DE1149915B - Device for non-contact width or length measurement - Google Patents
Device for non-contact width or length measurementInfo
- Publication number
- DE1149915B DE1149915B DEL38163A DEL0038163A DE1149915B DE 1149915 B DE1149915 B DE 1149915B DE L38163 A DEL38163 A DE L38163A DE L0038163 A DEL0038163 A DE L0038163A DE 1149915 B DE1149915 B DE 1149915B
- Authority
- DE
- Germany
- Prior art keywords
- line
- scanning
- width
- length
- scanned
- 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.)
- Pending
Links
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
- G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B11/046—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring width
-
- 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
- G01B11/04—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B11/043—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length
Description
Vorrichtung zur berührungslosen Breiten-bzw. Längenmessung Die Erfindung bezieht sich auf ein Verfahren zur berührungslosen Breiten- bzw. Längenmessung, insbesondere an Objekten mit unregelmäßigen, schwer definierbaren Begrenzungen, beispielsweise Brammen von Walzgütern, bei welchen die Umgrenzungen eines Objektes von einer Fernsehkamera abgetastet und die hierbei in zeilenmäßiger Abtastung durch einen Elektronenstrahl in einer Meßrichtung gewonnenen Signale einer digitalen Zähleinrichtung zugeleitet werden.Device for contactless width or. Length measurement The invention refers to a method for non-contact width or length measurement, especially on objects with irregular, hard-to-define boundaries, for example slabs of rolled goods, in which the boundaries of an object scanned by a television camera and in this case in line-by-line scanning an electron beam obtained in a measuring direction signals of a digital counter be forwarded.
Es ist bereits ein Verfahren zum Fernmessen von Längen, insbesondere an Walzgutkörpern, unter Anwendung von Fernsehgeräten bekannt, wobei senkrecht über dem auszumessenden Objekt eine Fernsehkamera angebracht ist, auf deren lichtempfindlichen Schicht ein Bild des Objektes erzeugt wird. It is already a method of telemetering lengths, in particular on rolling stock bodies, known using television sets, being perpendicular across A television camera is attached to the object to be measured, and its light-sensitive Layer an image of the object is generated.
Mit einem elektronischen Zählwerk wird die Anzahl der in Meßrichtung durch das Objektbild beleuchteten Zeilen der lichtempfindlichen Schicht der Fernsehkamera ausgezählt, nachdem vorher die Kamera so gedreht worden ist, daß die Meßrichtung senkrecht zur Zeilenrichtung liegt. Das Ergebnis dieser Zählung wird als Zahlenwert unmittelbar angezeigt.With an electronic counter the number of in the measuring direction lines of the light-sensitive layer of the television camera illuminated by the object image counted after the camera has previously been rotated so that the measuring direction perpendicular to the direction of the row. The result of this count is called a numerical value displayed immediately.
Das Ergebnis der Zählung entspricht bei gegebenem optischem Abbildungsmaßstab direkt der Breite bzw.The result of the count corresponds to the given optical reproduction scale directly to the width or
Länge des Walzgutkörpers.Length of the rolling stock.
Weiterhin ist ein Verfahren zur Breitenmessung von kontinuierlich durchlaufendem, bandförmigem Gut bekannt, dessen Begrenzungen auf zwei elektronischen Kameras abgebildet und so vom Elektronenstrahl abgetastet werden, daß die Abtastspannungswerte des das abgebildete Objekt überstreichenden Elektronenstrahls gemessen werden, wobei an den abgebildeten Körperbegrenzungen Schwarz-Weiß-Sprünge der Abtastspannungswerte erzeugt werden, deren Impulsbreite als Meßgrundlage dient. Furthermore, there is a method for measuring the width of continuously continuous, band-shaped material known, its limitations on two electronic Cameras are imaged and scanned by the electron beam in such a way that the scanning voltage values of the electron beam sweeping over the imaged object can be measured, wherein Black-and-white jumps in the scanning voltage values at the body boundaries shown are generated whose pulse width serves as a measurement basis.
Aufgabe des Verfahrens gemäß der Erfindung ist. ein Meßverfahren zur Längen- bzw. Breitenmessung, insbesondere an nicht in Bewegung befindlichen Gütern anzugeben, die eine unregelmäßige, voneinander abweichende Umgrenzung haben. Das Meßverfahren soll besonders für die Breiten- oder Längenmessung von Brammen in Walzwerken geeignet sein, die im allgemeinen nicht rechteckig sind, sondern eine nierenförmige Umgrenzung haben. Bei derartigen Meßgütern interessiert beispielsweise die kürzeste oder die längste Längen- oder Breitenerstreckung. Die Meßstelle muß daher unter Beobachtung der Meßgutumgrenzung beliebig wählbar sein. The object of the method according to the invention is. a measurement method for length or width measurement, especially on those that are not in motion Specify goods that have an irregular, differing boundary. The measuring method is intended especially for the width or length measurement of slabs be suitable in rolling mills, which are generally not rectangular, but a have kidney-shaped border. In the case of such objects to be measured, for example the shortest or the longest length or width extension. The measuring point must therefore it can be selected as required while observing the boundary of the material to be measured.
