DE10053508A1 - Wave guide consists of bar or wire made of thin coiled foil, end discs, and homogeneous material-join. - Google Patents
Wave guide consists of bar or wire made of thin coiled foil, end discs, and homogeneous material-join.Info
- Publication number
- DE10053508A1 DE10053508A1 DE2000153508 DE10053508A DE10053508A1 DE 10053508 A1 DE10053508 A1 DE 10053508A1 DE 2000153508 DE2000153508 DE 2000153508 DE 10053508 A DE10053508 A DE 10053508A DE 10053508 A1 DE10053508 A1 DE 10053508A1
- Authority
- DE
- Germany
- Prior art keywords
- waveguide
- homogeneous material
- wave guide
- join
- thin
- 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- Withdrawn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
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/24—Methods or devices for transmitting, conducting or directing sound for conducting sound through solid bodies, e.g. wires
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
Stab- oder drahtförmige Wellenleiter werden zur Übertragung von Ultraschallsignalen zwischen einem Wandler (Sender oder Empfänger) und einem Medium in einem technologischen Prozess z. B. bei der Messung der Materialdicke oder des Durchflusses angewendet.Rod or wire shaped waveguides are used to transmit ultrasonic signals between one Converter (transmitter or receiver) and a medium in a technological process such. B. at the Measurement of material thickness or flow rate applied.
Bei der Übertragung Ultraschallsignale mit einem üblichen massiven, draht- oder stabförmigen Wellenleiter entstehen durch Dispersion von Schallenergie mit wachsender Frequenz zunehmende Übertragungsverluste. Diese Verluste sind außerdem dem Durchmesser des Wellenleiters proportional. Die Übertragung hochfrequenter Ultraschallsignale mit hinreichend niedrige Verluste erfordert deshalb sehr kleine Durchmesser des Wellenleiters-Durchmesser, die für eine effektive Ankopplung an ein Medium oder an Elemente der Ultraschalltechnik in der Regel viel zu klein sind.When transmitting ultrasonic signals with a conventional solid, wire or rod-shaped Waveguides are created by dispersing sound energy with increasing frequency Transmission losses. These losses are also proportional to the diameter of the waveguide. The transmission of high-frequency ultrasound signals with sufficiently low losses therefore requires very small diameter of the waveguide diameter, which is required for an effective coupling to a Medium or elements of ultrasound technology are usually much too small.
Aufgabe der Erfindung ist ein Wellenleiter, der mit hinreichend großen Durchmesser für eine effektive Ankopplung eine verlustarme Übertragung hochfrequenter Ultraschallsignale ermöglicht.The object of the invention is a waveguide with a sufficiently large diameter for an effective Coupling enables low-loss transmission of high-frequency ultrasound signals.
Diese Aufgabe wird durch einen Wellenleiter nach Anspruch 1 oder 2 gelöst.This object is achieved by a waveguide according to claim 1 or 2.
Es wurde gefunden, dass die Übertragungsverluste hochfrequenter Ultraschallsignale in einem Wellenleiter aus dünnwandiger Folie oder dünnwandigen Rohr ähnlich gering sind wie bei einem dünnen Draht. Aber durch die Wicklung der Folie oder durch die konzentrische Bündelung von Rohren wird ein größerer Übertragungsquerschnitt, damit eine bessere Ankoppelung mit höherer Energieübertragung erreicht.It has been found that the transmission losses of high-frequency ultrasonic signals in one Waveguides made of thin-walled film or thin-walled tube are as small as a thin one Wire. But by wrapping the film or concentrically bundling pipes, one becomes Larger transmission cross-section, so better coupling with higher energy transmission reached.
Fig. 1 zeigt einen stabförmigen Wellenleiter (1) mit Endscheiben (4) und homogenen, geschweißten Materialverbindungen (5) zur gewickelten Folie (2). Fig. 1 shows a rod-shaped waveguide ( 1 ) with end plates ( 4 ) and homogeneous, welded material connections ( 5 ) to the wound film ( 2 ).
Fig. 2 zeigt den Querschnitt des stabförmigen Wellenleiters (1) mit der gewickelten Folie (2). Fig. 2 shows the cross section of the rod-shaped waveguide ( 1 ) with the wound film ( 2 ).
