DE19735087A1 - Device for testing soundness from leaks of containers using ultrasound - Google Patents
Device for testing soundness from leaks of containers using ultrasoundInfo
- Publication number
- DE19735087A1 DE19735087A1 DE1997135087 DE19735087A DE19735087A1 DE 19735087 A1 DE19735087 A1 DE 19735087A1 DE 1997135087 DE1997135087 DE 1997135087 DE 19735087 A DE19735087 A DE 19735087A DE 19735087 A1 DE19735087 A1 DE 19735087A1
- Authority
- DE
- Germany
- Prior art keywords
- ultrasound
- transmission body
- containers
- ultrasound transmission
- contact surface
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/225—Supports, positioning or alignment in moving situation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/227—Details, e.g. general constructional or apparatus details related to high pressure, tension or stress conditions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/269—Various geometry objects
- G01N2291/2695—Bottles, containers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Examining Or Testing Airtightness (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
Description
Die Erfindung betrifft eine Apparatur zur Dichtigkeitsprüfung von Behältnissen unter Beaufschlagung derselben mit Ultraschall.The invention relates to an apparatus for leak testing of containers subjecting them to ultrasound.
Die Prüfung der Dichtigkeit von Behältnissen, welche Flüssigkeiten enthalten, in denen Gase gelöst sind, erfolgt nach dem Stand der Technik u. a. durch Ultraschallbehandlung in einem Ultraschallbad.Testing the tightness of containers that contain liquids in which gases are dissolved, is done according to the prior art. a. by Ultrasound treatment in an ultrasound bath.
Dabei wird das zu prüfende Behältnis in ein mit einer Übertragungsflüssigkeit gefülltes Ultraschallbad gebracht und dort einer Beschallung ausgesetzt. Im Falle einer Undichtigkeit des zu prüfenden Behältnisses tritt infolge der ultraschallvermittelten Gasfreisetzung aus der im Behältnis befindlichen Flüssigkeit ein sichtbares Flüssigkeit-Gas-Gemisch (Schaum) aus der undichten Stelle des Behältnisses aus. Die Flüssigkeit im Ultraschallbad, üblicherweise Wasser, dient der Übertragung des Ultraschalles von den Ultraschallschwingern auf die Flüssigkeit im Inneren der auf Dichtigkeit zu prüfenden Behältnisse. Die Ultra schallschwinger haben direkten oder indirekten Kontakt zu der im Ultraschallbad befindlichen Flüssigkeit.The container to be tested is placed in a container with a transmission fluid filled ultrasound bath and exposed there to sonication. In the event of a leak in the container to be checked, the following occurs the ultrasound-mediated gas release from the one in the container Liquid a visible liquid-gas mixture (foam) from the leaking Issue the container. The liquid in the ultrasonic bath, usually water, is used to transfer the ultrasound from the ultrasound transducers to the Liquid inside the containers to be checked for leaks. The ultra Sound transducers have direct or indirect contact with those in the ultrasonic bath liquid.
Die Verwendung eines Ultraschallbades zur Dichtigkeitsprüfung von Behältnissen
hat eine Reihe von wesentlichen technologischen Nachteilen:
The use of an ultrasonic bath for leak testing containers has a number of major technological disadvantages:
- 1. Es ist ein spezieller Einbringmechanismus für die zu prüfenden Behältnisse notwendig.1. It is a special insertion mechanism for the containers to be tested necessary.
- 2. Durch die Prüfung kommt es zu einer Verunreinigung der Flüssigkeit im Ultraschallbad .2. The test results in contamination of the liquid in the Ultrasonic bath.
- 3. Durch die Flüssigkeit im Ultraschallbad kommt es zum Aufschwimmen von leeren Behältnissen Insgesamt führen diese Nachteile zu Einschränkungen im kontinuierlichen Prüf prozeß Dies trifft vor allem für die Dichtigkeitsprüfung von Getränkebehältnissen, die in sehr hohen Stückzahlen pro Zeiteinheit getestet werden müssen (Bier, Limonade etc.) zu.3. Due to the liquid in the ultrasonic bath, empty ones float Containers Overall, these disadvantages lead to restrictions in the continuous test process This is especially true for the leak test of beverage containers, which have to be tested in very large numbers per unit of time (beer, Lemonade etc.).
Aufgabe der Erfindung ist es, eine Apparatur zu beschreiben, durch welche Ultraschall ohne die Verwendung eines zusätzlichen flüssigen Übertragungsmediums auf die auf Dichtigkeit zu prüfenden Behältnisse übertragen werden kann.The object of the invention is to describe an apparatus by which Ultrasound without the use of an additional liquid transmission medium can be transferred to the containers to be checked for leaks.