Das Verfahren gemäß der Erfindung ist dadurch gekennzeichnet, daß beim Beobachten der abzutastenden Objektumgrenzungen mittels eines Fern- sehempfängers, beispielsweise durch Helltastung einer Abtastzeile, diejenige Zeile ausgewählt wird, welche einer über die Gesamtbreite oder Gesamtlänge beliebig auswählbaren Meßstelle des Objektes zugeordnet ist, und die ausgewählte Abtastzeile eine für die Dauer des Abtastens geöffnet gehaltene Torstufe steuert und daß die Abtastzeit durch das Zählgerät ausgezählt und direkt als digitaler Meßwert angezeigt wird. The method according to the invention is characterized in that when observing the object boundaries to be scanned by means of a remote visual receiver, For example, by highlighting a scanning line, that line is selected which is a measuring point that can be freely selected over the total width or total length of the object is assigned, and the selected scan line is one for the duration of the scanning, which is held open, controls the gate stage and that the scanning time is controlled by the Counting device is counted and displayed directly as a digital measured value.
DerVorteildes erfindungsgemäßenVerfahrens gegenüber den bekannten Verfahren ist insbesondere darin zu sehen, daß die Länge des Walzkörpers nicht durch Auszählen derjenigen Zeilen des Empfängers mittels eines Zählwerkes ermittelt wird, über die sich das Bild des Walzkörpers in seiner Meßrichtung erstreckt, sondern nur die Abtastzeit eines Elektronenstrahls gemessen wird, die er längs einer gekennzeichneten Abtastzeile beim Überstreichen des Meßgutes benötigt, so daß bei einem derartigen Zählvorgang als Grundlage für eine Längenmessung eine weit geringere Zeitspanne in Anspruch genommen wird als bei den bekannten Meßverfahren. The advantage of the method according to the invention over the known ones Method can be seen in particular in that the length of the roller body does not go through Counting those lines of the recipient is determined by means of a counter, over which the image of the roller body extends in its measuring direction, but rather only the scanning time of an electron beam is measured along which it is marked Scanning line required when sweeping over the material to be measured, so that with such a Counting process as the basis for a length measurement takes a much shorter period of time is used as with the known measuring methods.
Die erfindungsgemäße Meßanordnung eignet sich sowohl für selbststrahlende Objekte, wie glühende Bänder oder Brammen in Walzwerken, deren Temperatur bei etwa 10000 C liegt, als auch für nicht selbststrahlende Bänder und Folien, die dann durch Fremdlicht angestrahlt werden müssen. The measuring arrangement according to the invention is suitable for both self-radiating Objects such as glowing strips or slabs in rolling mills whose temperature is around 10000 C, as well as for non-self-radiating tapes and foils, which then through External light must be irradiated.
Soll z. B. die Länge von Brammen gemessen und beobachtet werden, so ist es erforderlich, daß das Objekt über die Gesamtbreite beliebig wählbar ist. Should z. B. the length of slabs can be measured and observed, so it is necessary that the object can be freely selected over the entire width.
Diese Schnellabtastung über die Gesamtbreite zeilenweise mit Hilfe des erfindungsgemäßen Verfahrens läßt also in kürzester Zeit eine Längenmessung jeder Breitenausdehnung des Objektes zu.This rapid scanning over the entire width line by line with the help the method according to the invention therefore allows a length measurement in a very short time every width of the object.
Die Fig. 1 stellt ein Brammenbild in der Fernsehkamera dar, das in Längsrichtung angetastet werden soll. Der Pfeil deutet die Zeilenrichtung an. Gemessen wird dann die Meßzeit t der in der Figur durch einen ausgezogenen Strich beispielsweise dargestellten Zeile. Fig. 1 shows a slab image in the television camera, which in Should be touched lengthways. The arrow indicates the direction of the line. Measured the measuring time t is then indicated by a solid line in the figure, for example line shown.
