DE4203729A1 - Mechanical amplitude-amplifier for high amplification of ultrasonic vibrations - has graded conical vibrator shape with reflection surface area larger than cross-section in the middle region - Google Patents
Mechanical amplitude-amplifier for high amplification of ultrasonic vibrations - has graded conical vibrator shape with reflection surface area larger than cross-section in the middle regionInfo
- Publication number
- DE4203729A1 DE4203729A1 DE19924203729 DE4203729A DE4203729A1 DE 4203729 A1 DE4203729 A1 DE 4203729A1 DE 19924203729 DE19924203729 DE 19924203729 DE 4203729 A DE4203729 A DE 4203729A DE 4203729 A1 DE4203729 A1 DE 4203729A1
- Authority
- DE
- Germany
- Prior art keywords
- cross
- section
- amplifier
- graded
- amplitude
- 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.)
- Ceased
Links
- 230000003321 amplification Effects 0.000 title claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 title claims description 5
- 230000007423 decrease Effects 0.000 claims abstract 3
- 230000005855 radiation Effects 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 238000005553 drilling Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 description 3
- 235000019687 Lamb Nutrition 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B3/02—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency involving a change of amplitude
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Description
Die Erfindung betrifft einen mechanischen Ampli tudenverstärker zur sehr hohen Verstärkung von Ultraschall-Schwingungen.The invention relates to a mechanical amplifier Student amplifier for very high amplification of Ultrasonic vibrations.
Diese macht sich erforderlich, weil die zur Um wandlung von elektrischer HF-Energie in mechani sche HP-Schwingungen verwendeten Piezoelemente nur begrenzte Amplituden erzeugen können und zu große Amplituden zur Verringerung des Wirkungs grades und zur Erhöhung der Eigenerwärmung der Piezoelemente führen.This is necessary because the order conversion of electrical HF energy into mechani HP vibrations used piezo elements can only produce limited amplitudes large amplitudes to reduce the effect degrees and to increase the self-heating of the Lead piezo elements.
Die aus dem Stand der Technik bekannten Amplitu denverstärker, wie sie bevorzugt in Ultraschall desintegratoren Verwendung finden, bestehen aus hochelastischem Material, meist aus Titanlegie rungen. Sie sind derart ausgebildet, daß die An regungsfläche Fe des Amplitudenverstärkers, auf welche die mechanischen Schwingungen durch den Ultraschallwandler übertragen werden, um ein Mehrfaches größer ist als die Abstrahlungsfläche Fa desselben, wobei der Amplitudenverstärker ähnlich einem abgestuften Zylinder als Lamb da/2-Schwinger ausgebildet ist. Dabei ist das Verhältnis von Abstrahlungsamplitude Aa und An regungsamplitude Ae bei einem als Stufenhorn ausgebildeten Amplitudenverstärker annäherndThe amplifiers known from the prior art, as they are preferably used in ultrasound disintegrators, consist of highly elastic material, mostly of titanium alloys. They are designed in such a way that the excitation surface F e of the amplitude amplifier, to which the mechanical vibrations are transmitted by the ultrasonic transducer, is several times larger than the radiation surface F a of the same, the amplitude amplifier being similar to a stepped cylinder as Lamb da / 2- Schwinger is trained. The ratio of radiation amplitude A a and excitation amplitude A e is approximately the same for an amplitude amplifier designed as a step horn
Um eine hohe Amplitudenverstärkung zu erreichen, ist es bisher üblich, daß die Anregungsfläche Fe des meist zylindrischen Oberteiles sehr groß aus gebildet ist oder sogar mehrere Amplitudenver stärker hintereinander angebracht werden müs sen.In order to achieve a high amplitude amplification, it has hitherto been customary for the excitation surface F e of the mostly cylindrical upper part to be formed very large, or even for a plurality of amplitudes to be attached more successively.
Als nachteilig daran erweist sich der große Auf wand an hochwertigem Material, das hohe Gewicht und die damit verbundene Unhandlichkeit des Des integrators sowie die durch die große Masse ver ursachten höheren Anforderungen an die kompli zierte elektronische Schaltung des HF-Genera tors.The big up turns out to be disadvantageous wrangled on high quality material, the high weight and the associated unwieldiness of the Des integrators as well as the ver cause higher demands on the compli graced electronic circuit of the HF-Genera tors.
Es ist daher Aufgabe der vorliegenden Erfindung, den Materialeinsatz bei einer vorgegebenen Am plitudenverstärkung gegenüber dem bisherigen Stand der Technik deutlich zu verringern.It is therefore an object of the present invention the use of materials at a given Am increase in confidence compared to the previous one To significantly reduce the state of the art.
Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil des Anspruches 1 genannten Merkmale gelöst.According to the invention, this object is achieved by the characterizing part of claim 1 Features solved.
