DE4206608A1 - Internal measuring device for determining parameters of pipes for sanitation planning - has distance sensor using triangulation, with optical axis of light source coincident with rotational axis of deflection mirror - Google Patents
Internal measuring device for determining parameters of pipes for sanitation planning - has distance sensor using triangulation, with optical axis of light source coincident with rotational axis of deflection mirrorInfo
- Publication number
- DE4206608A1 DE4206608A1 DE19924206608 DE4206608A DE4206608A1 DE 4206608 A1 DE4206608 A1 DE 4206608A1 DE 19924206608 DE19924206608 DE 19924206608 DE 4206608 A DE4206608 A DE 4206608A DE 4206608 A1 DE4206608 A1 DE 4206608A1
- Authority
- DE
- Germany
- Prior art keywords
- sanitation
- axis
- optical axis
- pipes
- planning
- 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- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C7/00—Tracing profiles
- G01C7/06—Tracing profiles of cavities, e.g. tunnels
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/12—Installations enabling inspection personnel to drive along sewer canals
-
- 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
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
- G01B11/12—Measuring arrangements characterised by the use of optical techniques for measuring diameters internal diameters
-
- 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
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Multimedia (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Vorrichtung zur Ermittlung charakteristischer Parameter von Rohren, wie z. B. Innendurchmesser Deformation, Kaliber und Topographie der Rohrinnenfläche.The present invention relates to a device for Determination of characteristic parameters of pipes, such as B. Inner diameter deformation, caliber and topography of the Inner pipe surface.
Die vorhandenen, meist überalterten Kanalisationsnetze, insbesondere die für Abwasser sind nicht mehr in der Lage die an sie gestellten Anforderungen zu erfüllen. Dies resultiert vor allem aus der jahrzehntelangen permanenten Vernachlässigung der Instandhaltung dieser Netze und ihrer ständigen Überlastung. In den nächsten Jahren müssen diese Netze entsprechend den ökologischen und ökonomischen Anforderungen durch Verlegung neuer bzw. Sanierung vorhandener Rohrleitungen modernisiert werden. Um die dafür erforderlichen finanziellen Mittel effizient einsetzen zu können, ist es in Vorbereitung von Sanierungsmaßnahmen notwendig den jeweiligen Rohrleitungszustand objektiv zu erfassen.The existing, mostly outdated sewerage networks, especially those for wastewater are no longer able to meet the requirements placed on them. This results primarily from the decades of permanent Neglecting the maintenance of these networks and their constant overload. In the next few years, they will have to Networks according to the ecological and economic Requirements by laying new ones or refurbishing existing ones Pipelines to be modernized. To do the necessary It is in. to be able to use financial means efficiently Preparation of remedial measures necessary the respective Obtain pipeline status objectively.
Der gegenwärtige technische Stand gestattet nur partielle TV-Untersuchungen von Rohrleitungen. Zu diesem Zweck wird ein spezieller Kamerawagen mit Weitwinkelobjektiv bzw. mit in zwei Achsen schwenkbarem Kamerakopf durch die betreffenden Kanalisationsstellen gefahren. Die visuelle Auswertung des Bildmaterials erfolgt direkt im Basisfahrzeug. Diese Auswertung hängt da keine objektive und exakte Erfassung von Rohrparametern, sondern nur eine Betrachtung mittels TV-Kamera erfolgt, sehr stark vom subjektiven Eindruck der jeweiligen Person ab und führt somit zu nicht eindeutig reproduzierbaren Ergebnissen.The current technical status allows only partial TV investigations of pipelines. For this purpose, a special camera dolly with wide-angle lens or with two Axes swiveling camera head through the concerned Sewerage points driven. The visual evaluation of the Images are taken directly in the base vehicle. These Evaluation does not depend on an objective and exact recording Pipe parameters, but only a view using a TV camera takes place, very strongly from the subjective impression of the respective Person and thus leads to not clearly reproducible Results.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde eine Vorrichtung zu schaffen, die wichtige Rohrparameter meßtechnisch exakt erfassen, eindeutig auswerten und somit die Grundlagen für eine objektive Sanierungsplanung liefern kann. The present invention is based on the object Device to create the important pipe parameters measure precisely, clearly evaluate and thus the Can provide the basis for objective renovation planning.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß ein auf einen Fahrwagen montierter Meßkopf, bestehend aus einem nach dem Triangulationsverfahren arbeitenden Abstandssensor und einem rotierenden Umlenkspiegel in den Kanal eingebracht wird. Der Umlenkspiegel rotiert um die parallel zur Rohrachse verlaufenden optischen Achse des strahlerzeugenden Systems des Abstandssensors. Dadurch wird der Abstand zwischen Rotationsachse und Rohrwand und das Reflexionsvermögen der Rohrwand punktweise bestimmt.According to the invention the object is achieved in that a a trolley-mounted measuring head, consisting of an after the triangulation method working distance sensor and a rotating deflecting mirror introduced into the channel becomes. The deflecting mirror rotates parallel to the pipe axis extending optical axis of the beam generating system of the Distance sensor. This will make the distance between Axis of rotation and tube wall and the reflectivity of the Pipe wall determined point by point.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispieles näher beschrieben. Die dazugehörige Zeichnung zeigtThe invention is based on a Embodiment described in more detail. The Associated Drawing shows
Fig. 1 den Aufbau des Meßkopfes. Fig. 1 shows the structure of the measuring head.