Fig. 2 stellt das Meßobjekt 1 dar, das von der Fernsehkamera 2 aufgenommen und abgetastet wird, wobei die Abtastung auf dem Fernsehempfänger3 übertragen wird. Die Meßstelle wird nun mittels des Helltasters4 durch Helltastung der entsprechenden Zeile gekennzeichnet. Das Tor 5 wird von der Meßstelle so gesteuert, daß die Torstufe nur während der Meßlänge geöffnet ist. Mittels eines an sich bekannten Generators wird nun über das Zähigerät 7 die Zeit t ausgezählt und direkt digital als Meßwert angezeigt. FIG. 2 shows the measurement object 1 recorded by the television camera 2 and is scanned, the scan being transmitted on the television receiver3. The measuring point is now highlighted by means of the light button4 by highlighting the corresponding Line marked. The gate 5 is controlled by the measuring point so that the gate step is only open during the measuring length. By means of a generator known per se the time t is now counted via the counter 7 and directly digitally as a measured value displayed.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL38163A DE1149915B (en) | 1961-02-10 | 1961-02-10 | Device for non-contact width or length measurement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL38163A DE1149915B (en) | 1961-02-10 | 1961-02-10 | Device for non-contact width or length measurement |
Publications (1)
Publication Number | Publication Date |
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DE1149915B true DE1149915B (en) | 1963-06-06 |
Family
ID=7268184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEL38163A Pending DE1149915B (en) | 1961-02-10 | 1961-02-10 | Device for non-contact width or length measurement |
Country Status (1)
Country | Link |
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DE (1) | DE1149915B (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1227246B (en) * | 1964-04-17 | 1966-10-20 | Licentia Gmbh | Digital width measurement |
DE1271997B (en) * | 1967-05-03 | 1968-07-04 | Licentia Gmbh | Digital width measurement |
DE2040084A1 (en) * | 1970-08-12 | 1972-03-02 | Mitsubishi Electric Corp | Comparison system |
US3798366A (en) * | 1972-03-06 | 1974-03-19 | R Winkler | Infrared imaging system |
DE2555975A1 (en) * | 1975-10-30 | 1977-05-05 | Kletzmaier | Optoelectrical dimension measurement of moving objects - uses silhouette sensing technique for objects on conveyor such as dia. of wooden logs |
FR2399001A1 (en) * | 1977-07-27 | 1979-02-23 | Measurex Corp | APPARATUS FOR MEASURING THE LENGTH OF THE TREAD OF A TIRE |
FR2437610A1 (en) * | 1978-09-29 | 1980-04-25 | Usinor | Length and speed meter esp. for steel industry - uses video camera and opto-electronic gating in pulse counting technique |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2663857A (en) * | 1951-10-25 | 1953-12-22 | Western Electric Co | Curve follower |
DE1005741B (en) * | 1955-12-22 | 1957-04-04 | Exatest Ges Fuer Messtechnik M | Method and device for measuring the distance between two points which lie on the boundaries of a linear, planar or spatial body, in particular for measuring the width of continuously running, strip-shaped material |
DE1014465B (en) * | 1955-06-11 | 1957-08-22 | Huettenwerk Oberhausen Ag | Method for telemeasuring lengths, in particular on rolling stock using television sets |
-
1961
- 1961-02-10 DE DEL38163A patent/DE1149915B/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2663857A (en) * | 1951-10-25 | 1953-12-22 | Western Electric Co | Curve follower |
DE1014465B (en) * | 1955-06-11 | 1957-08-22 | Huettenwerk Oberhausen Ag | Method for telemeasuring lengths, in particular on rolling stock using television sets |
DE1005741B (en) * | 1955-12-22 | 1957-04-04 | Exatest Ges Fuer Messtechnik M | Method and device for measuring the distance between two points which lie on the boundaries of a linear, planar or spatial body, in particular for measuring the width of continuously running, strip-shaped material |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1227246B (en) * | 1964-04-17 | 1966-10-20 | Licentia Gmbh | Digital width measurement |
DE1271997B (en) * | 1967-05-03 | 1968-07-04 | Licentia Gmbh | Digital width measurement |
DE2040084A1 (en) * | 1970-08-12 | 1972-03-02 | Mitsubishi Electric Corp | Comparison system |
US3798366A (en) * | 1972-03-06 | 1974-03-19 | R Winkler | Infrared imaging system |
DE2555975A1 (en) * | 1975-10-30 | 1977-05-05 | Kletzmaier | Optoelectrical dimension measurement of moving objects - uses silhouette sensing technique for objects on conveyor such as dia. of wooden logs |
DE2555975B2 (en) * | 1975-10-30 | 1979-07-19 | Karl Kletzmaier | Device for determining or monitoring the dimensions of a possibly moving object |
DE2555975C3 (en) * | 1975-10-30 | 1985-10-03 | Kletzmaier, Karl | Device for determining or monitoring the dimensions, in particular the volume of a moving object |
FR2399001A1 (en) * | 1977-07-27 | 1979-02-23 | Measurex Corp | APPARATUS FOR MEASURING THE LENGTH OF THE TREAD OF A TIRE |
FR2437610A1 (en) * | 1978-09-29 | 1980-04-25 | Usinor | Length and speed meter esp. for steel industry - uses video camera and opto-electronic gating in pulse counting technique |
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