which are then completely or partially enclosed or covered by the magnetic element.

Die beschriebene Sensoranordnung ist in der Regel ein Inkremental- und/oder Absolut-Mess-System. Dabei verfährt ein Messsystem in Form eines Sensors entlang eines Linear-Messmaßstabes und nimmt dabei die Magnetfelder des Magnetelementes auf und registriert die aufgenommenen Daten und berechnet hieraus die Position, Verfahrrichtung sowie relative Geschwindigkeit zwischen Messsystem und Linear-Messmaßstab.. The described sensor arrangement is usually an incremental and / or absolute measuring system. Here, a measuring system in the form of a sensor moves along a linear measuring scale and records the magnetic fields of the magnetic element and registers the recorded data and calculates the position, travel direction and relative speed between the measuring system and the linear measuring scale.

FIGURENBESCHREIBUNG DESCRIPTION OF THE FIGURES

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung der Figuren. Diese zeigen in Further advantages, features and details of the invention will become apparent from the following description of the figures. These show in

1 eine Teilansicht eines ersten erfindungsgemässen Ausführungsbeispiels; 1 a partial view of a first embodiment according to the invention;

2 eine Teilansicht eines zweiten erfindungsgemässen Ausführungsbeispiels; 2 a partial view of a second embodiment according to the invention;

3 eine Teilansicht eines dritten erfindungsgemässen Ausführungsbeispiels; 3 a partial view of a third embodiment according to the invention;

4 eine Teilansicht eines vierten erfindungsgemässen Ausführungsbeispiels. 4 a partial view of a fourth embodiment according to the invention.

In der 1 ist auf ein Metall-Trägerelement 1 ein Magnetelement 2 aufvulkanisiert. Das Magnetelement 2 besteht hierbei aus einem kunststoffgebundenen hartmagnetischen Ferrit. Es wird auf das Metall-Trägerelement 1 in Form eines Metall-Trägerbandes aufvulkanisiert. Es ist auch denkbar, dass das Metall-Trägerelement 1 gemeinsam mit dem Magnetelement 2 einstückig extrudiert ist. In the 1 is on a metal support element 1 a magnetic element 2 vulcanized. The magnetic element 2 consists of a plastic bonded hard magnetic ferrite. It is applied to the metal support element 1 Vulcanized in the form of a metal carrier tape. It is also conceivable that the metal carrier element 1 together with the magnetic element 2 is extruded in one piece.

Daneben ist es aber auch von der Erfindung vorgesehen, dass das Magnetelement 2 auf das Metall-Trägerelement 1 aufextrudiert ist bzw. wird. Das Metall-Trägerelement 1 ist hierbei auf der dem Magnetelement 2 zugewandten Seite komplett von dem Magnetelement 2 bedeckt ist. In addition, however, it is also provided by the invention that the magnetic element 2 on the metal support element 1 is or is extruded. The metal carrier element 1 is here on the magnetic element 2 facing side completely of the magnetic element 2 is covered.

2 zeigt ein weiteres Ausführungsbeispiel, wobei hier das Metall-Trägerelement 1 nicht komplett von dem Magnetelement 2 bedeckt ist. Ein jeweils freibleibender Steg 3, 4 unterscheidet das Ausführungsbeispiel nach 2 von dem Ausführungsbeispiel nach 1. 2 shows a further embodiment, in which case the metal carrier element 1 not completely from the magnetic element 2 is covered. One free bridge each 3 . 4 differs according to the embodiment 2 of the embodiment according to 1 ,

In 3 ist wiederum das Metall-Trägerelement 1 komplett von dem Magnetelement 2 umschlossen. In 3 is again the metal support element 1 completely from the magnetic element 2 enclosed.

4 zeigt ein Ausführungsbeispiel, bei dem das Metall-Trägerelement 1 in Form von Drähten komplett von dem Magnetelement 2 umschlossen ist. Dabei sind die Metall-Trägerelemente 2 in Form von Drähten in dem Magnetelement 2 in etwa mitttig angeordnet. 4 shows an embodiment in which the metal carrier element 1 in the form of wires completely from the magnetic element 2 is enclosed. Here are the metal support elements 2 in the form of wires in the magnetic element 2 arranged approximately in the middle.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Metall-Trägerelement  Metal support member
22
Magnetelement  magnetic element
33
Steg  web
44
Steg  web

Claims (5)

