WO2005031274A3 - Schall- oder ultraschallwandler - Google Patents

Schall- oder ultraschallwandler Download PDF

Info

Publication number
WO2005031274A3
WO2005031274A3 PCT/EP2004/010526 EP2004010526W WO2005031274A3 WO 2005031274 A3 WO2005031274 A3 WO 2005031274A3 EP 2004010526 W EP2004010526 W EP 2004010526W WO 2005031274 A3 WO2005031274 A3 WO 2005031274A3
Authority
WO
WIPO (PCT)
Prior art keywords
sonic
ultrasonic transducer
conditioning layer
elastic modulus
expansion coefficient
Prior art date
Application number
PCT/EP2004/010526
Other languages
English (en)
French (fr)
Other versions
WO2005031274A2 (de
Inventor
Manfred Eckert
Frank Volz
Original Assignee
Endress & Hauser Gmbh & Co Kg
Manfred Eckert
Frank Volz
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Endress & Hauser Gmbh & Co Kg, Manfred Eckert, Frank Volz filed Critical Endress & Hauser Gmbh & Co Kg
Priority to EP04765412A priority Critical patent/EP1664684B1/de
Priority to DE502004010778T priority patent/DE502004010778D1/de
Priority to US10/573,420 priority patent/US7411335B2/en
Priority to AT04765412T priority patent/ATE458181T1/de
Publication of WO2005031274A2 publication Critical patent/WO2005031274A2/de
Publication of WO2005031274A3 publication Critical patent/WO2005031274A3/de

Links

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

Die Erfindung bezieht sich auf einen Schall- oder Ultraschallwandler (1), der als Radialschwinger ausgestaltet ist. Um den Schall- oder Ultraschallwandler bei hohen Temperaturen einsetzen zu können, ist die Anpaßschicht (4) zwischen dem Radialschwinger und der Atmosphäre, in die die Ultraschallsignale ausgesendet werden, aus einem Material gefertigt ist, das eine Wärmeformfestigkeit bis zu einer Temperatur aufweist, die über der Temperatur am Einbauort des Schall- oder Ultraschallwandlers (1) liegt. Weiterhin ist die Anpaßschicht so gewählt, daß ihr materialspezifischer Ausdehnungskoeffizient größer ist als der Ausdehnungskoeffizient der Materialien der piezoelektrischen Einheit (2) und/oder des Koppelrings und daß Ihr E-Modul des Materials der Anpaßschicht (4) um mindestens eine Größenordnung geringer ist als der E-Modul der piezo-elektrischen Einheit (2) und/oder des Koppelrings (3).
PCT/EP2004/010526 2003-09-25 2004-09-20 Schall- oder ultraschallwandler WO2005031274A2 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04765412A EP1664684B1 (de) 2003-09-25 2004-09-20 Schall- oder ultraschallwandler
DE502004010778T DE502004010778D1 (de) 2003-09-25 2004-09-20 Schall- oder ultraschallwandler
US10/573,420 US7411335B2 (en) 2003-09-25 2004-09-20 Sonic or ultrasonic transducer
AT04765412T ATE458181T1 (de) 2003-09-25 2004-09-20 Schall- oder ultraschallwandler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344741A DE10344741A1 (de) 2003-09-25 2003-09-25 Schall- oder Ultraschallwandler
DE10344741.5 2003-09-25

Publications (2)

Publication Number Publication Date
WO2005031274A2 WO2005031274A2 (de) 2005-04-07
WO2005031274A3 true WO2005031274A3 (de) 2005-05-12

Family

ID=34306089

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/010526 WO2005031274A2 (de) 2003-09-25 2004-09-20 Schall- oder ultraschallwandler

Country Status (5)

Country Link
US (1) US7411335B2 (de)
EP (1) EP1664684B1 (de)
AT (1) ATE458181T1 (de)
DE (2) DE10344741A1 (de)
WO (1) WO2005031274A2 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7775110B2 (en) * 2006-09-22 2010-08-17 Denso Corporation Ultrasonic sensor
JP4635996B2 (ja) * 2006-09-26 2011-02-23 株式会社デンソー 超音波センサ
JP4835366B2 (ja) * 2006-10-04 2011-12-14 株式会社デンソー 超音波センサ
JP4857296B2 (ja) * 2008-03-07 2012-01-18 パナソニック株式会社 音響整合体
DE102008055123B3 (de) * 2008-12-23 2010-07-22 Robert Bosch Gmbh Ultraschallwandler zum Einsatz in einem fluiden Medium
DE102008055126A1 (de) 2008-12-23 2010-07-01 Robert Bosch Gmbh Ultraschallwandler zum Einsatz in einem fluiden Medium
DE102010024205A1 (de) * 2010-06-17 2011-12-22 Valeo Schalter Und Sensoren Gmbh Ultraschallsensor und Fahrzeug mit einem derartigen Ultraschallsensor
CN108605186B (zh) * 2016-06-09 2021-03-09 松下知识产权经营株式会社 层叠体、超声波收发器和超声波流量计
JP6032512B1 (ja) * 2016-06-09 2016-11-30 パナソニックＩｐマネジメント株式会社 積層体、超音波送受波器および超音波流量計
DE102021107559A1 (de) 2021-03-25 2022-09-29 Endress+Hauser Conducta Gmbh+Co. Kg Verfahren zur Qualitätsprüfung von Ultraschallwandlern