In Fig. 1 ist die gesamte Vorrichtung auf einen Fahrwagen montiert und in das zu untersuchende Rohr 1 eingebracht. Durch die Strahlungsquelle 2 wird über das optische System 3 und den Umlenkspiegel 4 ein kleiner Leuchtfleck 5 auf der Rohrinnenwand erzeugt. Dieser Leuchtfleck 5 wird über den Umlenkspiegel 4 und das optische System 6, dessen optische Achse 7 in einen genau definierten Winkel α zur optischen Achse 8 des optischen Systems 3 steht, auf einen zeilenförmigen Detektor 9 abgebildet. Aus der Lage des Leuchtfleckbildes auf dem Detektor läßt sich der jeweilige Abstand zwischen der optischen Achse 8 und dem Leuchtfleck 5 auf der Rohrinnenwand bestimmen. Wird nun die optische Achse 8 parallel zur Rohrachse des zu untersuchenden Rohres ausgerichtet und der Umlenkspiegel 4 permanent um die optische Achse 8 gedreht, so erhält man den Abstand zwischen der optischen Achse 8 und dem Leuchtfleck 5 auf der Rohrinnenwand als Funktion vom Drehwinkel β des Umlenkspiegels. Aus diesen Meßwerten lassen sich durch geeignete mathematische Modelle der Durchmesser, das Kaliber und die Deformation des untersuchten Rohres an einer Stelle xo bestimmen. Darüber hinaus können durch eine mathematische Verknüpfung der mit dem Detektor nachgewiesenen Strahlungsintensität mit dem jeweiligen Abstand zwischen Detektor und Leuchtfleck Aussagen zum Reflexionsvermögen des Wandmaterials für die Wellenlänge der jeweiligen Strahlungsquelle gemacht werden.In Fig. 1, the entire device is mounted on a trolley and inserted into the pipe 1 to be examined. A small light spot 5 is generated on the inner tube wall by the radiation source 2 via the optical system 3 and the deflecting mirror 4 . This light spot 5 is imaged on a line-shaped detector 9 via the deflecting mirror 4 and the optical system 6 , the optical axis 7 of which is at a precisely defined angle α to the optical axis 8 of the optical system 3 . The respective distance between the optical axis 8 and the light spot 5 on the inner tube wall can be determined from the position of the light spot image on the detector. If the optical axis 8 is now aligned parallel to the tube axis of the tube to be examined and the deflecting mirror 4 is permanently rotated about the optical axis 8 , the distance between the optical axis 8 and the light spot 5 on the inner tube wall is obtained as a function of the angle of rotation β of the deflecting mirror . Suitable mathematical models can be used to determine the diameter, the caliber and the deformation of the examined tube at a point x o from these measured values. In addition, statements can be made on the reflectivity of the wall material for the wavelength of the respective radiation source by mathematically linking the radiation intensity detected by the detector with the respective distance between the detector and the light spot.
