FR2451692A1 - Appareil et procede permettant de supprimer le mode masse/ressort dans un transducteur de formation d'image acoustique - Google Patents

Appareil et procede permettant de supprimer le mode masse/ressort dans un transducteur de formation d'image acoustique

Info

Publication number
FR2451692A1
FR2451692A1 FR7931441A FR7931441A FR2451692A1 FR 2451692 A1 FR2451692 A1 FR 2451692A1 FR 7931441 A FR7931441 A FR 7931441A FR 7931441 A FR7931441 A FR 7931441A FR 2451692 A1 FR2451692 A1 FR 2451692A1
Authority
FR
France
Prior art keywords
transducer
acoustic image
image transducer
spring mode
mass
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Withdrawn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
FR7931441A
Other languages
English (en)
French (fr)
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of FR2451692A1 publication Critical patent/FR2451692A1/fr
Withdrawn legal-status Critical Current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
    • G10K11/002—Devices for damping, suppressing, obstructing or conducting sound in acoustic devices
    • 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
    • B06B1/064—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 with multiple active layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
FR7931441A 1979-03-12 1979-12-21 Appareil et procede permettant de supprimer le mode masse/ressort dans un transducteur de formation d'image acoustique Withdrawn FR2451692A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/020,007 US4240003A (en) 1979-03-12 1979-03-12 Apparatus and method for suppressing mass/spring mode in acoustic imaging transducers

Publications (1)

Publication Number Publication Date
FR2451692A1 true FR2451692A1 (fr) 1980-10-10

Family

ID=21796250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7931441A Withdrawn FR2451692A1 (fr) 1979-03-12 1979-12-21 Appareil et procede permettant de supprimer le mode masse/ressort dans un transducteur de formation d'image acoustique

Country Status (5)

Country Link
US (1) US4240003A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS55123299A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2949930A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2451692A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB2044582B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694339A3 (en) * 1994-07-27 1997-03-12 Hewlett Packard Co Ultrasonic transducer

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347593A (en) * 1979-12-07 1982-08-31 The United States Of America As Represented By The Secretary Of The Navy Piezoceramic tubular element with zero end displacement
US4382201A (en) * 1981-04-27 1983-05-03 General Electric Company Ultrasonic transducer and process to obtain high acoustic attenuation in the backing
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
US4479069A (en) * 1981-11-12 1984-10-23 Hewlett-Packard Company Lead attachment for an acoustic transducer
US4446395A (en) * 1981-12-30 1984-05-01 Technicare Corporation Short ring down, ultrasonic transducer suitable for medical applications
EP0128049B1 (en) * 1983-06-07 1990-09-12 Matsushita Electric Industrial Co., Ltd. Ultrasonic probe having a backing member
US4633119A (en) * 1984-07-02 1986-12-30 Gould Inc. Broadband multi-resonant longitudinal vibrator transducer
US4565940A (en) * 1984-08-14 1986-01-21 Massachusetts Institute Of Technology Method and apparatus using a piezoelectric film for active control of vibrations
JPS6412711A (en) * 1987-07-07 1989-01-17 Murata Manufacturing Co Chip type resonator
FR2634089B1 (fr) * 1988-07-08 1990-10-05 Labo Electronique Physique Transducteur ultrasonore a sensibilite amelioree
US5060653A (en) * 1989-05-16 1991-10-29 Hewlett-Packard Company Ultrasonic sensor with starved dilatational modes
JP3015481B2 (ja) * 1990-03-28 2000-03-06 株式会社東芝 超音波プローブ・システム
US5267221A (en) * 1992-02-13 1993-11-30 Hewlett-Packard Company Backing for acoustic transducer array
US5410205A (en) * 1993-02-11 1995-04-25 Hewlett-Packard Company Ultrasonic transducer having two or more resonance frequencies
US5381067A (en) * 1993-03-10 1995-01-10 Hewlett-Packard Company Electrical impedance normalization for an ultrasonic transducer array
US5598051A (en) * 1994-11-21 1997-01-28 General Electric Company Bilayer ultrasonic transducer having reduced total electrical impedance
US5686777A (en) * 1995-09-21 1997-11-11 New Jersey Institute Of Technology High accuracy piezoelectric positioning device
US5957851A (en) * 1996-06-10 1999-09-28 Acuson Corporation Extended bandwidth ultrasonic transducer
US6416478B1 (en) 1998-05-05 2002-07-09 Acuson Corporation Extended bandwidth ultrasonic transducer and method
US6437484B1 (en) * 1998-12-24 2002-08-20 Kyocera Corporation Piezoelectric resonator
US6409667B1 (en) 2000-02-23 2002-06-25 Acuson Corporation Medical diagnostic ultrasound transducer system and method for harmonic imaging
GB2425179A (en) * 2005-04-14 2006-10-18 Warwickshire Mfg Group Assessing the quality of rivets by evaluating the complex valued electrical impedance of a piezoelectric ultrasonic transducer
US8467169B2 (en) 2007-03-22 2013-06-18 Research In Motion Rf, Inc. Capacitors adapted for acoustic resonance cancellation
US7936553B2 (en) * 2007-03-22 2011-05-03 Paratek Microwave, Inc. Capacitors adapted for acoustic resonance cancellation
US7869187B2 (en) * 2007-09-04 2011-01-11 Paratek Microwave, Inc. Acoustic bandgap structures adapted to suppress parasitic resonances in tunable ferroelectric capacitors and method of operation and fabrication therefore
US8194387B2 (en) 2009-03-20 2012-06-05 Paratek Microwave, Inc. Electrostrictive resonance suppression for tunable capacitors

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE879929C (de) * 1951-05-16 1953-06-18 Siemens Ag Piezoelektrischer Schwinger
US2875354A (en) * 1954-01-29 1959-02-24 Branson Instr Piezoelectric transducer
US3036231A (en) * 1958-07-24 1962-05-22 Sperry Prod Inc High resolution piezoelectric transducer
US3365590A (en) * 1968-01-23 Hewlett Packard Co Piezoelectric transducer
US3543058A (en) * 1969-11-10 1970-11-24 Westinghouse Electric Corp Piezoelectric transducer
US4101795A (en) * 1976-10-25 1978-07-18 Matsushita Electric Industrial Company Ultrasonic probe
US4122725A (en) * 1976-06-16 1978-10-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Length mode piezoelectric ultrasonic transducer for inspection of solid objects

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3058015A (en) * 1960-05-03 1962-10-09 Nesh Florence Dissipation of high frequency vibratory energy
US3714475A (en) * 1966-07-15 1973-01-30 H Eng Corp Resonator having counter rotating rigid parts
US4158787A (en) * 1978-05-08 1979-06-19 Hughes Aircraft Company Electromechanical transducer-coupled mechanical structure with negative capacitance compensation circuit

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3365590A (en) * 1968-01-23 Hewlett Packard Co Piezoelectric transducer
DE879929C (de) * 1951-05-16 1953-06-18 Siemens Ag Piezoelektrischer Schwinger
US2875354A (en) * 1954-01-29 1959-02-24 Branson Instr Piezoelectric transducer
US3036231A (en) * 1958-07-24 1962-05-22 Sperry Prod Inc High resolution piezoelectric transducer
US3543058A (en) * 1969-11-10 1970-11-24 Westinghouse Electric Corp Piezoelectric transducer
US4122725A (en) * 1976-06-16 1978-10-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Length mode piezoelectric ultrasonic transducer for inspection of solid objects
US4101795A (en) * 1976-10-25 1978-07-18 Matsushita Electric Industrial Company Ultrasonic probe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694339A3 (en) * 1994-07-27 1997-03-12 Hewlett Packard Co Ultrasonic transducer

Also Published As

Publication number Publication date
DE2949930A1 (de) 1980-09-25
JPS55123299A (en) 1980-09-22
US4240003A (en) 1980-12-16
GB2044582A (en) 1980-10-15
GB2044582B (en) 1983-05-05
JPH0128560B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1989-06-02

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Legal Events

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ST Notification of lapse