Diese Aufgabe wird erfindungsgemäß durch eine Apparatur der eingangs genannten Art gelöst, die dadurch gekennzeichnet ist, daß diese mindestens einen Hoch frequenzgenerator bekannter Bauart, mindestens einen Ultraschallwandler bekannter Bauart, mindestens einen Ultraschallübertragungskörper beliebiger Größe, Form und Anordnung und einer Zu- und Abfördereinrichtung für die zu prüfenden Behält nisse mit der Kontaktfläche des Ultraschallübertragungskörpers diskontinuierlich oder kontinuierlich einzeln oder chargenweise oder durch kontinuierliches Vor beiführen in Kontakt gebracht werden.This object is achieved according to the invention by an apparatus of the type mentioned Kind solved, which is characterized in that this at least one high known frequency generator, at least one ultrasonic transducer known Design, at least one ultrasound transmission body of any size, shape and arrangement and a supply and discharge device for the container to be tested nisse discontinuously with the contact surface of the ultrasound transmission body or continuously individually or in batches or by continuous pre be brought into contact.
Die Erzeugung und Regelung der Ultraschallintensität erfolgt über einen Ultra schallgenerator bekannter Bauart, der mit einer Prozeßvisualisierung ausgerüstet sein kann-. Der Ultraschallübertragungskörper beliebiger Größe und Form beinhaltet Apparatur zur Dichtigkeitsprüfung von Behältnissen.The ultrasound intensity is generated and controlled via an Ultra Sound generator of a known type, equipped with a process visualization can be-. The ultrasound transmission body includes any size and shape Apparatus for leak testing containers.
Eine Kontaktfläche, an der die zu prüfenden Behältnisse mittels einer Zuförder einrichtung, die aus einem Transportband und einer Führungsschiene besteht, vorbei geführt werden.A contact surface on which the containers to be checked are conveyed by means of a feeder device consisting of a conveyor belt and a guide rail, be passed by.
Die mit dieser Apparatur erzielbaren Vorteile bestehen insbesondere in der Beseitigung, der dem Stand der Technik anhaftenden Nachteile. Vorteilhafte Ausführungsmerkmale sind den Unteransprüchen entnehmbar.The advantages that can be achieved with this apparatus are in particular: Elimination of the disadvantages inherent in the prior art. Advantageous design features can be found in the subclaims.
Die Erfindung ist nachstehend anhand der Zeichnung näher erläutert.The invention is explained below with reference to the drawing.
Die Erzeugung und Regelung der Ultraschallintensität erfolgt über einen Ultraschallgenerator bekannter Bauart 3, der mit einer Prozeßvisualisierung ausgerüstet sein kann.The generation and control of the ultrasound intensity takes place via an ultrasound generator of known type 3 , which can be equipped with a process visualization.
Der Ultraschallübertragungskörper beliebiger Größe und Form beinhaltet eine Kontaktfläche 8, an der die zu prüfenden Behältnisse mittels einer Zuförder einrichtung, die aus einem Transportband 4 und einer Führungsschiene 5 besteht, vorbei geführt werden.The ultrasound transmission body of any size and shape includes a contact surface 8 , on which the containers to be checked by means of a feed device, which consists of a conveyor belt 4 and a guide rail 5 , are passed over.
Die Position der Führungsschiene 5 kann durch einen Druckmechanismus, vorzugs weise einer Gegendruckfederung bekannter Bauart 10, an die Behältnisgröße angepaßt werden.The position of the guide rail 5 can be adapted to the size of the container by a pressure mechanism, preferably a known type of counter pressure spring 10 .
Das Förderband bekannter Bauart 4 kann in Schrägstellung senkrecht zur Förder richtung so angeordnet sein, daß der für die Ultraschallübertragung benötigte Kontakt zwischen der hochpolierten Gleitfläche des Ultraschallübertragungskörpers und den Behältnissen auch ohne Zuhilfenahme der Führungsschiene 5 hergestellt werden kann.The conveyor belt of known type 4 can be arranged in an inclined position perpendicular to the conveying direction so that the contact required for the ultrasound transmission between the highly polished sliding surface of the ultrasound transmission body and the containers can also be produced without the aid of the guide rail 5 .
Die Größe und Form der Apparatur richtet sich nach den Maßen und der Form des Ultraschallübertragungskörpers 3. Größe und Form des Ultraschallübertragungs körpers wiederum hängen von der Anzahl und Art der pro Zeiteinheit zu prüfenden Behältnisse und von der räumlichen Beschaffenheit des Prüfungsortes innerhalb eines Produktionsprozesses ab.The size and shape of the apparatus depends on the dimensions and the shape of the ultrasound transmission body 3 . The size and shape of the ultrasound transmission body in turn depend on the number and type of containers to be inspected per unit of time and on the spatial nature of the inspection location within a production process.