Da der Meßkopf an einen Fahrwagen angebracht wird, ist es möglich mittels der Vorwärtsbewegung dieses Fahrwagens die gesamte Rohrinnenwand punktweise abzurastern. Dabei hängt der Abstand zwischen den jeweiligen Meßpunkten nur noch von der Winkelgeschwindigkeit des Umlenkspiegels und der Geschwindigkeit der Vorwärtsbewegung ab. Es ist somit leicht möglich, die Meßpunktdichte exakt den Erfordernissen der jeweiligen Meßaufgabe anzupassen.Since the measuring head is attached to a trolley, it is possible by means of the forward movement of this trolley Scanning the entire pipe inner wall point by point. It depends on Distance between the respective measuring points only from the Angular velocity of the deflecting mirror and the Speed of forward movement. It is therefore easy possible, the measuring point density exactly the requirements of adapt to the respective measuring task.
Aufstellung der verwendeten BezugszeichenList of the reference numerals used
1 Rohr
2 Strahlungsquelle
3 optisches System
4 Umlenkspiegel
5 Leuchtfleck
6 optisches System
7 optische Achse
8 optische Achse
9 zeilenförmiger Detektor 1 pipe
2 radiation source
3 optical system
4 deflecting mirrors
5 light spots
6 optical system
7 optical axis
8 optical axis
9 line detector
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924206608 DE4206608A1 (en) | 1992-03-03 | 1992-03-03 | Internal measuring device for determining parameters of pipes for sanitation planning - has distance sensor using triangulation, with optical axis of light source coincident with rotational axis of deflection mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924206608 DE4206608A1 (en) | 1992-03-03 | 1992-03-03 | Internal measuring device for determining parameters of pipes for sanitation planning - has distance sensor using triangulation, with optical axis of light source coincident with rotational axis of deflection mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4206608A1 true DE4206608A1 (en) | 1993-09-09 |
Family
ID=6453081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19924206608 Withdrawn DE4206608A1 (en) | 1992-03-03 | 1992-03-03 | Internal measuring device for determining parameters of pipes for sanitation planning - has distance sensor using triangulation, with optical axis of light source coincident with rotational axis of deflection mirror |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4206608A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4314769A1 (en) * | 1993-05-05 | 1994-11-10 | Rico Mikroelektronik Gmbh | Method and device for focusing a sewer pipe television camera |
| DE4415582A1 (en) * | 1994-05-04 | 1995-11-09 | Autec Gmbh | Optical distance measurement of inner walls for e.g. measuring pipe wall strength |
| DE19506167A1 (en) * | 1995-02-22 | 1996-08-29 | Siemens Ag | Determining inner geometry of component, e.g. vacuum tube |
| US6249007B1 (en) | 1997-09-12 | 2001-06-19 | Thames Water Utilities Limited | Non-contact distance measuring apparatus |
| EP1342985A1 (en) * | 2002-03-06 | 2003-09-10 | Rheinmetall W & M GmbH | Method and apparatus for measuring wear of inner surfaces of tubes |
| DE102010049401A1 (en) * | 2010-10-26 | 2012-04-26 | Leistritz Extrusionstechnik Gmbh | Device for acquiring measurement information from an inner surface of a hollow body, in particular a bore of a single- or twin-screw extruder cylinder |
| CN104596432A (en) * | 2014-12-10 | 2015-05-06 | 安东检测有限公司 | Petroleum drill pipe joint detection device and method |
| RU2634873C2 (en) * | 2012-03-02 | 2017-11-07 | Бейкер Хьюз Инкорпорейтед | Device and method for determining internal profiles of hollow devices |
| CN108474653A (en) * | 2016-01-20 | 2018-08-31 | 三菱电机株式会社 | Three-dimensional measuring apparatus and its measurement aid in treatment method |
-
1992
- 1992-03-03 DE DE19924206608 patent/DE4206608A1/en not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4314769A1 (en) * | 1993-05-05 | 1994-11-10 | Rico Mikroelektronik Gmbh | Method and device for focusing a sewer pipe television camera |
| DE4415582A1 (en) * | 1994-05-04 | 1995-11-09 | Autec Gmbh | Optical distance measurement of inner walls for e.g. measuring pipe wall strength |
| DE19506167A1 (en) * | 1995-02-22 | 1996-08-29 | Siemens Ag | Determining inner geometry of component, e.g. vacuum tube |
