JPS5357090A - Variable focus ultrasonic transducer - Google Patents

Variable focus ultrasonic transducer

Info

Publication number
JPS5357090A
JPS5357090A JP4523077A JP4523077A JPS5357090A JP S5357090 A JPS5357090 A JP S5357090A JP 4523077 A JP4523077 A JP 4523077A JP 4523077 A JP4523077 A JP 4523077A JP S5357090 A JPS5357090 A JP S5357090A
Authority
JP
Japan
Prior art keywords
ultrasonic transducer
variable focus
focus ultrasonic
variable
transducer
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.)
Pending
Application number
JP4523077A
Other languages
Japanese (ja)
Inventor
Shiepaado Guriin Fuiritsupu
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.)
SRI International Inc
Original Assignee
Stanford Research Institute
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 Stanford Research Institute filed Critical Stanford Research Institute
Publication of JPS5357090A publication Critical patent/JPS5357090A/en
Pending 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
    • B06B1/0625—Annular array
    • 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
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/32—Sound-focusing or directing, e.g. scanning characterised by the shape of the source

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP4523077A 1976-11-01 1977-04-21 Variable focus ultrasonic transducer Pending JPS5357090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73770476A 1976-11-01 1976-11-01

Publications (1)

Publication Number Publication Date
JPS5357090A true JPS5357090A (en) 1978-05-24

Family

ID=24964959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4523077A Pending JPS5357090A (en) 1976-11-01 1977-04-21 Variable focus ultrasonic transducer

Country Status (5)

Country Link
JP (1) JPS5357090A (en)
DE (1) DE2712341A1 (en)
FR (1) FR2369768A1 (en)
GB (1) GB1554349A (en)
NL (1) NL7712029A (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391281A (en) * 1977-01-06 1983-07-05 Sri International Ultrasonic transducer system and method
US4227417A (en) * 1977-06-13 1980-10-14 New York Institute Of Technology Dynamic focusing apparatus and method
JPS5584154A (en) * 1978-12-19 1980-06-25 Matsushita Electric Ind Co Ltd Ultrasoniccwave diagnosis device
US4242911A (en) * 1979-02-01 1981-01-06 Mediscan, Inc. Ultrasonic medical diagnostic apparatus and method
US4414482A (en) * 1981-05-20 1983-11-08 Siemens Gammasonics, Inc. Non-resonant ultrasonic transducer array for a phased array imaging system using1/4 λ piezo elements
EP0068961A3 (en) * 1981-06-26 1983-02-02 Thomson-Csf Apparatus for the local heating of biological tissue
FR2523451A2 (en) * 1982-03-19 1983-09-23 Thomson Csf Ultrasonic heating appts. for treatment of deep biological tissue - has piezoelectric plate divided into annular radiation zones of equal width divided by grooves
US4534221A (en) * 1982-09-27 1985-08-13 Technicare Corporation Ultrasonic diagnostic imaging systems for varying depths of field
US5143073A (en) 1983-12-14 1992-09-01 Edap International, S.A. Wave apparatus system
USRE33590E (en) 1983-12-14 1991-05-21 Edap International, S.A. Method for examining, localizing and treating with ultrasound
DE3441563A1 (en) * 1984-11-14 1985-05-30 Michael Dipl.-Phys. 5600 Wuppertal Platte Combined ultrasound transducer consisting of ceramic and highly polymerised piezoelectric materials
DE3510341A1 (en) * 1985-03-22 1986-10-02 Richard Wolf Gmbh, 7134 Knittlingen SOUND TRANSMITTER FOR GENERATING ACOUSTIC IMPULSES
FR2580079A1 (en) * 1985-04-05 1986-10-10 Edap Ultrasonic echographic device incorporating a probe with adjustable focal length and means of obtaining a large depth of field with a high resolving power
DE3732131A1 (en) * 1987-09-24 1989-04-06 Wolf Gmbh Richard FOCUSING ULTRASONIC transducer
DE3833234C2 (en) * 1988-09-30 1995-03-16 Wolfgang Kessler Procedure for calibrating or testing a piezoceramic transducer
JPH02234600A (en) * 1989-03-07 1990-09-17 Mitsubishi Mining & Cement Co Ltd Piezoelectric conversion element
JP2745147B2 (en) * 1989-03-27 1998-04-28 三菱マテリアル 株式会社 Piezoelectric transducer
US5158085A (en) * 1989-09-29 1992-10-27 Richard Wolf Gmbh Lithotripsy ultrasound locating device
GB2250658A (en) * 1990-12-07 1992-06-10 Canon Res Ct Europe Ltd Loudspeaker
DE102008005971A1 (en) * 2008-01-24 2009-07-30 Ge Inspection Technologies Gmbh Apparatus and method for non-destructive testing of a test specimen by means of ultrasonic TOFD technique
DE102008028200B4 (en) 2008-06-12 2013-01-31 Karlsruher Institut für Technologie Ultrasonic transducer with variable focus adjustment
DE102015209234A1 (en) * 2015-05-20 2016-11-24 Robert Bosch Gmbh Device for emitting and / or receiving acoustic signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3474402A (en) * 1968-05-06 1969-10-21 Us Navy Variable focus electroacoustic transducer
AU483477B2 (en) * 1972-06-08 1977-05-18 Commonwealth Of Australia, The Wide aperture ultrasonic array
CA1201197A (en) * 1975-09-15 1986-02-25 Commonwealth Of Australia (The) Variable focus transducer

Also Published As

Publication number Publication date
GB1554349A (en) 1979-10-17
DE2712341A1 (en) 1978-05-03
NL7712029A (en) 1978-05-03
FR2369768A1 (en) 1978-05-26

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