Fig. 3 zeigt den Querschnitt des stabförmigen Wellenleiters (1) mit konzentrisch gebündelten, dünnwandigen Rohren (3). Fig. 3 shows the cross section of the rod-shaped waveguide ( 1 ) with concentrically bundled, thin-walled tubes ( 3 ).
Claims (2)
wobei der Wellenleiter aus einer dünnen, aufgewickelten Folie (2) oder besteht,
wobei an den stirnseitigen Enden des Wellenleiters Scheiben (4) angeordnet sind, die zu der aufgewickelten Folie (2) eine homogene Materialverbindung (5) besitzen.1. rod-shaped or wire-shaped waveguide ( 1 ) for the transmission of high-frequency sound signals or sound currents,
wherein the waveguide consists of a thin, wound film ( 2 ) or
wherein discs ( 4 ) are arranged at the front ends of the waveguide and have a homogeneous material connection ( 5 ) to the wound film ( 2 ).
wobei der Wellenleiter aus einem Bündel konzentrisch angeordneter, dünnwandiger Rohre (3) besteht,
wobei an den stirnseitigen Enden des Wellenleiters Scheiben (4) angeordnet sind, die zu den konzentrisch angeordneten Rohren (3) eine homogene Materialverbindung (5) besitzen.2. rod-shaped or wire-shaped waveguide ( 1 ) for the transmission of high-frequency sound signals or sound currents,
the waveguide consisting of a bundle of concentrically arranged thin-walled tubes ( 3 ),
wherein discs ( 4 ) are arranged at the front ends of the waveguide and have a homogeneous material connection ( 5 ) to the concentrically arranged tubes ( 3 ).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000153508 DE10053508A1 (en) | 2000-10-27 | 2000-10-27 | Wave guide consists of bar or wire made of thin coiled foil, end discs, and homogeneous material-join. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2000153508 DE10053508A1 (en) | 2000-10-27 | 2000-10-27 | Wave guide consists of bar or wire made of thin coiled foil, end discs, and homogeneous material-join. |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10053508A1 true DE10053508A1 (en) | 2002-02-07 |
Family
ID=7661394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2000153508 Withdrawn DE10053508A1 (en) | 2000-10-27 | 2000-10-27 | Wave guide consists of bar or wire made of thin coiled foil, end discs, and homogeneous material-join. |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10053508A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10205545A1 (en) * | 2001-11-28 | 2003-06-12 | Krohne Ag Basel | Flowmeter, e.g. ultrasound or vortex flowmeter, comprises seal that is positioned between ultrasound waveguide and measuring tube |
WO2008152025A2 (en) | 2007-06-11 | 2008-12-18 | Forschungszentrum Dresden - Rossendorf E.V. | Method for measuring flow rates in liquid melts |
WO2008152031A2 (en) | 2007-06-11 | 2008-12-18 | Forschungszentrum Dresden - Rossendorf E.V. | Ultrasonic sensor for measuring flow rates in liquid melts |
-
2000
- 2000-10-27 DE DE2000153508 patent/DE10053508A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10205545A1 (en) * | 2001-11-28 | 2003-06-12 | Krohne Ag Basel | Flowmeter, e.g. ultrasound or vortex flowmeter, comprises seal that is positioned between ultrasound waveguide and measuring tube |
DE10205545B4 (en) * | 2001-11-28 | 2005-09-15 | Krohne Ag | Flowmeter, e.g. ultrasound or vortex flowmeter, comprises seal that is positioned between ultrasound waveguide and measuring tube |
WO2008152025A2 (en) | 2007-06-11 | 2008-12-18 | Forschungszentrum Dresden - Rossendorf E.V. | Method for measuring flow rates in liquid melts |
WO2008152031A2 (en) | 2007-06-11 | 2008-12-18 | Forschungszentrum Dresden - Rossendorf E.V. | Ultrasonic sensor for measuring flow rates in liquid melts |
DE102007027391B3 (en) * | 2007-06-11 | 2009-01-08 | Forschungszentrum Dresden - Rossendorf E.V. | Ultrasonic sensor for measuring local flow velocities in liquid melts |
DE102007027392B3 (en) * | 2007-06-11 | 2009-01-15 | Forschungszentrum Dresden - Rossendorf E.V. | Method for measuring local flow velocities in liquid melts |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
8122 | Nonbinding interest in granting licenses declared | ||
8139 | Disposal/non-payment of the annual fee |