| US6249007B1 (en) | 1997-09-12 | 2001-06-19 | Thames Water Utilities Limited | Non-contact distance measuring apparatus |
| GB2329244B (en) * | 1997-09-12 | 2002-02-20 | Thames Water Utilities | Non-contact measuring apparatus |
| DE10209953B4 (en) * | 2002-03-06 | 2007-03-22 | Rheinmetall Waffe Munition Gmbh | Device for measuring the wear of the inner surface of pipes |
| EP1342985A1 (en) * | 2002-03-06 | 2003-09-10 | Rheinmetall W & M GmbH | Method and apparatus for measuring wear of inner surfaces of tubes |
| DE102010049401A1 (en) * | 2010-10-26 | 2012-04-26 | Leistritz Extrusionstechnik Gmbh | Device for acquiring measurement information from an inner surface of a hollow body, in particular a bore of a single- or twin-screw extruder cylinder |
| RU2634873C2 (en) * | 2012-03-02 | 2017-11-07 | Бейкер Хьюз Инкорпорейтед | Device and method for determining internal profiles of hollow devices |
| CN104596432A (en) * | 2014-12-10 | 2015-05-06 | 安东检测有限公司 | Petroleum drill pipe joint detection device and method |
| CN104596432B (en) * | 2014-12-10 | 2018-05-04 | 安东检测有限公司 | Joint of petroleum drill rod detection device and method |
| CN108474653A (en) * | 2016-01-20 | 2018-08-31 | 三菱电机株式会社 | Three-dimensional measuring apparatus and its measurement aid in treatment method |
| CN108474653B (en) * | 2016-01-20 | 2020-03-20 | 三菱电机株式会社 | Three-dimensional measurement device and measurement support processing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2545340B1 (en) | Method and apparatus for measurement of the profile geometry of cylindrical bodies | |
| DE202006017076U1 (en) | Apparatus for optical contact free inspection of a tube or pipeline using optical triangulation | |
| EP3410091B1 (en) | Method for detecting a modulation transfer function and a centring system of an optical system | |
| DE2743054A1 (en) | OPTICAL MEASURING DEVICE WITH A LONGITUDINAL, FOCUSED BEAM | |
| DE3219389C2 (en) | ||
| DE19852149C2 (en) | Device for determining the spatial coordinates of objects | |
| DE4206608A1 (en) | Internal measuring device for determining parameters of pipes for sanitation planning - has distance sensor using triangulation, with optical axis of light source coincident with rotational axis of deflection mirror | |
| DE4320845C1 (en) | Arrangement for measuring scattered light in bores in work-pieces or in tubes | |
| DE102015201823B4 (en) | Device and method for the automated classification of the quality of workpieces | |
| EP1571413A1 (en) | Measuring apparatus for determining the straightness of shafts or hollow shafts | |
| EP1918687B1 (en) | Method and device for determining the position of the symmetrical axis of an aspherical lens surface | |
| DE102004043209A1 (en) | Instrument for optical examination of curved internal surfaces, projects annular beam onto internal surface and returns reflected light to camera | |
| DE10209953B4 (en) | Device for measuring the wear of the inner surface of pipes | |
| DE4446235A1 (en) | Measuring unit for inside surface of tubes esp. gun barrel with rifling grooves | |
| DE102016121659A1 (en) | Device and method for detecting and / or investigating a Abtrag on a surface of a cylindrical member | |
| WO2008052701A1 (en) | Method and device for determining the position of an axis of symmetry of an aspherical lens surface | |
| DE102021126695A1 (en) | Apparatus and method for estimating shrinkage in diameter of a heated pipe upon cooling | |
| DE102021126651A1 (en) | Device and method for measuring geometric properties of cylinders with a circular cross-section | |
| DE19846885B4 (en) | Method for radiographic measurement of a physical object | |
| DE19651433C1 (en) | Pipe carriage for camera e.g. in sewerage pipe | |
| EP2500615B1 (en) | Method for determining a tube diameter | |
| DE102019108743A1 (en) | Inspection unit that can be moved in a channel | |
| DE2428594C3 (en) | Device for the detection of areas with a different surface structure on workpieces with an otherwise smooth surface | |
| DE19843397C1 (en) | X=ray computer tomographic testing of object such as metal can by rotating along circumference until section of seam lies in beam path, and then turning about axis | |
| DE19544537C1 (en) | Non-contact determination of outer or inner profile e.g. of FBS tubes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |