EP0100711A3 - Half wave transducer using an active piezo-electric polymer element - Google Patents

Half wave transducer using an active piezo-electric polymer element Download PDF

Info

Publication number
EP0100711A3
EP0100711A3 EP83401485A EP83401485A EP0100711A3 EP 0100711 A3 EP0100711 A3 EP 0100711A3 EP 83401485 A EP83401485 A EP 83401485A EP 83401485 A EP83401485 A EP 83401485A EP 0100711 A3 EP0100711 A3 EP 0100711A3
Authority
EP
European Patent Office
Prior art keywords
half wave
wave transducer
polymer element
electric polymer
sheet
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Withdrawn
Application number
EP83401485A
Other languages
German (de)
French (fr)
Other versions
EP0100711A2 (en
Inventor
Hoang Giang Nguyen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of EP0100711A2 publication Critical patent/EP0100711A2/en
Publication of EP0100711A3 publication Critical patent/EP0100711A3/en
Withdrawn legal-status Critical Current

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
    • B06B1/0688—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 with foil-type piezoelectric elements, e.g. PVDF
    • B06B1/0692—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 with foil-type piezoelectric elements, e.g. PVDF with a continuous electrode on one side and a plurality of electrodes on the other side
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/80—Piezoelectric polymers, e.g. PVDF

Landscapes

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

Abstract

L'invention se rapporte aux transducteurs électroméca­ niques de type demi-onde dans lesquels l'élément actif est une feuille de polymère piézoélectrique (6) encadrée par des électrodes (9, 4, 5, 7, 8). The invention relates to electromechanical transducers half-wave types in which the active element is a piezoelectric polymer sheet (6) framed by electrodes (9, 4, 5, 7, 8).

L'invention a pour objet un transducteur dans lequel la structure vibrante comporte, faisant corps avec la feuille active de polymère piézoélectrique (6), au moins une feuille passive (3) servant de support aux électrodes (4, 5, 7, 8). The subject of the invention is a transducer in which the vibrating structure comprises, integral with the sheet active piezoelectric polymer (6), at least one sheet passive (3) serving as a support for the electrodes (4, 5, 7, 8).

L'invention s'applique notamment à l'excitation et à la détection de rayonnements ultrasonores dans les tissus biologiques. The invention is particularly applicable to excitation and detection of ultrasonic radiation in tissues biological.

EP83401485A 1982-07-30 1983-07-19 Half wave transducer using an active piezo-electric polymer element Withdrawn EP0100711A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8213357A FR2531298B1 (en) 1982-07-30 1982-07-30 HALF-WAVE TYPE TRANSDUCER WITH PIEZOELECTRIC POLYMER ELEMENT
FR8213357 1982-07-30

Publications (2)

Publication Number Publication Date
EP0100711A2 EP0100711A2 (en) 1984-02-15
EP0100711A3 true EP0100711A3 (en) 1984-11-14

Family

ID=9276496

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83401485A Withdrawn EP0100711A3 (en) 1982-07-30 1983-07-19 Half wave transducer using an active piezo-electric polymer element

Country Status (3)