Vorteilhafte Ausgestaltungen ergeben sich aus den Merkmalen der Unteransprüche.Advantageous configurations result from the characteristics of the subclaims.
Der Amplitudenverstärker als Lambda/2-Schwinger ist erfindungsgemäß dadurch gekennzeichnet, daß im Bereich der Abstufung desselben, also bei ei ner Länge von etwa Lambda/4 der Querschnitt Fm deutlich kleiner als der Querschnitt der Ab strahlungsfläche Fa ausgebildet wird. Dadurch läßt sich eine Amplitudenverstärkung erreichen, die annähernd dem VerhältnisThe amplitude amplifier as a lambda / 2 oscillator is characterized in that the cross section F m is formed significantly smaller than the cross section of the radiation area F a in the range of the same, that is to say with a length of approximately lambda / 4, the cross section F m . This enables an amplification of the amplitude to be achieved which is approximately the ratio
entspricht.corresponds.
Durch den zum Ende des Amplitudenverstärkers hin größer werdenden Querschnitt wird darüberhinaus bei gleicher Frequenz eine insgesamt kürzere Ausführung erreicht.By the end of the amplitude amplifier the cross-section becomes larger a shorter overall at the same frequency Execution reached.
Erfindungsgemäß kann das mit der in Fig. 1 dar gestellten Anordnung erreicht werden.According to the invention can be achieved with the arrangement shown in Fig. 1.
Dabei zeigt Fig. 1, daß sich die Querschnitts fläche des Unterteiles 6 in Richtung, Mitte des Amplitudenverstärkers bis zum Querschnitt 1 ver jüngt.Here, FIG. 1 shows that the cross-sectional area to the lower part 6 in the direction of the amplitude of the amplifier to the cross-section tapers center 1 ver.
Durch die konische Ausführung wird erreicht, daß beim Eintauchen in Flüssigkeiten die Abstrahlung der Schalleistung wie gewünscht über die Ab strahlungsfläche 2 erfolgt und parasitäre Schall abstrahlungen in andere Richtungen vermieden werden. The conical design ensures that, when immersed in liquids, the sound power is emitted as desired via the radiation surface 2 and parasitic sound emissions in other directions are avoided.
In Fig. 2 wird die erfindungsgemäße Lösung da durch erreicht, daß im Bereich der Abstufung des Amplitudenverstärkers durch eine vom Oberteil 5 her eingebrachte Bohrung 4 die gewünschte Quer schnittsverringerung erreicht wird. Die Bohrung muß dabei mindestens zu 50% in die Länge des Un terteiles 6 hineinragen. Die Bohrung kann auch von dem Unterteil 6 ausgehend bis zur Abstufung des Amplitudenverstärkers eingebracht sein.In Fig. 2, the solution according to the invention is achieved by the fact that the desired cross-sectional reduction is achieved in the area of the gradation of the amplitude amplifier through a bore 4 introduced from the upper part 5 . The bore must protrude at least 50% into the length of the lower part 6 Un. The bore can also be made starting from the lower part 6 up to the gradation of the amplitude amplifier.
Claims (3)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924203729 DE4203729A1 (en) | 1992-02-06 | 1992-02-06 | Mechanical amplitude-amplifier for high amplification of ultrasonic vibrations - has graded conical vibrator shape with reflection surface area larger than cross-section in the middle region |
| DE9218777U DE9218777U1 (en) | 1992-02-06 | 1992-02-06 | Mechanical amplitude amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19924203729 DE4203729A1 (en) | 1992-02-06 | 1992-02-06 | Mechanical amplitude-amplifier for high amplification of ultrasonic vibrations - has graded conical vibrator shape with reflection surface area larger than cross-section in the middle region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4203729A1 true DE4203729A1 (en) | 1993-08-12 |
Family
ID=6451279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19924203729 Ceased DE4203729A1 (en) | 1992-02-06 | 1992-02-06 | Mechanical amplitude-amplifier for high amplification of ultrasonic vibrations - has graded conical vibrator shape with reflection surface area larger than cross-section in the middle region |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4203729A1 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5707483A (en) * | 1996-07-05 | 1998-01-13 | Minnesota Mining And Manufacturing Company | Rotary acoustic horn |
| WO1998001238A1 (en) * | 1996-07-05 | 1998-01-15 | Minnesota Mining And Manufacturing Company | Stacked rotary acoustic horn |
