DE19839287C5 - Method and device for determining the position of the edge of a metal strip - Google Patents
Method and device for determining the position of the edge of a metal strip Download PDFInfo
- Publication number
- DE19839287C5 DE19839287C5 DE1998139287 DE19839287A DE19839287C5 DE 19839287 C5 DE19839287 C5 DE 19839287C5 DE 1998139287 DE1998139287 DE 1998139287 DE 19839287 A DE19839287 A DE 19839287A DE 19839287 C5 DE19839287 C5 DE 19839287C5
- Authority
- DE
- Germany
- Prior art keywords
- distance sensor
- metal strip
- distance
- edge
- output voltage
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 title claims abstract description 77
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract 5
- 238000011088 calibration curve Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
-
- 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
- G01D5/26—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/342—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 characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells the sensed object being the obturating part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2261/00—Product parameters
- B21B2261/02—Transverse dimensions
- B21B2261/06—Width
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Verfahren
zur Bestimmung der Position (P) einer Kante eines gewalzten Metallbandes
(1) mittels zumindest eines Abstandssensors (2) zur Messung des
Abstands (h) des Abstandssensors (2) von dem Metallband (1), wobei
der Meßbereich
(9) des Abstandssensors (2) unvollständig vom Metallband überdeckt
ist, und wobei aus dem mittels des Abstandssensors (2) gemessenen
Abstands (h) und einem Wert des tatsächlichen Abstands (h) des Abstandssensors
von dem Metallband (1) der Grad der Überdeckung des Meßbereichs
(9) des Abstandssensors (2) durch das Metallband (1) errechnet und
daraus die Position (P) der Kante des Metallbandes (1) bestimmt
wird, und wobei zur Ermöglichung
der Erfassung einer Bandkante über
einen weiten Bereich mehrere dicht nebeneinander gesetzte Abstandssensoren
verwendet werden, wobei als nur teilweise überdeckter Abstandssensor derjenige
Abstandssensor bestimmt wird, für
den der Ausdruckminimal ist, wobei
U
= Ausgangsspannung des jeweiligen Abstandssensors,
Umax = Ausgangsspannung eines unbedeckten
Abstandssensors, und
Umin = Ausgangsspannung
eines vollständig
bedeckten Abstandssensors...Method for determining the position (P) of an edge of a rolled metal strip (1) by means of at least one distance sensor (2) for measuring the distance (h) of the distance sensor (2) from the metal strip (1), wherein the measuring area (9) of the distance sensor (2) is incompletely covered by the metal strip, and wherein from the distance (h) measured by the distance sensor (2) and a value of the actual distance (h) of the distance sensor from the metal strip (1) the degree of coverage of the measuring area (9) the distance sensor (2) through the metal strip (1) is calculated and from the position (P) of the edge of the metal strip (1) is determined, and wherein a plurality of closely spaced distance sensors are used to enable the detection of a band edge over a wide range, wherein as only partially covered distance sensor that distance sensor is determined for the expression is minimal, where
U = output voltage of the respective distance sensor,
U max = output voltage of an uncovered distance sensor, and
U min = output voltage of a completely covered distance sensor ...
Description
Die Erfindung betrifft ein Verfahren bzw. eine Einrichtung zur Bestimmung der Position der Kante eines Metallbandes.The The invention relates to a method and a device for determining the position of the edge of a metal band.
Derartige
Verfahren bzw. Einrichtungen sind z. B. aus der
Aufgabe der Erfindung ist es, ein Verfahren bzw. eine Einrichtung zur präziseren und wünschenswerterweise kostengünstigen Bestimmung der Position der Kante eines Metallbandes anzugeben.task The invention is a method and a device for more precise and desirably inexpensive Determine the position of the edge of a metal strip.
