CA2017382A1 - Transducteur acoustique - Google Patents

Transducteur acoustique

Info

Publication number
CA2017382A1
CA2017382A1 CA 2017382 CA2017382A CA2017382A1 CA 2017382 A1 CA2017382 A1 CA 2017382A1 CA 2017382 CA2017382 CA 2017382 CA 2017382 A CA2017382 A CA 2017382A CA 2017382 A1 CA2017382 A1 CA 2017382A1
Authority
CA
Canada
Prior art keywords
piezoelectric
transducer
aperture
piezoelectric material
distribution
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.)
Abandoned
Application number
CA 2017382
Other languages
English (en)
Inventor
Gordon Hayward
Victor J. Murray
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.)
BAE Systems Electronics Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2017382A1 publication Critical patent/CA2017382A1/fr
Abandoned 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
    • B06B1/0607—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 multiple elements
    • B06B1/0622—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 multiple elements on one surface
    • B06B1/0629—Square array

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
CA 2017382 1989-06-02 1990-05-23 Transducteur acoustique Abandoned CA2017382A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898912782A GB8912782D0 (en) 1989-06-02 1989-06-02 An acoustic transducer
GB8912782.3 1989-06-02

Publications (1)

Publication Number Publication Date
CA2017382A1 true CA2017382A1 (fr) 1990-12-02

Family

ID=10657817

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2017382 Abandoned CA2017382A1 (fr) 1989-06-02 1990-05-23 Transducteur acoustique

Country Status (4)

Country Link
EP (1) EP0401027A3 (fr)
JP (1) JPH03113999A (fr)
CA (1) CA2017382A1 (fr)
GB (2) GB8912782D0 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5371717A (en) * 1993-06-15 1994-12-06 Hewlett-Packard Company Microgrooves for apodization and focussing of wideband clinical ultrasonic transducers
US5465725A (en) * 1993-06-15 1995-11-14 Hewlett Packard Company Ultrasonic probe
US5434827A (en) * 1993-06-15 1995-07-18 Hewlett-Packard Company Matching layer for front acoustic impedance matching of clinical ultrasonic tranducers
US5553035A (en) * 1993-06-15 1996-09-03 Hewlett-Packard Company Method of forming integral transducer and impedance matching layers
US5460181A (en) * 1994-10-06 1995-10-24 Hewlett Packard Co. Ultrasonic transducer for three dimensional imaging
US5423319A (en) * 1994-06-15 1995-06-13 Hewlett-Packard Company Integrated impedance matching layer to acoustic boundary problems for clinical ultrasonic transducers
US5546946A (en) * 1994-06-24 1996-08-20 Advanced Technology Laboratories, Inc. Ultrasonic diagnostic transducer array with elevation focus
ATE211571T1 (de) * 1994-06-24 2002-01-15 Advanced Tech Lab Diagnoseultraschallwandleranordnung mit elevationsfokus
JP4413568B2 (ja) * 2003-09-19 2010-02-10 パナソニック株式会社 超音波探触子
DE102006015493B4 (de) * 2006-04-03 2010-12-23 Atlas Elektronik Gmbh Elektroakustischer Wandler
IT1398262B1 (it) * 2010-02-23 2013-02-22 Esaote Spa Sonda ad ultrasuoni.
FR2973550B1 (fr) * 2011-03-30 2015-12-04 Edap Tms France Procede et appareil de generation d'ondes ultrasonores focalisees a modulation de surface
EP2796209B1 (fr) 2013-04-25 2020-06-17 Canon Kabushiki Kaisha Transducteur capacitif et son procédé de fabrication
JP6238556B2 (ja) 2013-04-25 2017-11-29 キヤノン株式会社 被検体情報取得装置およびその制御方法、ならびに探触子
EP2796210B1 (fr) 2013-04-25 2016-11-30 Canon Kabushiki Kaisha Transducteur capacitif et son procédé de fabrication

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2006434B (en) * 1977-10-20 1982-03-03 Rca Corp Switchable depth of focus pulse-echo ultra-sonic imaging display system
GB2095951A (en) * 1981-02-19 1982-10-06 Nat Res Dev Transducers of improved resolution and systems for the transmission and reception of radiation
US4460841A (en) * 1982-02-16 1984-07-17 General Electric Company Ultrasonic transducer shading
US4518889A (en) * 1982-09-22 1985-05-21 North American Philips Corporation Piezoelectric apodized ultrasound transducers
US4514247A (en) * 1983-08-15 1985-04-30 North American Philips Corporation Method for fabricating composite transducers
DK212586A (da) * 1986-05-07 1987-11-08 Brueel & Kjaer As Fremgangsmaade til fremstilling af en ultralydtransducer

Also Published As

Publication number Publication date
JPH03113999A (ja) 1991-05-15
EP0401027A3 (fr) 1992-01-08
GB8912782D0 (en) 1989-07-19
EP0401027A2 (fr) 1990-12-05
GB9012171D0 (en) 1990-07-18
GB2232323A (en) 1990-12-05

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Legal Events

Date Code Title Description
FZDE Dead