| WO1999033665A1 (en) * | 1997-12-31 | 1999-07-08 | Mentor Corporation | Ultrasonic liposuction probe |
| US7735751B2 (en) | 2006-01-23 | 2010-06-15 | Kimberly-Clark Worldwide, Inc. | Ultrasonic liquid delivery device |
| US7744015B2 (en) | 2006-01-23 | 2010-06-29 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| US7810743B2 (en) | 2006-01-23 | 2010-10-12 | Kimberly-Clark Worldwide, Inc. | Ultrasonic liquid delivery device |
| US7819335B2 (en) | 2006-01-23 | 2010-10-26 | Kimberly-Clark Worldwide, Inc. | Control system and method for operating an ultrasonic liquid delivery device |
| US7918211B2 (en) | 2006-01-23 | 2011-04-05 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| US7963458B2 (en) | 2006-01-23 | 2011-06-21 | Kimberly-Clark Worldwide, Inc. | Ultrasonic liquid delivery device |
| US8028930B2 (en) | 2006-01-23 | 2011-10-04 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| US8191732B2 (en) | 2006-01-23 | 2012-06-05 | Kimberly-Clark Worldwide, Inc. | Ultrasonic waveguide pump and method of pumping liquid |
| CN103624355A (en) * | 2012-12-17 | 2014-03-12 | 上海声定科技有限公司 | Welding wire machine amplitude-change pole |
| CN104289409A (en) * | 2013-07-15 | 2015-01-21 | 北京中电科电子装备有限公司 | Ultrasonic transducer and clamping mechanism thereof |
| CN106182153A (en) * | 2014-08-21 | 2016-12-07 | 周振嘉 | Ultrasonic micron precision processing and forming device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2948154A (en) * | 1956-02-16 | 1960-08-09 | Cavitron Corp | Acoustic impedance transformer |
| DE1207123B (en) * | 1963-08-02 | 1965-12-16 | Alcatel Sa | Composite vibrator for welding or ultrasonic processing devices with piezoelectric ceramic discs |
| CH498662A (en) * | 1968-11-12 | 1970-11-15 | Erapa Ag | Electromechanical ultrasonic energy generator, in particular for welding plastic strips |
-
1992
- 1992-02-06 DE DE19924203729 patent/DE4203729A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2948154A (en) * | 1956-02-16 | 1960-08-09 | Cavitron Corp | Acoustic impedance transformer |
| DE1207123B (en) * | 1963-08-02 | 1965-12-16 | Alcatel Sa | Composite vibrator for welding or ultrasonic processing devices with piezoelectric ceramic discs |
| CH498662A (en) * | 1968-11-12 | 1970-11-15 | Erapa Ag | Electromechanical ultrasonic energy generator, in particular for welding plastic strips |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5707483A (en) * | 1996-07-05 | 1998-01-13 | Minnesota Mining And Manufacturing Company | Rotary acoustic horn |
| WO1998001238A1 (en) * | 1996-07-05 | 1998-01-15 | Minnesota Mining And Manufacturing Company | Stacked rotary acoustic horn |
| WO1999033665A1 (en) * | 1997-12-31 | 1999-07-08 | Mentor Corporation | Ultrasonic liposuction probe |
| US7963458B2 (en) | 2006-01-23 | 2011-06-21 | Kimberly-Clark Worldwide, Inc. | Ultrasonic liquid delivery device |
| US8191732B2 (en) | 2006-01-23 | 2012-06-05 | Kimberly-Clark Worldwide, Inc. | Ultrasonic waveguide pump and method of pumping liquid |
| US7810743B2 (en) | 2006-01-23 | 2010-10-12 | Kimberly-Clark Worldwide, Inc. | Ultrasonic liquid delivery device |
| US7819335B2 (en) | 2006-01-23 | 2010-10-26 | Kimberly-Clark Worldwide, Inc. | Control system and method for operating an ultrasonic liquid delivery device |
| US7918211B2 (en) | 2006-01-23 | 2011-04-05 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| US7735751B2 (en) | 2006-01-23 | 2010-06-15 | Kimberly-Clark Worldwide, Inc. | Ultrasonic liquid delivery device |
| US8028930B2 (en) | 2006-01-23 | 2011-10-04 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| US7744015B2 (en) | 2006-01-23 | 2010-06-29 | Kimberly-Clark Worldwide, Inc. | Ultrasonic fuel injector |
| CN103624355A (en) * | 2012-12-17 | 2014-03-12 | 上海声定科技有限公司 | Welding wire machine amplitude-change pole |
| CN103624355B (en) * | 2012-12-17 | 2015-12-16 | 上海声定科技有限公司 | Bonding equipment ultrasonic transformer |
| CN104289409A (en) * | 2013-07-15 | 2015-01-21 | 北京中电科电子装备有限公司 | Ultrasonic transducer and clamping mechanism thereof |
| CN104289409B (en) * | 2013-07-15 | 2017-06-16 | 北京中电科电子装备有限公司 | A kind of ultrasonic transducer and its clamping device |
| CN106182153A (en) * | 2014-08-21 | 2016-12-07 | 周振嘉 | Ultrasonic micron precision processing and forming device |
| CN106182153B (en) * | 2014-08-21 | 2018-03-13 | 周振嘉 | Ultrasonic micron precision processing and forming device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |