EP0940801A2 - Ultraschallwandlereinrichtung mit Zentrier-Formteil - Google Patents
Ultraschallwandlereinrichtung mit Zentrier-Formteil Download PDFInfo
- Publication number
- EP0940801A2 EP0940801A2 EP99103792A EP99103792A EP0940801A2 EP 0940801 A2 EP0940801 A2 EP 0940801A2 EP 99103792 A EP99103792 A EP 99103792A EP 99103792 A EP99103792 A EP 99103792A EP 0940801 A2 EP0940801 A2 EP 0940801A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ultrasonic transducer
- foam
- transducer device
- disk
- layer disc
- 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
- 239000006260 foam Substances 0.000 claims abstract description 17
- 238000010097 foam moulding Methods 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 abstract description 3
- 238000002604 ultrasonography Methods 0.000 abstract description 3
- 230000003044 adaptive effect Effects 0.000 abstract 2
- 239000006261 foam material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
- G10K11/004—Mounting transducers, e.g. provided with mechanical moving or orienting device
-
- 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
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
- B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
- B06B1/067—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface which is used as, or combined with, an impedance matching layer
Definitions
- the invention relates to an ultrasonic transducer device with a piezoceramic disc and a matching layer disc having ultrasonic transducer, the partial embedded in a housing using a polymer foam is.
- a generic ultrasonic transducer device is from the DE 33 01 848 C2 and DE 37 34 070 C2 are already known. Here are driven or to embed the ultrasonic transducer syntactic foams used. Embedding the ultrasonic transducers has three main functions. It should have a precise and reliable mechanical Bracket of the ultrasonic transducer, a mechanical one Damping effect as well as a visually appealing and opposite Insensitive converter visible surface reached become. The mechanical damping effect takes place in the way that the transducer vibration to achieve high acoustic Sensitivity moderately and reproducibly dampened becomes.
- the invention has for its object the above Improve ultrasonic transducer device in such a way that the ultrasound transducer is centered in a simple manner and at the same time a visually appealing, void-free viewing area is guaranteed.
- the object is achieved in that the adapter layer disc centered on its peripheral surface by a foam molding is.
- Foam molded parts are dimensionally accurate and inexpensive, for example by punching out of foam sheets to let.
- the use of such prefabricated and thus pre-testable centering moldings on the converter face enables series production with very simple and inexpensive devices while minimizing of the committee due to optical defects on the visible surface.
- Modern foams e.g. various cellular rubber materials, Are polyethylene or polyurethane foams mechanically robust and resistant to climatic and chemical influences.
- An advantageous development of the invention consists in that the foam molding is designed as a ring on which the circumferential surface of the adapter layer disc rests. This is a very simple and stable in terms of shape Execution of the foam molding.
- the foam molding is made of a closed-cell foam Structure is made. Otherwise it is not to be excluded that when potting the ultrasonic transducer small amounts of pourable foam mass in the cell structure penetrate and thereby harden what vibration damping very adversely affected.
- the ultrasonic transducer 1 shows an ultrasonic transducer device with a Ultrasonic transducer, which is essentially a matching layer disc 1 and a piezoceramic disk 2.
- the ultrasonic transducer 1, 2 here is formed by a centering ring 4 Centered foam molding that is flush with the Transducer visible surface and a cylindrical housing 3 completes.
- the ultrasound transducer is in the interior of the housing 3 1,2 embedded in a foam 5 so that a positive and non-positive mechanical mounting of the ultrasonic transducer 1.2 in the housing 3 results.
- the foam molding 4 ensures a flawless, void-free Visible area. Because of the sealing effect of the foam molding 4 can be potted with the foam 5 practically without any device effort can be carried out.
- the further exemplary embodiment according to FIG. 2 shows a minor one Modification of the exemplary embodiment according to FIG. 1.
- This consists in the fact that another foam molded part 6 as an elastic spacer and sealing ring between the Front surface of the ultrasonic transducer 1,2 and here on the Front 3 inwardly projecting housing is inserted.
