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DE1841127U - SOFT MAGNETIC SCALE. - Google Patents

SOFT MAGNETIC SCALE.

Info

Publication number
DE1841127U
DE1841127U DES38105U DES0038105U DE1841127U DE 1841127 U DE1841127 U DE 1841127U DE S38105 U DES38105 U DE S38105U DE S0038105 U DES0038105 U DE S0038105U DE 1841127 U DE1841127 U DE 1841127U
Authority
DE
Germany
Prior art keywords
recesses
scale
soft magnetic
scale according
magnetic
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.)
Expired
Application number
DES38105U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Corp
Original Assignee
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens Corp filed Critical Siemens Corp
Priority to DES38105U priority Critical patent/DE1841127U/en
Publication of DE1841127U publication Critical patent/DE1841127U/en
Expired legal-status Critical Current

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
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G01D5/2457—Incremental encoders having reference marks
    • 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
    • G01D2205/80—Manufacturing details of magnetic targets for magnetic encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Description

Weichmagnetischer Maßstab Gegenstand der Neuerung ist ein weichmagnetischer Maßstab, der für die Messung, Steuerung und Regelung von Längs-und Drehbewegungen, insbesondere bei Werkzeugmaschinen, vorteilhaft geeignet ist. Die Abtastung des Maßstabes geschieht, wie an anderer Stelle vorgeschlagen, mittels magnetischer Leseköpfe. Diese Leseköpfe bestehen aus einem im wesentlichen geschlossenen magnetisch er- regten Kreis mit Fühlspalt, der an dem Maßstab vorbeigeführt wird, und können mit induktiven ltbfragewicklungen oder Hallgeneratoren ausgerüstet sein.Soft magnetic scale The object of the innovation is a soft magnetic scale which is advantageously suitable for measuring, controlling and regulating longitudinal and rotary movements, in particular in machine tools. As suggested elsewhere, the scale is scanned by means of magnetic reading heads. These read heads consist of an essentially closed magnetically excited circle with feeler gap, which is led past the scale, and can with inductive ltb question windings or Hall generators be equipped.

Der neue Maßstab ist dadurch gekennzeichnet, daß das magnetische Material in gleichen Abständen mit streifenförmigen Ausnehmungen versehen ist, so daß die stehenbleibenden Stege ein Strichraster bilden.The new scale is characterized in that the magnetic material is provided at equal intervals with strip-shaped recesses, so that the remaining webs form a grid of lines.

Die Ausnehmungen können mechanisch, z. B. durch Fräsen, Stanzen und dergl. hergestellt sein. Eine andere Möglichkeit besteht darin, das Strichraster photographisch auf den Maßstab zu übertragen und die Ausnehmungen durch einen Ätzvorgang zu erzeugen. Hierbei kann auf eine unmagnetische Unterlage eine weichmagnetische Folie, beispielsweise aus Mu-Metall, aufgeklebt sein. Nach dem Ätzvorgang bleiben nur die Stege in der Folie stehen, so daß die Tiefe der Ausnehmungen der Folienstärke entspricht. Diese Tiefe kann in der Größenordnung von 30 bis 50. u liegen.The recesses can be mechanical, e.g. B. by milling, punching and like. Be made. Another option is to use the line grid to transfer photographically to the scale and the recesses by an etching process to create. A soft magnetic base can be placed on a non-magnetic base Foil, for example made of mu-metal, be glued on. Remain after the etching process only the webs are in the film, so that the depth of the recesses of the film thickness is equivalent to. This depth can be on the order of 30 to 50 microns.

Statt dessen kann man auf die Unterlage auch die Stege selbst aufbringen, etwa durch Auftragen magnetisch leitender Schichten in Strichrasterform.Instead, you can apply the bars themselves to the base, for example by applying magnetically conductive layers in the form of a grid of lines.

Man kann jedoch den Maßstab auch vollständig aus magnetischem Material herstellen und an seiner Oberfläche mit Ausnehmungen versehen. Die einzelnen Stege sind dann zwar magnetisch leitend miteinander verbunden, doch läßt sich trotzdem ein ausreichender Signalpegel der Ausgangsspannung des Lesekopfes erzielen.However, the scale can also be made entirely of magnetic material produce and provide recesses on its surface. The individual bars are then connected to one another in a magnetically conductive manner, but can still be achieve a sufficient signal level for the output voltage of the read head.

Bei Maßstäben nach dem Dezimalsystem können die Ausnehmungen zweckmäßig einen Abstand von 1 mm haben. Grundsätzlich ist jedoch auch jeder andere Abstand denkbar, wobei die Auflösung bis zu einer praktischen Grenze von etwa 0,1 mm getrieben werden kann.In the case of scales according to the decimal system, the recesses can be useful have a distance of 1 mm. In principle, however, any other distance is also possible conceivable, the resolution being driven up to a practical limit of about 0.1 mm can be.

Der Gegenstand der Neuerung ist in der Zeichnung schematisch dargestellt. Gemäß Fig. 1 kann man auf eine unmagnetische Unterlage 1 mittels einer Klebefolie eine weichmagnetische Folie 2 aufkleben,. die mit dem Strichraster 3 versehen ist. Einen Schnitt durch einen derartigen Maßstab zeigt vergrößert Fig. 2. Dabei sind die Klebefolie mit 4, die Stege mit 5 und die Ausnehmungen mit 6 bezeichnet.The subject of the innovation is shown schematically in the drawing. According to Fig. 1 you can on a non-magnetic base 1 by means of an adhesive film glue on a soft magnetic film 2 ,. which is provided with the line grid 3. A section through such a scale is shown enlarged in FIG the adhesive film with 4, the webs with 5 and the recesses with 6 designated.

Der Maßstab nach Fig. 3 besteht vollständig aus magnetischem Material 7, das mit Ausnehmungen 6 versehen ist.The scale according to FIG. 3 consists entirely of magnetic material 7, which is provided with recesses 6.

Die Maßstäbe gemäß der Neuerung können auf beliebige Länge zugeschnitten werden, so daß man sich der Maschinenlänge leicht anpassen kann. Sollen Drehbewegungen gemessen oder gesteuert werden, kann man statt langgestreckter Maßstäbe Trommeln oder dergl. anwenden, wie in Fig. 4 angedeutet. Auf der Trommel 8, beispielsweise aus unmagnetischem Material, kann wieder eine weichmagnetische Folie 2 mit dem Strichraster 3 aufgeklebt sein.The rulers according to the innovation can be cut to any length so that you can easily adapt to the length of the machine. Shall rotary movements measured or controlled, one can use drums instead of elongated scales or the like. Use as indicated in FIG. On the drum 8, for example made of non-magnetic material, a soft magnetic film 2 with the line grid can again 3 must be glued on.

Es ist einleuchtend, daß beim Gegenstand der Neuerung eine besondere Unterlage eingespart werden kann. Beispielsweise kann man das Strichraster unmittelbar auf dem Bett oder Schlitten einer Maschine, am Drehbanksupport usw. herstellen.It is evident that there is a special one in the subject of the innovation Pad can be saved. For example, you can use the line grid directly on the bed or slide of a machine, on the lathe support, etc.

6 Patentansprüche 4 Figuren6 claims 4 figures

Claims (6)

S c hut z ans p r ü c h e.S c hut z ans p r ü c h e. 1. Weichmagnetischer Maßstab für die Messung, Steuerung oder Regelung von Längs-und Drehbewegungen, insbesonaere bei Werkzugmaschinen, unter Verwendung magnetischer Leseköpfe, dadurch gekennzeichnet, daß das magnetische Material des Maßstabes in gleichen Abständen mit streifenförmigen Ausnehmungen versehen ist, so daß die stehenbleibenden Stege ein Strichraster bilden.1. Soft magnetic scale for measurement, control or regulation of longitudinal and rotary movements, especially with machine tools, using magnetic read heads, characterized in that the magnetic material of the Is provided with strip-shaped recesses at equal intervals, so that the remaining webs form a grid of lines. 2. Maßstab nach Anspruch 1, dadurch'gekennzeichnet, daß die Ausnehmungen eingeätzt sind.2. Scale according to claim 1, characterized in that the recesses are etched. 3. Maßstab nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß auf einer unmagnetischen Unterlage eine weichmagnetische Folie aufgeklebt ist, wobei die Tiefe der Ausnehmungen der Foljenstärke entspricht.3. Scale according to claims 1 and 2, characterized in that a soft magnetic film is glued to a non-magnetic base, wherein the depth of the recesses corresponds to the thickness of the foil. 4. Maßstab nach den Ansprüchen 1 und 2, daaurch gekennzeichnet, daß er vollständig aus magnetischem Material besteht.4. Scale according to claims 1 and 2, characterized in that it is made entirely of magnetic material. 5. Maßstab nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß die Ausnehmungen einen Abstand von 1 mm haben.5. Scale according to claims 1 to 4, characterized in that the recesses have a distance of 1 mm. 6. Maßstab nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß die Ausnehmungen 30 bis 50 u tief sind.6. Scale according to claims 1 to 5, characterized in that the recesses are 30 to 50 u deep.
DES38105U 1961-07-01 1961-07-01 SOFT MAGNETIC SCALE. Expired DE1841127U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES38105U DE1841127U (en) 1961-07-01 1961-07-01 SOFT MAGNETIC SCALE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES38105U DE1841127U (en) 1961-07-01 1961-07-01 SOFT MAGNETIC SCALE.

Publications (1)

Publication Number Publication Date
DE1841127U true DE1841127U (en) 1961-11-09

Family

ID=33012775

Family Applications (1)

Application Number Title Priority Date Filing Date
DES38105U Expired DE1841127U (en) 1961-07-01 1961-07-01 SOFT MAGNETIC SCALE.

Country Status (1)

Country Link
DE (1) DE1841127U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809803A1 (en) * 1987-03-26 1988-12-15 Yamaha Corp MAGNETIC CODER AND METHOD FOR THE PRODUCTION THEREOF
DE102004063462B3 (en) * 2004-12-23 2006-03-23 Märzhäuser Senso Tech GmbH Scale carrier for magnetic length or angle measurement, is formed by filling a groove with a magnetic powder paste, hardening the paste and then magnetically coding the material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3809803A1 (en) * 1987-03-26 1988-12-15 Yamaha Corp MAGNETIC CODER AND METHOD FOR THE PRODUCTION THEREOF
DE102004063462B3 (en) * 2004-12-23 2006-03-23 Märzhäuser Senso Tech GmbH Scale carrier for magnetic length or angle measurement, is formed by filling a groove with a magnetic powder paste, hardening the paste and then magnetically coding the material

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