WO1995007529A1 - Transducteur ultrasonore a adaptateur - Google Patents
Transducteur ultrasonore a adaptateur Download PDFInfo
- Publication number
- WO1995007529A1 WO1995007529A1 PCT/DE1994/001016 DE9401016W WO9507529A1 WO 1995007529 A1 WO1995007529 A1 WO 1995007529A1 DE 9401016 W DE9401016 W DE 9401016W WO 9507529 A1 WO9507529 A1 WO 9507529A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ultrasonic transducer
- adapter body
- annular groove
- pot
- transducer according
- Prior art date
Links
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
- G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
- G10K9/122—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using piezoelectric driving means
-
- 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
-
- 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
- G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Definitions
- the present invention relates to an ultrasonic transducer with an adapter body, for example in the form of a ⁇ / 4 adapter layer.
- a matching layer is necessary to adapt piezoelectric ultrasonic transducers to media such as air.
- one side of the piezoceramic transducer covered with electrodes is glued to a matching body. This creates the problem of contacting this electrode without significantly changing the adhesive joint, which affects the properties of the transducer.
- the pot transducers have to make high demands on the processing of the bottom of the pot so that the piezoelectric vibrator lies flush on the bottom of the pot.
- rejects can be made because the piezoceramic disk no longer lies exactly against the bottom of the pot.
- the Adhesive layer inserted thin connecting wires that connect the electrode of the piezo element at the adhesive point with a metal ring. This metal ring in turn must be connected to the connecting wire, which experience has also shown to be problematic.
- the present invention has for its object to provide an ultrasonic transducer in which the piezoceramic disk, when fully contacted, can be inserted into the adapter body in any insertion rotational position without the contacting point of the piezoceramic disk facing the adapter body ensuring that the piezoceramic disk sits flush on the transducer ⁇ pot bottom hampers.
- the object is achieved by an ultrasonic transducer according to claim 1.
- the recess consists of a concentric annular groove formed in the adapter body, which can accommodate the volume of the contact point in any rotational position of insertion of the piezoceramic disk.
- FIGS. 1 a, b and c show schematically the cross section of an RU converter
- an annular groove RN is introduced into the bottom of the cup-shaped adapter body T to remove the problems mentioned above, that of the solder joint KS, regardless of the rotational position between the piezoelectric Schwinger S and the adapter body T, the space required.
- a rounding of the edge between the pot base and the pot wall no longer has a disruptive effect because the edge of the piezoelectric vibrator S no longer lies directly on the pot base.
- the cup-shaped adapter body T is filled with a potting compound V in the exemplary embodiment shown. These should have sound absorbing properties. Materials such as Silicone rubber with lead oxide - or tungsten oxide - parts. In addition to silicone rubber, other materials that remain soft after being mixed with heavier particles can also be used.
- a concentric annular groove RN is let into the adapter body T, which is designed here in the form of a disk, to achieve the object.
- the annular groove is dimensioned such that the contacting point KS is accommodated independently of the rotational position of the piezoelectric vibrator S.
- Behind the bead W there is a second ring groove RN2 the dimensions of which are dimensioned such that there is a burr which the metal ring M may have its lower inner edge has to come to rest.
- the ring groove RN can be relatively narrow and flat in the case of thin connecting wires D arranged near the ring edge.
- Contacting is not limited to soldering. Further contact options are welding, bonding, gluing with conductive silver, gluing and contacting with conductive silver lacquer. Also stoving silver or a sputter layer, which around the
- the edge of the disc is pulled around can be used for contacting. Furthermore, thin wires inserted into the adhesive layer for contacting are possible.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
Un transducteur ultrasonore pourvu d'un adaptateur (T) comprend, du côté de l'adaptateur (T) tourné vers l'oscillateur piézo-électrique (S), une rainure annulaire concentrique (RN) de dimensions telles qu'elle peut recevoir le volume du point de contact (KS) entre le fil métallique de connexion (D) et l'oscillateur piézo-électrique (S).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4330745.0 | 1993-09-10 | ||