- the foam molding 6 is largely covered by the protrusion of the housing 3, whereby a protective function against mechanical influences is.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measuring Volume Flow (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
Description
- FIG 1
- eine Ultraschallwandlereinrichtung mit bündiger Sichtfläche und
- FIG 2
- eine Ultraschallwandlereinrichtung mit einem elastischen Abstandshalter.
Claims (4)
- Ultraschallwandlereinrichtung mit einem eine Piezokeramikscheibe (2) und eine Anpaßschichtscheibe (1) aufweisenden Ultraschallwandler, der teilweise in einem Gehäuse (3) mittels eines Polymer-Schaumstoffs (5) eingebettet ist, dadurch gekennzeichnet, daß die Anpaßschichtscheibe (1) an ihrer Umfangsfläche durch ein Schaumstoff-Formteil (4) zentriert ist.
- Ultraschallwandlereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Schaumstoff-Formteil als Ring (4) ausgebildet ist, an dem die Umfangsfläche der Anpaßschichtscheibe (1) anliegt.
- Ultraschallwandlereinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Schaumstoff-Formteil (4) bündig mit der Ultraschallwellen-Abstrahlfläche der Anpaßschichtscheibe (1) abschließt.
- Ultraschallwandlereinrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß das Schaumstoff-Formteil (4) aus einem Schaumstoff mit geschlossenzelliger Struktur hergestellt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19809206 | 1998-03-04 | ||
DE19809206A DE19809206C2 (de) | 1998-03-04 | 1998-03-04 | Ultraschallwandlereinrichtung mit Zentrier-Formteil |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0940801A2 true EP0940801A2 (de) | 1999-09-08 |
EP0940801A3 EP0940801A3 (de) | 2001-06-20 |
EP0940801B1 EP0940801B1 (de) | 2004-01-21 |
Family
ID=7859664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99103792A Expired - Lifetime EP0940801B1 (de) | 1998-03-04 | 1999-02-26 | Ultraschallwandlereinrichtung mit Zentrier-Formteil |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0940801B1 (de) |
DE (2) | DE19809206C2 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020011387A1 (de) * | 2018-07-13 | 2020-01-16 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit |
WO2020025158A1 (de) * | 2018-08-03 | 2020-02-06 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit zur gefahrenerkennung für ein fahrzeug |
WO2020025156A1 (de) * | 2018-08-03 | 2020-02-06 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit für die materialerfassung |
WO2020025157A1 (de) * | 2018-08-03 | 2020-02-06 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit für die bereichsüberwachung |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19957125A1 (de) | 1999-11-26 | 2001-06-21 | Siemens Ag | Ultraschall-Wandler |
DE102022200918B3 (de) | 2022-01-27 | 2023-04-27 | Vitesco Technologies Germany Gmbh | Verfahren zum Herstellen eines Ultraschallsensors und Ultraschallsensor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3234896A1 (de) * | 1982-09-21 | 1984-03-22 | Siemens AG, 1000 Berlin und 8000 München | Ultraschallwandler |
DE3734070A1 (de) * | 1987-10-08 | 1989-04-20 | Siemens Ag | Syntaktischer daempfungsschaum |
DE3823477A1 (de) * | 1988-07-11 | 1990-01-18 | Siemens Ag | Verfahren zur fertigung von ultraschall-wandlern |