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1530347A (en) * 1975-09-17 1978-10-25 Siemens Ag Transducers
US5195373A (en) * 1991-04-17 1993-03-23 Southwest Research Institute Ultrasonic transducer for extreme temperature environments
US5583293A (en) * 1992-10-02 1996-12-10 Endress + Hauser Gmbh + Co. Sonic or ultrasonic transducer
US5664456A (en) * 1995-09-28 1997-09-09 Endress+Hauser Gmbh+Co. Ultrasonic transducer
US20020180316A1 (en) * 1999-12-17 2002-12-05 Linden Klaus Van Der Piezoelectric ultrasonic transducer comprising a housing and an insulating layer

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537788C3 (de) * 1975-08-25 1980-04-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Ultraschallwandler
DE3301848C2 (de) * 1983-01-20 1984-11-08 Siemens AG, 1000 Berlin und 8000 München Ultraschallwandler
DE3430161A1 (de) * 1984-08-16 1986-02-27 Siemens AG, 1000 Berlin und 8000 München Poroese anpassungsschicht in einem ultraschallapplikator
JPH06101879B2 (ja) * 1988-01-25 1994-12-12 株式会社村田製作所 空中超音波トランスジューサ
JP2599222B2 (ja) * 1990-04-25 1997-04-09 新田ゼラチン 株式会社 接着剤組成物
DE4311963C2 (de) * 1993-04-10 1996-10-24 Endress Hauser Gmbh Co Füllstandsmeßgerät
GB9513267D0 (en) * 1995-06-29 1995-09-06 Whitaker Corp Ultrasonic liquid level detector
DE19538696C2 (de) * 1995-10-17 1997-09-25 Endress Hauser Gmbh Co Anordnung zur Überwachung eines vorbestimmten Füllstands einer Flüssigkeit in einem Behälter
DE19820419A1 (de) * 1998-05-07 1999-11-18 Fraunhofer Ges Forschung Ultraschallwandler
EP0985916B1 (de) * 1998-09-09 2007-07-18 Endress + Hauser GmbH + Co. KG Vorrichtung zur Feststellung und/oder Überwachung eines vorbestimmten Füllstandes in einem Behälter
DE20303461U1 (de) * 2003-02-07 2003-07-24 Jaeger Frank Michael Vorrichtung zur Feststellung einer Phase oder/eines Phasengemisches

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1530347A (en) * 1975-09-17 1978-10-25 Siemens Ag Transducers
US5195373A (en) * 1991-04-17 1993-03-23 Southwest Research Institute Ultrasonic transducer for extreme temperature environments
US5583293A (en) * 1992-10-02 1996-12-10 Endress + Hauser Gmbh + Co. Sonic or ultrasonic transducer
US5664456A (en) * 1995-09-28 1997-09-09 Endress+Hauser Gmbh+Co. Ultrasonic transducer
US20020180316A1 (en) * 1999-12-17 2002-12-05 Linden Klaus Van Der Piezoelectric ultrasonic transducer comprising a housing and an insulating layer

Also Published As

Publication number Publication date
EP1664684A2 (de) 2006-06-07
DE10344741A1 (de) 2005-04-14
WO2005031274A2 (de) 2005-04-07
EP1664684B1 (de) 2010-02-17
ATE458181T1 (de) 2010-03-15
US20070273249A1 (en) 2007-11-29
DE502004010778D1 (de) 2010-04-01
US7411335B2 (en) 2008-08-12

Similar Documents

Publication Publication Date Title
WO2007143520A3 (en) Composite mechanical transducers and approaches therefor
WO2005031274A3 (de) Schall- oder ultraschallwandler
WO2004095883A8 (en) Ultrasonic energy system and method including a ceramic horn
WO2007014142A3 (en) Ultrasonic transducer devices and methods of manufacture
DE602006016001D1 (de) Verbundwerkstoffe aus metallischem massivglas und graphit
WO1998045677A3 (en) Transducer structure with differing coupling coefficients feature
ATE380698T1 (de) Seitenaufprallverstärkung
ATE333709T1 (de) Piezokeramischer biegewandler sowie verwendung des piezokeramischen biegewandlers
WO2005025057A3 (en) Electromechanical transducer and electrical device
CA2536344A1 (en) Chamber support for pyrolytic waste treatment system
WO2006089261A3 (en) On demand morphable automotive body moldings and surfaces
WO2003022929A1 (fr) Composition de resine ignifuge et thermoresistante et film adhesif en etant fait
WO2007129256A3 (en) Integrated temperature sensor
WO2007065038A3 (en) Low thermal expansion foundry media
WO2006091875A3 (en) Amorphous steel composites with enhanced strengths, elastic properties and ductilities
WO2005020434A3 (en) Shell type actuator
HUP9700904A2 (hu) Hang- vagy ultrahang-érzékelő hang- vagy ultrahanghullámok leadására és/vagy vételére
WO2006073829A3 (en) Bonding method for reducing stress in multilayered wafer
DE502005007156D1 (de) Verfahren zum Herstellen eines piezoelektrischen Bauteils
ATE308802T1 (de) Piezoelektrischer biegewandler
WO2008079710A3 (en) Composite materials having improved thermal performance
EP1780006A3 (de) Verbundkörper basierend auf Natur- und/oder Kunststein und Keramik
WO2005059472A3 (en) High sensitivity, low noise piezoelectric flexural sensing structure
Suhir On a paradoxical situation related to bonded joints: could stiffer mid-portions of a compliant attachment result in lower thermal stress?
EP1310641A3 (de) Hochtemperaturbeständiger Werkstoff

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004765412

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2004765412

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 10573420

Country of ref document: US

WWP Wipo information: published in national office

Ref document number: 10573420

Country of ref document: US