DE19934330745 DE4330745C1 (de) | 1993-09-10 | 1993-09-10 | Ultraschallwandler mit Anpaßkörper |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995007529A1 true WO1995007529A1 (fr) | 1995-03-16 |
Family
ID=6497392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1994/001016 WO1995007529A1 (fr) | 1993-09-10 | 1994-09-05 | Transducteur ultrasonore a adaptateur |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE4330745C1 (fr) |
WO (1) | WO1995007529A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011085872A3 (fr) * | 2010-01-18 | 2013-01-31 | Robert Bosch Gmbh | Transducteur ultrasonore destiné à être utilisé dans un milieu fluide |
WO2016184952A1 (fr) * | 2015-05-20 | 2016-11-24 | Valeo Schalter Und Sensoren Gmbh | Capteur à ultrasons pour un véhicule automobile, véhicule automobile ainsi que procédé de fabrication d'un capteur à ultrasons |
CN111312203A (zh) * | 2020-02-28 | 2020-06-19 | 清华大学 | 柔性声学超材料结构 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29611678U1 (de) * | 1996-07-04 | 1997-08-07 | Siemens AG, 80333 München | Schallwandler, insbesondere Ultraschallwandler |
DE19725717C2 (de) * | 1997-06-18 | 2001-08-02 | Hydrometer Gmbh | Ultraschallwandler für Flüssigkeitsdurchflussmesser |
DK172871B1 (da) * | 1997-08-22 | 1999-08-23 | Danfoss As | Ultralydstransducer |
DE19811982C5 (de) * | 1998-03-19 | 2011-02-03 | Microsonic Gesellschaft für Mikroelektronik und Ultraschalltechnik mbH | Ultraschall-Luftfederanordnung |
DE10216037A1 (de) | 2002-04-11 | 2003-10-23 | Endress & Hauser Gmbh & Co Kg | Schall-oder Ultraschallsensor |
DE10356114A1 (de) * | 2003-11-27 | 2005-06-23 | Endress + Hauser Flowtec Ag, Reinach | Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massendurchflusses eines Messmediums |
CN103776497B (zh) * | 2014-01-26 | 2017-09-01 | 哈尔滨工业大学(威海) | 一种流量计用超声波传感器 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2325266A1 (fr) * | 1975-09-17 | 1977-04-15 | Siemens Ag | Transducteur a ultrason |
EP0178346A1 (fr) * | 1984-02-21 | 1986-04-23 | NGK Spark Plug Co. Ltd. | Transducteur à ultrasons |
DE3823477A1 (de) * | 1988-07-11 | 1990-01-18 | Siemens Ag | Verfahren zur fertigung von ultraschall-wandlern |
DE3832947A1 (de) * | 1988-09-28 | 1990-03-29 | Siemens Ag | Ultraschall-wandler, insbesondere fuer luftmengenmesser |
DE3941933A1 (de) * | 1989-12-19 | 1991-06-20 | Siemens Ag | Ultraschallwandler fuer luftstroemungsmessung insbesondere zur luftmengenmessung bei verbrennungsmotoren |
EP0477575A1 (fr) * | 1990-09-25 | 1992-04-01 | Siemens Aktiengesellschaft | Convertisseur ultrasonique, en particulier pour la mesure de flux d'air et de gaz, et son procédé de fabrication |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH054339Y2 (fr) * | 1988-10-04 | 1993-02-03 |
-
1993
- 1993-09-10 DE DE19934330745 patent/DE4330745C1/de not_active Expired - Fee Related
-
1994
- 1994-09-05 WO PCT/DE1994/001016 patent/WO1995007529A1/fr active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2325266A1 (fr) * | 1975-09-17 | 1977-04-15 | Siemens Ag | Transducteur a ultrason |
EP0178346A1 (fr) * | 1984-02-21 | 1986-04-23 | NGK Spark Plug Co. Ltd. | Transducteur à ultrasons |
DE3823477A1 (de) * | 1988-07-11 | 1990-01-18 | Siemens Ag | Verfahren zur fertigung von ultraschall-wandlern |
DE3832947A1 (de) * | 1988-09-28 | 1990-03-29 | Siemens Ag | Ultraschall-wandler, insbesondere fuer luftmengenmesser |
DE3941933A1 (de) * | 1989-12-19 | 1991-06-20 | Siemens Ag | Ultraschallwandler fuer luftstroemungsmessung insbesondere zur luftmengenmessung bei verbrennungsmotoren |
EP0477575A1 (fr) * | 1990-09-25 | 1992-04-01 | Siemens Aktiengesellschaft | Convertisseur ultrasonique, en particulier pour la mesure de flux d'air et de gaz, et son procédé de fabrication |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011085872A3 (fr) * | 2010-01-18 | 2013-01-31 | Robert Bosch Gmbh | Transducteur ultrasonore destiné à être utilisé dans un milieu fluide |
US9097569B2 (en) | 2010-01-18 | 2015-08-04 | Robert Bosch Gmbh | Ultrasonic transducer for use in a fluid medium |
WO2016184952A1 (fr) * | 2015-05-20 | 2016-11-24 | Valeo Schalter Und Sensoren Gmbh | Capteur à ultrasons pour un véhicule automobile, véhicule automobile ainsi que procédé de fabrication d'un capteur à ultrasons |
CN111312203A (zh) * | 2020-02-28 | 2020-06-19 | 清华大学 | 柔性声学超材料结构 |
CN111312203B (zh) * | 2020-02-28 | 2021-03-12 | 清华大学 | 柔性声学超材料结构 |
Also Published As
Publication number | Publication date |
---|---|
DE4330745C1 (de) | 1995-04-27 |
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