US5329682A (en) * | 1991-02-07 | 1994-07-19 | Siemens Aktiengesellschaft | Method for the production of ultrasound transformers |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3301848C2 (de) * | 1983-01-20 | 1984-11-08 | Siemens AG, 1000 Berlin und 8000 München | Ultraschallwandler |
DE4323134C1 (de) * | 1993-07-10 | 1994-06-16 | Pil Sensoren Gmbh | Ultraschallschwinger |
-
1998
- 1998-03-04 DE DE19809206A patent/DE19809206C2/de not_active Expired - Fee Related
-
1999
- 1999-02-26 EP EP99103792A patent/EP0940801B1/de not_active Expired - Lifetime
- 1999-02-26 DE DE59908332T patent/DE59908332D1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3234896A1 (de) * | 1982-09-21 | 1984-03-22 | Siemens AG, 1000 Berlin und 8000 München | Ultraschallwandler |
DE3734070A1 (de) * | 1987-10-08 | 1989-04-20 | Siemens Ag | Syntaktischer daempfungsschaum |
DE3823477A1 (de) * | 1988-07-11 | 1990-01-18 | Siemens Ag | Verfahren zur fertigung von ultraschall-wandlern |
US5329682A (en) * | 1991-02-07 | 1994-07-19 | Siemens Aktiengesellschaft | Method for the production of ultrasound transformers |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020011387A1 (de) * | 2018-07-13 | 2020-01-16 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit |
US11869479B2 (en) | 2018-07-13 | 2024-01-09 | Pepperl + Fuchs Se | 1D ultrasonic converter unit |
DE102018005540B4 (de) | 2018-07-13 | 2022-06-09 | Pepperl+Fuchs Ag | 1D-Ultraschallwandler-Einheit |
KR20210027398A (ko) * | 2018-07-13 | 2021-03-10 | 페퍼를 운트 푹스 에스이 | 1d 초음파 트랜스듀서 유닛 |
KR20210027399A (ko) * | 2018-08-03 | 2021-03-10 | 페퍼를 운트 푹스 에스이 | 차량의 위험 식별을 위한 1d 초음파 트랜스듀서 유닛 |
WO2020025157A1 (de) * | 2018-08-03 | 2020-02-06 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit für die bereichsüberwachung |
CN112533708A (zh) * | 2018-08-03 | 2021-03-19 | 倍加福欧洲股份公司 | 用于材料检测的一维超声换能器单元 |
CN112566731A (zh) * | 2018-08-03 | 2021-03-26 | 倍加福欧洲股份公司 | 用于区域监测的一维超声换能器单元 |
DE102018006127B4 (de) | 2018-08-03 | 2021-07-08 | Pepperl+Fuchs Ag | 1D-Ultraschallwandler-Einheit für die Materialerfassung |
JP2021532369A (ja) * | 2018-08-03 | 2021-11-25 | ペッパール プルス フクス エス・エーPepperl + Fuchs SE | 車両用の危険識別のための1d超音波変換器ユニット |
CN112533708B (zh) * | 2018-08-03 | 2022-02-22 | 倍加福欧洲股份公司 | 用于材料检测的一维超声换能器单元 |
CN112566731B (zh) * | 2018-08-03 | 2022-03-22 | 倍加福欧洲股份公司 | 用于区域监测的一维超声换能器单元 |
WO2020025156A1 (de) * | 2018-08-03 | 2020-02-06 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit für die materialerfassung |
US11808850B2 (en) | 2018-08-03 | 2023-11-07 | Pepperl + Fuchs Se | 1D ultrasonic transducer unit for hazard identification for a vehicle |
US11867805B2 (en) | 2018-08-03 | 2024-01-09 | Pepperl + Fuchs Se | 1D ultrasonic transducer unit for area monitoring |
WO2020025158A1 (de) * | 2018-08-03 | 2020-02-06 | Pepperl+Fuchs Ag | 1d-ultraschallwandler-einheit zur gefahrenerkennung für ein fahrzeug |
US11906293B2 (en) | 2018-08-03 | 2024-02-20 | Pepperl + Fuchs Se | 1D ultrasonic transducer unit for material detection |
Also Published As
Publication number | Publication date |
---|---|
DE19809206C2 (de) | 2001-02-15 |
DE19809206A1 (de) | 1999-09-23 |
DE59908332D1 (de) | 2004-02-26 |
EP0940801A3 (de) | 2001-06-20 |
EP0940801B1 (de) | 2004-01-21 |
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