Die Aufgabe wird erfindungsgemäß durch ein Verfahren gemäß Anspruch 1 oder Anspruch 2 bzw. eine Einrichtung gemäß Anspruch 7 oder Anspruch 8 gelöst. Dabei wird zur Bestimmung der Position einer Kante eines gewalzten Metallbandes mittels zumindest eines Abstandssensors zur Messung des Abstands des Abstandssensors von dem Metallband, wobei der Meßbereich des Abstandssensors unvollständig vom Metallband überdeckt ist, aus dem mittels des Abstandssensors gemessenen Abstands und einem Wert des tatsächlichen Abstands des Abstandssensors von dem Metallband der Grad der Überdeckung des Meßbereichs des Abstandssensors durch das Metallband errechnet und daraus die Position der Kante des Metallbandes bestimmt. Alternativ dazu wird zur Bestimmung der Position einer Kante eines gewalzten Metallbandes mittels zumindest zweier Abstandssensoren zur Messung der Abstände der Abstandssensoren von dem Metallband, wobei der Meßbereich eines ersten Abstandssensors unvollständig und der Meßbereich eines zweiten Abstandssensors vollständig vom Metallband überdeckt ist, aus den mittels der Abstandssensoren gemessenen Abständen der Grad der Überdeckung des Meßbereichs des ersten Abstandssensors durch das Metallband errechnet und daraus die Position der Kante des Metallbandes bestimmt. Dabei wird jeweils der nur teilweise überdeckte Abstandssensor als derjenige ermittelt, für den der Ausdruckminimal ist.The object is achieved by a method according to claim 1 or claim 2 or a device according to claim 7 or claim 8. In this case, to determine the position of an edge of a rolled metal strip by means of at least one distance sensor for measuring the distance of the distance sensor from the metal strip, wherein the measuring range of the distance sensor is incompletely covered by the metal strip, from the distance measured by the distance sensor and a value of the actual distance of the Distance sensor of the metal strip of the degree of coverage of the measuring range of the distance sensor calculated by the metal strip and determines the position of the edge of the metal strip. Alternatively, to determine the position of an edge of a rolled metal strip by means of at least two distance sensors for measuring the distances of the distance sensors from the metal strip, wherein the measuring range of a first distance sensor incomplete and the measuring range of a second distance sensor is completely covered by the metal strip, from the means of the distance sensors measured distances of the degree of coverage of the measuring range of the first distance sensor calculated by the metal strip and determines the position of the edge of the metal strip. In each case, the only partially covered distance sensor is determined as the one for which the expression is minimal.
Auf diese Weise ist es möglich, die Position der Kante eines Metallbandes besonders präzise und auf kostengünstige Weise zu bestimmen.On this way it is possible the position of the edge of a metal strip particularly precise and on inexpensive Way to determine.
In vorteilhafter Ausgestaltung der Erfindung wird die Position der Kante des Metallbandes aus den gemessenen Abständen mehrerer Abstandssensoren, deren Meßbereich vollständig vom Metallband überdeckt ist, bestimmt.In Advantageous embodiment of the invention, the position of the Edge of the metal strip from the measured distances of several distance sensors, their measuring range Completely covered by the metal band is, certainly.
In weiterhin vorteilhafter Ausgestaltung der Erfindung wird die Kante des Metallbandes aus zeitlichen Mittelwerten der mittels der Abstandssensoren gemessenen Abstände bestimmt.In Furthermore, an advantageous embodiment of the invention, the edge of the metal band of time average values of the measured by means of the distance sensors distances certainly.
In weiterhin vorteilhafter Ausgestaltung der Erfindung wird die Kante des Metallbandes mittels abgespeicherter Kalibrierungskurven bestimmt.In Furthermore, an advantageous embodiment of the invention, the edge of the metal band determined by means of stored calibration curves.
In vorteilhafter Ausgestaltung der Erfindung wird die Breite des Metallbandes durch Bestimmung der Positionen beider Kanten des Metallbandes bestimmt, wobei beide Positionen voneinander subtrahiert werden.In Advantageous embodiment of the invention, the width of the metal strip determined by determining the positions of both edges of the metal strip, where both positions are subtracted from each other.
