EP0210358A3 - Acoustic focussing device - Google Patents

Acoustic focussing device Download PDF

Info

Publication number
EP0210358A3
EP0210358A3 EP86106659A EP86106659A EP0210358A3 EP 0210358 A3 EP0210358 A3 EP 0210358A3 EP 86106659 A EP86106659 A EP 86106659A EP 86106659 A EP86106659 A EP 86106659A EP 0210358 A3 EP0210358 A3 EP 0210358A3
Authority
EP
European Patent Office
Prior art keywords
acoustic
focusing
normal
object region
acoustic wavefield
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.)
Granted
Application number
EP86106659A
Other languages
German (de)
Other versions
EP0210358A2 (en
EP0210358B1 (en
Inventor
Abdulla Dr. Atalar
Hayrettin Dr. Koymen
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.)
Leica Microsystems Holdings GmbH
Original Assignee
Ernst Leitz Wetzlar GmbH
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 Ernst Leitz Wetzlar GmbH filed Critical Ernst Leitz Wetzlar GmbH
Priority to AT86106659T priority Critical patent/ATE77708T1/en
Publication of EP0210358A2 publication Critical patent/EP0210358A2/en
Publication of EP0210358A3 publication Critical patent/EP0210358A3/en
Application granted granted Critical
Publication of EP0210358B1 publication Critical patent/EP0210358B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
    • 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
    • G10K11/36—Devices for manipulating acoustic surface waves
    • 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
    • G10K15/00—Acoustics not otherwise provided for

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Surgical Instruments (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)

Abstract

An acoustic lens arrangement having at least one transducer for the generation and/or for the reception of a plane acoustic wavefield. The arrangement includes a focusing surface for focusing the acoustic wavefield in an object region and at least one medium for the low-loss transmission of the acoustic wavefield between a transducer, the focusing surface and the object region to be investigated. The longitudinal axis of the focusing surface is inclined relative to the direction of the normal to the acoustic wavefield in such a manner that when the longitudinal axis is positioned normal to the surface of the object region, the acoustic beams incident thereon form a critical angle theta R with the normal to the surface of the object.
EP86106659A 1985-06-24 1986-05-14 Acoustic focussing device Expired - Lifetime EP0210358B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86106659T ATE77708T1 (en) 1985-06-24 1986-05-14 ACOUSTIC FOCUSING ARRANGEMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853522491 DE3522491A1 (en) 1985-06-24 1985-06-24 ACOUSTIC LENS ARRANGEMENT
DE3522491 1985-06-24

Publications (3)

Publication Number Publication Date
EP0210358A2 EP0210358A2 (en) 1987-02-04
EP0210358A3 true EP0210358A3 (en) 1989-03-29
EP0210358B1 EP0210358B1 (en) 1992-06-24

Family

ID=6273994

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86106659A Expired - Lifetime EP0210358B1 (en) 1985-06-24 1986-05-14 Acoustic focussing device

Country Status (5)

Country Link
US (1) US4779241A (en)
EP (1) EP0210358B1 (en)
JP (1) JPS6255556A (en)
AT (1) ATE77708T1 (en)
DE (2) DE3522491A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3931048A1 (en) * 1989-09-16 1991-04-11 Leica Industrieverwaltung TAPERED ULTRASONIC DEFLECTING ELEMENT
JP2551639Y2 (en) * 1992-01-14 1997-10-27 ダイキン工業株式会社 Air conditioner
US6327538B1 (en) * 1998-02-17 2001-12-04 Halliburton Energy Services, Inc Method and apparatus for evaluating stoneley waves, and for determining formation parameters in response thereto
WO1999044757A1 (en) * 1998-03-03 1999-09-10 Sensotech Ltd. Ultrasonic transducer
TW490559B (en) * 1999-07-30 2002-06-11 Hitachi Construction Machinery Ultrasonic inspection apparatus and ultrasonic detector
KR100548076B1 (en) * 2002-04-25 2006-02-02 학교법인 포항공과대학교 Sound Focus Speaker of Gas-filled Sound Lens Attachment Type
DE102006003649B4 (en) * 2006-01-26 2009-03-19 Gitis, Mihail, Prof. Dr.Dr. Method and device for monitoring the quality of technical one-component and multi-component fluids by means of ultrasonic on-line measurements of their viscosity, density, compressibility and bulk viscosity
JP4902508B2 (en) * 2007-12-03 2012-03-21 日本電信電話株式会社 Component concentration measuring apparatus and component concentration measuring apparatus control method
US8616329B1 (en) 2012-10-30 2013-12-31 The United States Of America As Represented By The Secretary Of The Air Force Air coupled acoustic aperiodic flat lens
RU2618600C1 (en) * 2016-02-09 2017-05-04 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный университет геосистем и технологий" (СГУГиТ) Acoustical lens
JP7173931B2 (en) * 2019-06-07 2022-11-16 日立Ｇｅニュークリア・エナジー株式会社 ultrasonic inspection equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028933A (en) * 1974-02-15 1977-06-14 The Board Of Trustees Of Leland Stanford Junior University Acoustic microscope
EP0155504A2 (en) * 1984-03-17 1985-09-25 Leica Industrieverwaltung GmbH Method for the representation of elastic parameters in object surfaces

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2611445A (en) * 1948-01-29 1952-09-23 Stromberg Carlson Co Echo ranging system
US3159023A (en) * 1957-10-28 1964-12-01 Budd Co Ultrasonic testing apparatus
US3028752A (en) * 1959-06-02 1962-04-10 Curtiss Wright Corp Ultrasonic testing apparatus
US3389372A (en) * 1965-06-23 1968-06-18 Smiths Industries Ltd Echo-ranging apparatus
US4332016A (en) * 1979-01-26 1982-05-25 A/S Tomra Systems Method, apparatus and transducer for measurement of dimensions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028933A (en) * 1974-02-15 1977-06-14 The Board Of Trustees Of Leland Stanford Junior University Acoustic microscope
EP0155504A2 (en) * 1984-03-17 1985-09-25 Leica Industrieverwaltung GmbH Method for the representation of elastic parameters in object surfaces

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
APPLIED PHYSICS LETTERS, Band 42, Nr. 5, 1. März 1983, Seiten 412-413, American Institute of Physics, New York, US; I.R. SMITH et al.: "Confocal surface acoustic wave microscopy" *
JOURNAL OF APPLIED PHYSICS, Band 55, Nr. 1, 1. Januar 1984, Seiten 75-79, American Institute of Physics, New York, US; B. NONGAILLARD et al.: "A new focusing method for nondestructive evaluation by surface acoustic wave" *

Also Published As

Publication number Publication date
DE3522491A1 (en) 1987-01-02
JPS6255556A (en) 1987-03-11
EP0210358A2 (en) 1987-02-04
JPH0529064B2 (en) 1993-04-28
ATE77708T1 (en) 1992-07-15
DE3685779D1 (en) 1992-07-30
EP0210358B1 (en) 1992-06-24
US4779241A (en) 1988-10-18

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