DE2534823B2 - Inductive edge or center scanning for moving metallic tracks - Google Patents

Inductive edge or center scanning for moving metallic tracks

Info

Publication number
DE2534823B2
DE2534823B2 DE19752534823 DE2534823A DE2534823B2 DE 2534823 B2 DE2534823 B2 DE 2534823B2 DE 19752534823 DE19752534823 DE 19752534823 DE 2534823 A DE2534823 A DE 2534823A DE 2534823 B2 DE2534823 B2 DE 2534823B2
Authority
DE
Germany
Prior art keywords
initiator
metallic
web
measuring surface
track
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.)
Withdrawn
Application number
DE19752534823
Other languages
German (de)
Other versions
DE2534823A1 (en
Inventor
Johannes 5905 Freudenberg Ohrendorf
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.)
ELMEG Elektro Mechanik GmbH
Original Assignee
ELMEG Elektro Mechanik GmbH
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 ELMEG Elektro Mechanik GmbH filed Critical ELMEG Elektro Mechanik GmbH
Priority to DE19752534823 priority Critical patent/DE2534823B2/en
Priority to BE169482A priority patent/BE844797A/en
Priority to FR7623692A priority patent/FR2320250A1/en
Publication of DE2534823A1 publication Critical patent/DE2534823A1/en
Publication of DE2534823B2 publication Critical patent/DE2534823B2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00Registering, tensioning, smoothing or guiding webs
    • B65H23/02Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/0204Sensing transverse register of web
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34Feeding or guiding devices not specially adapted to a particular type of apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3408Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material
    • B21C47/3416Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the lateral position of the material with lateral edge contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Induktive Kanten- oder Mittenabtastung für bewegte metallische Bahnen mittels eines oder mehrerer Initiatoren, dadurch gekennzeichnet, daß die Meßfläche (3) des (der) Initiators (Initiatoren) (2) und die metallische Bahn (1) senkrecht oder annähernd senkrecht zueinander angeordnet sind.Inductive edge or center scanning for moving metallic tracks by means of an or several initiators, characterized in that the measuring surface (3) of the initiator (s) (Initiators) (2) and the metallic web (1) perpendicular or approximately perpendicular to one another are arranged. Für die Kanten- oder Mittenabtastung bewegter metallischer Bahnen ist es bereits bekannt, induktiv wirkende Initiatoren zu verwenden. Die Initiatoren enthalten einen Oszillator, dessen elektromagnetisches Feld an der aktiven Seite frei austreten kann.It is already known inductively for the edge or center scanning of moving metallic webs to use effective initiators. The initiators contain an oscillator, its electromagnetic Field can emerge freely on the active side. Nähert man der aktiven Fläche ein Metallteil, so wird dem Feld Energie entzogen, was eine Amplitudenänderung des Oszillators zur Folge hat. Die Anordnung der Initiatoren erfolgt üblicherweise derart, daß die Meßfläche (aktive Fläche) in einem Abstand parallel zur metallischen Bahn verläuft. Tritt nun aus irgendwelchen Gründen eine seitliche Verschiebung der Bahn ein, dann wird von der Bahn entweder mehr oder weniger Meßfläche des Initiators abgedeckt, so daß in Abhängigkeit des seitlichen Abstandes der Bahn sich die Ausgaingsgröße des Initiators ändert. Die Ausgangsgröße, al:s Spannung oder Strom, wird zur Führung oder Korrektur der metallischen Bahn verwendet. Die Ausgaingsgröße des Initiators wird aber auch dadurch mit beeinflußt, daß der Abstand der Höhe zwischen Meßfläche des Initiators und der metallischen Bahn durch Flattern oder Durchgang der Bahn nicht konstant gehalten werden kann. Wie Versuche gezeigt haben, wird durch Höhenabstandsänderungen die Ausgangsgröße bis fast zum zweifachen Wert der seitlichen Verschiebung der Bahn beeinflußt, was sich natürlich nachteilig auf die Kanten- oder Mittenregelung der Bahn auswirkt.When approaching the active surface of a metal part, so the field energy is removed, resulting in a change in amplitude of the oscillator result. The initiators are usually arranged in such a way that the measuring surface (active surface) runs parallel to the metallic track at a distance. If, for any reason, a lateral displacement of the path occurs, then either more or less measuring surface of the initiator is covered by the path, so that the output size of the initiator changes as a function of the lateral distance of the path. The output variable, al: s voltage or current, is used to guide or correct the metallic path. The output size of the initiator is also influenced by the fact that the distance between the height between the measuring surface of the initiator and the metallic web cannot be kept constant due to fluttering or passage of the web. As tests have shown, changes in the height distance affect the output variable up to almost twice the value of the lateral displacement of the web, which of course has a disadvantageous effect on the edge or center control of the web. Der Erfindung liegt die Aufgabe zugrunde, eine induktive Kanten- oder Mittenregelung zu schaffen, bei der Höhenänderungen der metallischen Bahn die Ausgangsmeßgröße des Initiators nahezu nicht beeinflussen. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Meßfläche des (der) Initiators (Initiatoren) und die metallische Bahn senkrecht oder annähernd senkrecht zueinander angeordnet sind.The invention is based on the object of creating an inductive edge or center control the changes in height of the metallic track have almost no effect on the initial measured variable of the initiator. This object is achieved according to the invention in that the measuring surface of the initiator (s) and the metallic webs are arranged perpendicularly or approximately perpendicularly to one another. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung näher erläutert.An exemplary embodiment of the invention is explained in greater detail in the drawing. Mit 1 ist die metallische Bahn bezeichnet, an der seitlich und senkrecht zur Bahn ein Initiator 2 angeordnet ist. Seine wirksame Meßfläche ist mit 3 bezeichnet. Wird beispielsweise die metallische Bahn 1 seitlich nach rechts oder links ausgelenkt, so verkleinert bzw. vergrößert sich der Abstand der Bahn 1 zur Meßfläche 3 des Initiators 2, so daß sich die Ausgangsgröße des Initiators 2 entsprechend ändert und die Änderung der Ausgangsgröße zur Korrektur der Bahn 1 herangezogen wird.The metallic track is designated by 1, on which an initiator 2 is located on the side and perpendicular to the track is arranged. Its effective measuring surface is denoted by 3. For example, if the metallic track 1 deflected laterally to the right or left, the distance between the web 1 and the Measuring surface 3 of the initiator 2, so that the output size of the initiator 2 changes accordingly and the change in the output variable is used to correct web 1. Kommt noch unerwünschterweise ein Flattern der Bahn oder ein Durchgang der Bahn hinzu, so bleiben diese Erscheinungen fast ohne Einfluß auf die Ausgangsgröße des Initiators, weil kein oder nur ein kleiner, unbedeutender Störwert erzeugt wird. Durch die erfindungsgemäße senkrechte Anordnung des Initiators zur metallischen Bahn ist es auf einfache Art und Weise gelungen, Störgrößen infolge von Höhenschwankungen der Metallbahn fast gänzlich zu unterdrücken, so daß im wesentlichen nur die seitliche Auslenkung der Bahn die Ausgangsgröße des Initiators beeinflußt.If there is an undesired fluttering of the web or a passage of the web, so remain these phenomena have almost no effect on the initial size of the initiator, because no or only one small, insignificant disturbance value is generated. The inventive vertical arrangement of the Initiator for the metallic track has succeeded in a simple way, disturbance variables as a result of height fluctuations to suppress the metal track almost entirely, so that essentially only the lateral Deflection of the path influences the output size of the initiator.
DE19752534823 1975-08-05 1975-08-05 Inductive edge or center scanning for moving metallic tracks Withdrawn DE2534823B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19752534823 DE2534823B2 (en) 1975-08-05 1975-08-05 Inductive edge or center scanning for moving metallic tracks
BE169482A BE844797A (en) 1975-08-05 1976-08-02 DEVICE FOR MARGINAL OR CENTRAL EXPLORATION OF METAL BANDS BY INDUCTIVE METHOD
FR7623692A FR2320250A1 (en) 1975-08-05 1976-08-03 Inductive position detector for metal tapes - uses detector which is mounted perpendicular to plane of tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752534823 DE2534823B2 (en) 1975-08-05 1975-08-05 Inductive edge or center scanning for moving metallic tracks

Publications (2)

Publication Number Publication Date
DE2534823A1 DE2534823A1 (en) 1977-02-10
DE2534823B2 true DE2534823B2 (en) 1978-09-07

Family

ID=5953211

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752534823 Withdrawn DE2534823B2 (en) 1975-08-05 1975-08-05 Inductive edge or center scanning for moving metallic tracks

Country Status (3)

Country Link
BE (1) BE844797A (en)
DE (1) DE2534823B2 (en)
FR (1) FR2320250A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336741A1 (en) * 1983-10-08 1985-05-02 Erhardt & Leimer GmbH, 8900 Augsburg Edge sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3336741A1 (en) * 1983-10-08 1985-05-02 Erhardt & Leimer GmbH, 8900 Augsburg Edge sensor

Also Published As

Publication number Publication date
DE2534823A1 (en) 1977-02-10
FR2320250B3 (en) 1979-05-04
FR2320250A1 (en) 1977-03-04
BE844797A (en) 1976-12-01

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Legal Events

Date Code Title Description
8230 Patent withdrawn