Das Transportband 4 kann selbst als Ultraschallübertragungskörper 3 aus gebildet sein. The conveyor belt 4 can itself be formed as an ultrasound transmission body 3 .
11
Ultraschall-Generator
Ultrasound generator
22nd
Ultraschall-Wandler
Ultrasound transducer
33rd
Ultraschall-Übertragungskörper
Ultrasound transmission body
44th
Transportband
Conveyor belt
55
Führungsschiene
Guide rail
66
Ultraschall -Schwingelemente
Ultrasonic vibrating elements
77
Sonotrode
Sonotrode
88th
Kontaktfläche
Contact area
99
zu beschallender Gegenstand
object to be sonicated
1010th
Gegendruckfederung
Back pressure suspension
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997135087 DE19735087C2 (en) | 1997-08-13 | 1997-08-13 | Apparatus for leak testing containers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997135087 DE19735087C2 (en) | 1997-08-13 | 1997-08-13 | Apparatus for leak testing containers |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19735087A1 true DE19735087A1 (en) | 1999-03-04 |
DE19735087C2 DE19735087C2 (en) | 2000-09-21 |
Family
ID=7838858
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1997135087 Expired - Fee Related DE19735087C2 (en) | 1997-08-13 | 1997-08-13 | Apparatus for leak testing containers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19735087C2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003052403A3 (en) * | 2001-12-04 | 2003-07-31 | Picoliter Inc | Acoustic assessment of fluids in a plurality of reservoirs |
US7354141B2 (en) | 2001-12-04 | 2008-04-08 | Labcyte Inc. | Acoustic assessment of characteristics of a fluid relevant to acoustic ejection |
US7454958B2 (en) | 2001-12-04 | 2008-11-25 | Labcyte Inc. | Acoustic determination of properties of reservoirs and of fluids contained therein |
US7717544B2 (en) | 2004-10-01 | 2010-05-18 | Labcyte Inc. | Method for acoustically ejecting a droplet of fluid from a reservoir by an acoustic fluid ejection apparatus |
CN104515654A (en) * | 2013-09-26 | 2015-04-15 | 北京卫星环境工程研究所 | Portable non-contact spacecraft sealed compartment on-orbit leakage ultrasonic detector |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1158287B (en) * | 1960-08-06 | 1963-11-28 | Enzinger Union Werke Ag | Method and device for checking the tightness of the closures of closed containers filled with carbonated liquids |
DE3129498A1 (en) * | 1981-07-27 | 1983-02-17 | Krautkrämer, GmbH, 5000 Köln | ULTRASONIC TEST HEAD FOR HAND TESTING TUBES AND RODS |
-
1997
- 1997-08-13 DE DE1997135087 patent/DE19735087C2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1158287B (en) * | 1960-08-06 | 1963-11-28 | Enzinger Union Werke Ag | Method and device for checking the tightness of the closures of closed containers filled with carbonated liquids |
DE3129498A1 (en) * | 1981-07-27 | 1983-02-17 | Krautkrämer, GmbH, 5000 Köln | ULTRASONIC TEST HEAD FOR HAND TESTING TUBES AND RODS |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003052403A3 (en) * | 2001-12-04 | 2003-07-31 | Picoliter Inc | Acoustic assessment of fluids in a plurality of reservoirs |
US6938995B2 (en) | 2001-12-04 | 2005-09-06 | Picoliter Inc. | Acoustic assessment of fluids in a plurality of reservoirs |
US7354141B2 (en) | 2001-12-04 | 2008-04-08 | Labcyte Inc. | Acoustic assessment of characteristics of a fluid relevant to acoustic ejection |
US7454958B2 (en) | 2001-12-04 | 2008-11-25 | Labcyte Inc. | Acoustic determination of properties of reservoirs and of fluids contained therein |
US7899645B2 (en) | 2001-12-04 | 2011-03-01 | Labcyte Inc. | Acoustic assessment of characteristics of a fluid relevant to acoustic ejection |
US7717544B2 (en) | 2004-10-01 | 2010-05-18 | Labcyte Inc. | Method for acoustically ejecting a droplet of fluid from a reservoir by an acoustic fluid ejection apparatus |
US9221250B2 (en) | 2004-10-01 | 2015-12-29 | Labcyte Inc. | Acoustically ejecting a droplet of fluid from a reservoir by an acoustic fluid ejection apparatus |
CN104515654A (en) * | 2013-09-26 | 2015-04-15 | 北京卫星环境工程研究所 | Portable non-contact spacecraft sealed compartment on-orbit leakage ultrasonic detector |
Also Published As
Publication number | Publication date |
---|---|
DE19735087C2 (en) | 2000-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |