ATE307T1 - METHOD OF TRANSMITTING ULTRASONIC ENERGY INTO OR OUT OF A BODY AND FACING ULTRASONIC TRANSDUCER. - Google Patents

METHOD OF TRANSMITTING ULTRASONIC ENERGY INTO OR OUT OF A BODY AND FACING ULTRASONIC TRANSDUCER.

Info

Publication number
ATE307T1
ATE307T1 AT79101747T AT79101747T ATE307T1 AT E307 T1 ATE307 T1 AT E307T1 AT 79101747 T AT79101747 T AT 79101747T AT 79101747 T AT79101747 T AT 79101747T AT E307 T1 ATE307 T1 AT E307T1
Authority
AT
Austria
Prior art keywords
crystal
flat layer
layer
acoustical impedance
ultrasonic energy
Prior art date
Application number
AT79101747T
Other languages
German (de)
Inventor
Leroy Kopel
Original Assignee
Advanced Diagnostic Research Corporation
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25430388&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE307(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Advanced Diagnostic Research Corporation filed Critical Advanced Diagnostic Research Corporation
Application granted granted Critical
Publication of ATE307T1 publication Critical patent/ATE307T1/en

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
    • G10K11/02—Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

A piezoelectric crystal has a concave active surface and a high acoustical impedance. A flat layer of molded material having a low acoustical impedance faces the active surface of the crystal to form a space therebetween. An intermediate layer of molded material having an intermediate acoustical impedance fills the space between the crystal and the flat layer. Preferably, the intermediate material has a sonic velocity near that of water, and the flat layer has a uniform thickness of approximately 1/4 of the average wavelength of the ultrasonic energy emitted by the crystal. A housing supports the crystal, the flat layer, and the intermediate layer.
AT79101747T 1978-06-01 1979-06-01 METHOD OF TRANSMITTING ULTRASONIC ENERGY INTO OR OUT OF A BODY AND FACING ULTRASONIC TRANSDUCER. ATE307T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/911,524 US4184094A (en) 1978-06-01 1978-06-01 Coupling for a focused ultrasonic transducer
EP79101747A EP0005857B2 (en) 1978-06-01 1979-06-01 Method for transferring ultrasonic energy to or from an object and focused ultrasonic transducer

Publications (1)

Publication Number Publication Date
ATE307T1 true ATE307T1 (en) 1981-10-15

Family

ID=25430388

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79101747T ATE307T1 (en) 1978-06-01 1979-06-01 METHOD OF TRANSMITTING ULTRASONIC ENERGY INTO OR OUT OF A BODY AND FACING ULTRASONIC TRANSDUCER.

Country Status (6)

Country Link
US (1) US4184094A (en)
EP (1) EP0005857B2 (en)
JP (1) JPS556995A (en)
AT (1) ATE307T1 (en)
CA (1) CA1145451A (en)
DE (1) DE2960984D1 (en)

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DE8611844U1 (en) * 1986-04-30 1986-08-07 Siemens AG, 1000 Berlin und 8000 München Ultrasonic applicator with an adaptation layer
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US5127410A (en) * 1990-12-06 1992-07-07 Hewlett-Packard Company Ultrasound probe and lens assembly for use therein
US5303210A (en) * 1992-10-29 1994-04-12 The Charles Stark Draper Laboratory, Inc. Integrated resonant cavity acoustic transducer
US5305756A (en) * 1993-04-05 1994-04-26 Advanced Technology Laboratories, Inc. Volumetric ultrasonic imaging with diverging elevational ultrasound beams
US5465724A (en) * 1993-05-28 1995-11-14 Acuson Corporation Compact rotationally steerable ultrasound transducer
JP2927144B2 (en) * 1993-06-23 1999-07-28 松下電器産業株式会社 Ultrasonic transducer
US5743855A (en) * 1995-03-03 1998-04-28 Acuson Corporation Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof
US5438998A (en) * 1993-09-07 1995-08-08 Acuson Corporation Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof
US5792058A (en) * 1993-09-07 1998-08-11 Acuson Corporation Broadband phased array transducer with wide bandwidth, high sensitivity and reduced cross-talk and method for manufacture thereof
US5415175A (en) * 1993-09-07 1995-05-16 Acuson Corporation Broadband phased array transducer design with frequency controlled two dimension capability and methods for manufacture thereof
US5371483A (en) * 1993-12-20 1994-12-06 Bhardwaj; Mahesh C. High intensity guided ultrasound source
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US6217530B1 (en) * 1999-05-14 2001-04-17 University Of Washington Ultrasonic applicator for medical applications
US20030060736A1 (en) * 1999-05-14 2003-03-27 Martin Roy W. Lens-focused ultrasonic applicator for medical applications
US6666835B2 (en) * 1999-05-14 2003-12-23 University Of Washington Self-cooled ultrasonic applicator for medical applications
US6222304B1 (en) * 1999-07-28 2001-04-24 The Charles Stark Draper Laboratory Micro-shell transducer
US6936008B2 (en) * 1999-08-20 2005-08-30 Zonare Medical Systems, Inc. Ultrasound system with cableless coupling assembly
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US7360417B2 (en) * 2005-01-10 2008-04-22 Gems Sensors, Inc. Fluid level detector
DE102008055126A1 (en) * 2008-12-23 2010-07-01 Robert Bosch Gmbh Ultrasonic transducer for use in a fluid medium
US7703337B1 (en) * 2009-02-27 2010-04-27 Murray F Feller Clamping arrangements for a transducer assembly having a piezoelectric element within a foam body
WO2013116258A1 (en) * 2012-01-30 2013-08-08 Piezotech, Llc Pulse-echo acoustic transducer
US9808830B2 (en) * 2013-12-27 2017-11-07 General Electric Company Ultrasound transducer and ultrasound imaging system with a variable thickness dematching layer
GB2526566A (en) * 2014-05-28 2015-12-02 Skf Ab Couplant and arrangement of couplant, transducer, and construction component
US10072963B1 (en) * 2014-07-11 2018-09-11 Nick V. Solokhin Ultrasonic volume-sensing transducer instrument with concave transceiver element

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Also Published As

Publication number Publication date
EP0005857B2 (en) 1988-06-08
EP0005857A1 (en) 1979-12-12
JPS556995A (en) 1980-01-18
US4184094A (en) 1980-01-15
DE2960984D1 (en) 1981-12-24
CA1145451A (en) 1983-04-26
EP0005857B1 (en) 1981-10-14

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UEP Publication of translation of european patent specification