Weitere Vorteile und Einzelheiten ergehen sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen und aus den Unteransprüchen. Im einzelnen zeigen:Further Advantages and details will become apparent from the following description of exemplary embodiments and from the dependent claims. in the single show:
Das
Ausmaß einer
solchen Meßwertverfälschung
ist beispielhaft in
Der
Abstand h zwischen den Abstandssensoren
Die
Kennlinie in
Anschließend wird
durch die 10 Kalibrierwerte eine passende Funktion
Dabei ist U die Ausgangsspannung des Abstandssensors, P ist die horizontale Bandkantenposition und a0, a1, a2, a3 sind Fitparameter, die durch den Fitalgorithmus bestimmt werden.Where U is the output voltage of the distance sensor, P is the horizontal band edge position and a 0 , a 1 , a 2 , a 3 are fit parameters determined by the fitting algorithm.
Bezugszeichen
Zum Bestimmen der Bandkante wird die Abstandssensorspannung U gemessen und daraus die Bandkantenposition berechnet. Dazu wird die Umkehrfunktion obiger Formel gebildet: For determining the band edge, the distance sensor voltage U is measured and from this the band edge position is calculated. For this purpose, the inverse function of the above formula is formed:
Soll
die Bandkante über
einen weiten Bereich bestimmt werden, so werden mehrere Abstandssensoren
dicht nebeneinander gesetzt wie in
Umax ist dabei die Ausgangsspannung eines unbedeckten Abstandssensors und Umin die Ausgangsspannung eines vollständig bedeckten Abstandssensors. Oben bezeichnete Berechnungen werden vorteilhafterweise mittels einer nicht dargestellten Recheneinrichtung durchgeführt.U max is the output voltage of an uncovered distance sensor and U min is the output voltage of a completely covered distance sensor. The above-mentioned calculations are advantageously carried out by means of a computing device, not shown.
Auf
diese Weise ist es möglich,
einen sehr genauen Wert für
die Position der Bandkante des Metallbandes
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998139287 DE19839287C5 (en) | 1998-08-28 | 1998-08-28 | Method and device for determining the position of the edge of a metal strip |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998139287 DE19839287C5 (en) | 1998-08-28 | 1998-08-28 | Method and device for determining the position of the edge of a metal strip |
Publications (3)
Publication Number | Publication Date |
---|---|
DE19839287A1 DE19839287A1 (en) | 1999-10-07 |
DE19839287C2 DE19839287C2 (en) | 2000-02-17 |
DE19839287C5 true DE19839287C5 (en) | 2008-02-14 |
Family
ID=7879084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998139287 Expired - Fee Related DE19839287C5 (en) | 1998-08-28 | 1998-08-28 | Method and device for determining the position of the edge of a metal strip |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19839287C5 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202016008273U1 (en) | 2016-02-08 | 2017-06-09 | Asinco GmbH | Device for measuring the width of a metal strip produced by strip rolling |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3442154A1 (en) * | 1984-11-17 | 1986-05-28 | Elektro-Mechanik Gmbh, 5963 Wenden | METHOD FOR DETECTING THE POSITION OF THE STRIP EDGE OF A MATERIAL RAIL |
DE4126921A1 (en) * | 1991-08-14 | 1993-02-18 | Elmeg | METHOD AND DEVICE FOR INDUCTIVE MEASUREMENT OF THE POSITION OF A METAL STRIP |
EP0349528B1 (en) * | 1986-10-10 | 1993-12-08 | LINDER, Sten | A method and measuring system for contactless measuring the values of magnitudes relating to electrically conductive materials |
EP0514698B1 (en) * | 1991-05-02 | 1996-10-09 | Asea Brown Boveri Ab | Method and device for edge position determination of metallic materials |
-
1998
- 1998-08-28 DE DE1998139287 patent/DE19839287C5/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3442154A1 (en) * | 1984-11-17 | 1986-05-28 | Elektro-Mechanik Gmbh, 5963 Wenden | METHOD FOR DETECTING THE POSITION OF THE STRIP EDGE OF A MATERIAL RAIL |
EP0349528B1 (en) * | 1986-10-10 | 1993-12-08 | LINDER, Sten | A method and measuring system for contactless measuring the values of magnitudes relating to electrically conductive materials |
EP0514698B1 (en) * | 1991-05-02 | 1996-10-09 | Asea Brown Boveri Ab | Method and device for edge position determination of metallic materials |
DE4126921A1 (en) * | 1991-08-14 | 1993-02-18 | Elmeg | METHOD AND DEVICE FOR INDUCTIVE MEASUREMENT OF THE POSITION OF A METAL STRIP |
Non-Patent Citations (3)
Title |
---|
Druckschrift EMG.V3.8.6/1996 "EMG-Servotechnik: Bandlaufregelungen für die Metallindustrie", Elektro-Mechanik GmbH, Wenden (November 1996) * |
Produktkatalog "ABB Millmate Strip Scanner zur Messung von Bandbreite und Kantenlage in Walz- werken und Prozesslinien", ABB Automation AB, S-72167 Västeras, Schweden, 3BSE002072R0103, SIR-Gruppen/Västra Aros, 1993-04 2000 |
Produktkatalog "ABB Millmate Strip Scanner zur Messung von Bandbreite und Kantenlage in Walzwerken und Prozesslinien", ABB Automation AB, S-72167 Västeras, Schweden, 3BSE002072R0103, SIR-Gruppen/Västra Aros, 1993-04 2000 * |
Also Published As
Publication number | Publication date |
---|---|
DE19839287A1 (en) | 1999-10-07 |
DE19839287C2 (en) | 2000-02-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19628220B4 (en) | Method and device for determining the thickness of one or more superimposed layers on a substrate | |
DE2025807C3 (en) | Device for the non-destructive examination of magnetic workpieces with a circular cross-section for cracks | |
DE4334380A1 (en) | Method for calibrating a sensor | |
CH675481A5 (en) | ||
DE2244340C2 (en) | Method and device for the preliminary examination of master copies | |
EP1779057B1 (en) | Method for determining in a contactless manner the thickness of a layer by resistance and inductivity measurement of a sensor coil | |
DE3813739A1 (en) | METHOD FOR THE DESTRUCTION-FREE MEASUREMENT OF MAGNETIC PROPERTIES OF A TEST BODY AND DEVICE FOR DESTRUCTION-FREE MEASUREMENT OF MAGNETIC PROPERTIES OF A TEST BODY | |
DE69025445T2 (en) | Method and device for determining a melt level | |
DE3408318A1 (en) | METHOD AND DEVICE FOR CONTINUOUS DISTANCE MEASUREMENT BY MEANS OF A FLUID CURRENT | |
DE19839286B4 (en) | Method and device for measuring the tension distribution in a metal strip | |
EP0296417A2 (en) | Method for testing an object | |
DE19637716C1 (en) | Magnetic inductive flow measurement method for medium passing through measuring tube | |
EP0475085B1 (en) | Measurement method to determine the rupture elongation of a sample under stress in computer controlled stress testing | |
DE69214348T2 (en) | Method and device for determining the position of the edge of a metallic material | |
DE4328363A1 (en) | Method for determining an evaluation time interval and method for quality evaluation of a spot weld connection on the basis of a temperature profile in the evaluation time interval | |
DE19839287C5 (en) | Method and device for determining the position of the edge of a metal strip | |
DE3347456A1 (en) | Method for immediate processing of the angular fluctuation noise, as well as a tracking monopulse radar receiver in which this method is used | |
DE102013209805A1 (en) | Inductive sensor | |
EP0995075A1 (en) | Method for determining the thickness of a layer made of electrically conductive material | |
EP4030199B1 (en) | Inductive proximity sensor unit and method for determining an object property of a metallic sensing body | |
DE202016008273U1 (en) | Device for measuring the width of a metal strip produced by strip rolling | |
DE3446867C2 (en) | Device for the non-destructive testing of longitudinally displaceable ferromagnetic bodies and method for setting the device in an initial state for the test that is matched to the respective test objects | |
DE1949072A1 (en) | Method and device for measuring the longitudinal extension of metal bands | |
DE69104164T2 (en) | Method and device for measuring the transverse profile of the thickness of a metallic strip, preferably made of steel. | |
DE102008064544B4 (en) | Position / distance measuring system and method for determining the position of an encoder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings | ||
8392 | Publication of changed patent specification | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140301 |