Country Link
US (1) US4473769A (en)
EP (1) EP0100711A3 (en)
FR (1) FR2531298B1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5999900A (en) * 1982-11-29 1984-06-08 Toshiba Corp Ultrasonic wave probe
JPS6086999A (en) * 1983-10-19 1985-05-16 Hitachi Ltd Ultrasonic probe
JPS60140153A (en) * 1983-12-28 1985-07-25 Toshiba Corp Preparation of ultrasonic probe
EP0166180B1 (en) * 1984-05-30 1989-02-01 Siemens Aktiengesellschaft Hydrophone
US4964302A (en) * 1984-09-25 1990-10-23 Grahn Allen R Tactile sensor
EP0176030B1 (en) * 1984-09-26 1992-04-29 TERUMO KABUSHIKI KAISHA trading as TERUMO CORPORATION Ultrasonic transducer and method of manufacturing same
US4604543A (en) * 1984-11-29 1986-08-05 Hitachi, Ltd. Multi-element ultrasonic transducer
JPS61144565A (en) * 1984-12-18 1986-07-02 Toshiba Corp High-polymer piezo-electric type ultrasonic probe
US4833659A (en) * 1984-12-27 1989-05-23 Westinghouse Electric Corp. Sonar apparatus
DE3611669A1 (en) * 1985-04-10 1986-10-16 Hitachi Medical Corp., Tokio/Tokyo ULTRASONIC CONVERTER
JPS62150610A (en) * 1985-12-25 1987-07-04 株式会社日立製作所 Input device
US4908543A (en) * 1988-06-30 1990-03-13 Litton Systems, Inc. Acoustic transducer
US5160870A (en) * 1990-06-25 1992-11-03 Carson Paul L Ultrasonic image sensing array and method
NZ243294A (en) * 1991-06-25 1995-04-27 Commw Scient Ind Res Org Time of flight of acoustic wave packets through fluid: reduction of higher order acoustic mode effects
US6432050B1 (en) * 1997-12-30 2002-08-13 Remon Medical Technologies Ltd. Implantable acoustic bio-sensing system and method
CN100566152C (en) * 2002-09-12 2009-12-02 Nxp股份有限公司 Has the bulk acoustic wave resonator that suppresses the device of passband ripple in the bulk accoustic wave filter
BE1015150A3 (en) * 2002-10-21 2004-10-05 Sonitron Nv Improved transducer
US20070130771A1 (en) * 2005-12-12 2007-06-14 Kimberly-Clark Worldwide, Inc. Methods for producing ultrasonic waveguides having improved amplification
US8033173B2 (en) * 2005-12-12 2011-10-11 Kimberly-Clark Worldwide, Inc. Amplifying ultrasonic waveguides
DE102005061343B4 (en) 2005-12-21 2010-11-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ultrasonic transducer with self-supporting matching layer and method of manufacture
DE202012004305U1 (en) * 2012-04-27 2012-05-25 Texmag Gmbh Vertriebsgesellschaft Device for detecting an edge of a material web

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117074A (en) * 1976-08-30 1978-09-26 Tiersten Harry F Monolithic mosaic piezoelectric transducer utilizing trapped energy modes
EP0015886A1 (en) * 1979-03-13 1980-09-17 Toray Industries, Inc. An improved electro-acoustic transducer element
FR2503517A1 (en) * 1981-04-06 1982-10-08 Thomson Csf Piezoelectric transducer for ultrasonic waves - has transducer with polymeric piezoelectric element of higher acoustic impedance than reflector and half wavelength thickness

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912830A (en) * 1971-10-13 1975-10-14 Kureha Chemical Ind Co Ltd Method of producing a piezoelectric or pyroelectric element
JPS599000B2 (en) * 1979-02-13 1984-02-28 東レ株式会社 ultrasonic transducer
US4383194A (en) * 1979-05-01 1983-05-10 Toray Industries, Inc. Electro-acoustic transducer element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117074A (en) * 1976-08-30 1978-09-26 Tiersten Harry F Monolithic mosaic piezoelectric transducer utilizing trapped energy modes
EP0015886A1 (en) * 1979-03-13 1980-09-17 Toray Industries, Inc. An improved electro-acoustic transducer element
FR2503517A1 (en) * 1981-04-06 1982-10-08 Thomson Csf Piezoelectric transducer for ultrasonic waves - has transducer with polymeric piezoelectric element of higher acoustic impedance than reflector and half wavelength thickness

Also Published As

Publication number Publication date
FR2531298A1 (en) 1984-02-03
EP0100711A2 (en) 1984-02-15
FR2531298B1 (en) 1986-06-27
US4473769A (en) 1984-09-25

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): DE GB NL SE

PUAL Search report despatched

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RHK1 Main classification (correction)

Ipc: G10K 11/34

AK Designated contracting states

Designated state(s): DE GB NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850715

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NGUYEN, HOANG GIANG