Linear-Messvorrichtung für eine Sensoranordnung aus einem Magnetelement (2) und einem Metall-Trägerelement (1), wobei das Magnetelement (2) aus einem kunststoffgebundenen hartmagnetischen Ferrit besteht, dadurch gekennzeichnet, dass das Magnetelement (2) und das Metall-Trägerelement (1) einstückig extrudiert ist. Linear measuring device for a sensor arrangement comprising a magnetic element ( 2 ) and a metal carrier element ( 1 ), wherein the magnetic element ( 2 ) consists of a plastic-bonded hard magnetic ferrite, characterized in that the magnetic element ( 2 ) and the metal carrier element ( 1 ) is extruded in one piece. Linear-Messvorrichtung für eine Sensoranordnung aus einem Magnetband und einem Metall-Trägerelement (1), wobei das Magnetelement (2) aus einem kunststoffgebundenen hartmagnetischen Ferrit besteht, dadurch gekennzeichnet, dass das Magnetelement (2) auf das Metall-Trägerelement (1) vulkanisiert ist. Linear measuring device for a sensor arrangement comprising a magnetic strip and a metal carrier element ( 1 ), wherein the magnetic element ( 2 ) consists of a plastic-bonded hard magnetic ferrite, characterized in that the magnetic element ( 2 ) on the metal carrier element ( 1 ) is vulcanized. Linear-Messvorrichtung für eine Sensoranordnung aus einem Magnetelement (2) und einem Metall-Trägerelement (1), wobei das Magnetelement (2) aus einem kunststoffgebundenen hartmagnetischen Ferrit besteht, dadurch gekennzeichnet, dass das Metall-Trägerelement (1) durch das Magnetelement (2) umschlossen ist. Linear measuring device for a sensor arrangement comprising a magnetic element ( 2 ) and a metal carrier element ( 1 ), wherein the magnetic element ( 2 ) consists of a plastic-bonded hard magnetic ferrite, characterized in that the metal carrier element ( 1 ) by the magnetic element ( 2 ) is enclosed. Verfahren zur Herstellung einer Linear-Messvorrichtung für eine Sensoranordnung aus einem Magnetelement (2) und einem Metall-Trägerelement (1), wobei das Magnetelement (2) aus einem kunststoffgebundenen hartmagnetischen Ferrit besteht, dadurch gekennzeichnet, dass das Magnetelement (2) einstückig mit dem Metall-Trägerelement (1) extrudiert wird, wobei das Magnetelement (2) das Metall-Trägerelement (1) zumindest teilweise oder ganz umschliesst. Method for producing a linear measuring device for a sensor arrangement comprising a magnetic element ( 2 ) and a metal carrier element ( 1 ), wherein the magnetic element ( 2 ) consists of a plastic-bonded hard magnetic ferrite, characterized in that the magnetic element ( 2 ) in one piece with the metal carrier element ( 1 ) is extruded, wherein the magnetic element ( 2 ) the metal carrier element ( 1 ) at least partially or completely encloses. Verfahren zur Herstellung einer Linear-Messvorrichtung für eine Sensoranordnung aus einem Magnetelement (2) und einem Metall-Trägerelement (1), wobei das Magnetelement (2) aus einem kunststoffgebundenen hartmagnetischen Ferrit besteht, dadurch gekennzeichnet, dass das Magnetelement (2) auf das Metall-Trägerelement (1) aufvulkanisiert wird. Method for producing a linear measuring device for a sensor arrangement comprising a magnetic element ( 2 ) and a metal carrier element ( 1 ), wherein the magnetic element ( 2 ) consists of a plastic-bonded hard magnetic ferrite, characterized in that the magnetic element ( 2 ) on the metal carrier element ( 1 ) is vulcanized.
DE102015102322.9A 2015-02-18 2015-02-18 Linear measuring device for a sensor arrangement and method for producing the same Active DE102015102322B4 (en)

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DE102015102322.9A DE102015102322B4 (en) 2015-02-18 2015-02-18 Linear measuring device for a sensor arrangement and method for producing the same
CN201620125171.1U CN205655845U (en) 2015-02-18 2016-02-17 A linear measuring device for sensor arranges

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Application Number Priority Date Filing Date Title
DE102015102322.9A DE102015102322B4 (en) 2015-02-18 2015-02-18 Linear measuring device for a sensor arrangement and method for producing the same

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DE102015102322A1 true DE102015102322A1 (en) 2016-08-18
DE102015102322B4 DE102015102322B4 (en) 2023-12-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017104715U1 (en) 2017-07-27 2018-10-30 Siko Gmbh Linear measuring device
WO2020239318A1 (en) * 2019-05-31 2020-12-03 Bundesrepublik Deutschland, Vertreten Durch Das Bundesministerium Für Wirtschaft Und Energie, Method for producing a magnetic measuring rod and magnetic measuring rod

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004257817A (en) 2003-02-25 2004-09-16 Ntn Corp Magnetic encoder and bearing for wheel having the same
JP2008175645A (en) 2007-01-17 2008-07-31 Ntn Corp Bearing device for wheel with rotational speed detector
JP5274042B2 (en) 2008-02-07 2013-08-28 Ｎｔｎ株式会社 Wheel bearing device with rotation detector
JP5759867B2 (en) 2011-10-28 2015-08-05 山洋電気株式会社 Magnetic encoder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017104715U1 (en) 2017-07-27 2018-10-30 Siko Gmbh Linear measuring device
DE102017117030A1 (en) 2017-07-27 2019-01-31 Siko Gmbh Linear measuring device
WO2020239318A1 (en) * 2019-05-31 2020-12-03 Bundesrepublik Deutschland, Vertreten Durch Das Bundesministerium Für Wirtschaft Und Energie, Method for producing a magnetic measuring rod and magnetic measuring rod

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CN205655845U (en) 2016-10-19
DE102015102322B4 (en) 2023-12-07

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