FR2425785A1 - Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques - Google Patents

Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques

Info

Publication number
FR2425785A1
FR2425785A1 FR7813466A FR7813466A FR2425785A1 FR 2425785 A1 FR2425785 A1 FR 2425785A1 FR 7813466 A FR7813466 A FR 7813466A FR 7813466 A FR7813466 A FR 7813466A FR 2425785 A1 FR2425785 A1 FR 2425785A1
Authority
FR
France
Prior art keywords
piezo
low frequencies
electric transducers
mechanical amplification
acoustic antennas
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
FR7813466A
Other languages
English (en)
Other versions
FR2425785B1 (fr
Inventor
Bernard Tocquet
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.)
Etat Francais
Original Assignee
Etat Francais
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 Etat Francais filed Critical Etat Francais
Priority to FR7813466A priority Critical patent/FR2425785A1/fr
Priority to US06/037,055 priority patent/US4287582A/en
Priority to EP79400291A priority patent/EP0005409B1/fr
Priority to DE7979400291T priority patent/DE2960263D1/de
Publication of FR2425785A1 publication Critical patent/FR2425785A1/fr
Application granted granted Critical
Publication of FR2425785B1 publication Critical patent/FR2425785B1/fr
Granted 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
    • G10K11/08—Non-electric sound-amplifying devices, e.g. non-electric megaphones
    • 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/121—Flextensional transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

L'INVENTION A POUR OBJET DE NOUVEAUX TRANSDUCTEURS PIEZO-ELECTRIQUES AVEC AMPLIFICATEUR MECANIQUE INCORPORE. UN TRANSDUCTEUR SELON L'INVENTION COMPORTE UNE PLAQUE DE BASE RIGIDE 7; DEUX PLAQUES LATERALES 8A ET 8B DONT LE BORD INFERIEUR EST RELIE A LA PLAQUE 7 PAR UN AMINCISSEMENT 11; UN EMPILEMENT 1 D'ELEMENTS PIEZO-ELECTRIQUES 2 ALTERNANT AVEC DES ELECTRODES 3; UN PAVILLON 23 FORME D'UNE MEMBRANE ELASTIQUE ET FLEXIBLE QUI RELIE ENTRE EUX LES BORDS SUPERIEURS DES DEUX PLAQUES 8A ET 8B; UN BOITIER 27A, 27B ET UNE PEAU D'ETANCHEITE 29 TRANSPARENTE ACOUSTIQUEMENT. UNE APPLICATION EST L'EMISSION OU LA RECEPTION D'ONDES ACOUSTIQUES DE GRANDE PUISSANCE DANS LES TRES BASSES FREQUENCES COMPRISES PAR EXEMPLE ENTRE QUELQUES HERTZ ET 500HZ.
FR7813466A 1978-05-08 1978-05-08 Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques Granted FR2425785A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7813466A FR2425785A1 (fr) 1978-05-08 1978-05-08 Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques
US06/037,055 US4287582A (en) 1978-05-08 1979-05-08 Piezo transducers with mechanical amplification for very low frequencies, and acoustic antennas
EP79400291A EP0005409B1 (fr) 1978-05-08 1979-05-08 Transducteurs piézoélectriques à amplification mécanique pour très basses fréquences et antennes acoustiques
DE7979400291T DE2960263D1 (en) 1978-05-08 1979-05-08 Piezoelectric transducers with mechanical amplification for very low frequencies and acoustic antennas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7813466A FR2425785A1 (fr) 1978-05-08 1978-05-08 Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques

Publications (2)

Publication Number Publication Date
FR2425785A1 true FR2425785A1 (fr) 1979-12-07
FR2425785B1 FR2425785B1 (fr) 1981-05-29

Family

ID=9207972

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813466A Granted FR2425785A1 (fr) 1978-05-08 1978-05-08 Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques

Country Status (4)

Country Link
US (1) US4287582A (fr)
EP (1) EP0005409B1 (fr)
DE (1) DE2960263D1 (fr)
FR (1) FR2425785A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107154747A (zh) * 2017-06-05 2017-09-12 西安交通大学 一种基于柔性放大结构的径向压电驱动器

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709359A (en) * 1982-06-28 1987-11-24 Magnovox Government And Industrial Electronics Company End weighted reed sound transducer
AU578129B2 (en) * 1984-12-19 1988-10-13 Gould Inc. A rare earth flextensional transducer
US4757548A (en) * 1985-12-02 1988-07-12 Fenner Jr Thomas C Speaker system and dome-shaped enclosure therefor
EP0297100B1 (fr) * 1986-03-19 1992-04-22 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Transducteurs sonars
US4764907A (en) * 1986-04-30 1988-08-16 Allied Corporation Underwater transducer
WO1988003739A1 (fr) * 1986-11-07 1988-05-19 Plessey Australia Pty. Limited Transducteur sonar composite destine a fonctionner comme source acoustique sous-marine a basse frequence
FR2688112B1 (fr) * 1988-04-28 1996-10-11 France Etat Armement Transducteurs electro-acoustiques directifs comportant une coque etanche en deux parties.
US5497357A (en) * 1988-12-23 1996-03-05 Alliedsignal Inc. Shock-resistant flextensional transducer
US5742561A (en) * 1990-05-10 1998-04-21 Northrop Grumman Corporation Transversely driven piston transducer
GB2348774B (en) * 1990-11-28 2001-02-21 Raytheon Co Electro-acoustic transducers
US5126979A (en) * 1991-10-07 1992-06-30 Westinghouse Electric Corp. Variable reluctance actuated flextension transducer
DE4135408A1 (de) * 1991-10-26 1993-04-29 Man Nutzfahrzeuge Ag Verfahren zur umwandlung elektrischer energie in mechanische schwingungen, sowie vorrichtungen zur durchfuehrung dieses verfahrens
US5406531A (en) * 1993-04-30 1995-04-11 The United States Of America As Represented By The Secretary Of The Navy Low frequency flex-beam underwater acoustic transducer
US6002648A (en) * 1998-10-16 1999-12-14 Western Atlas International, Inc. Slotted cylinder marine siesmic method and source
US6717332B2 (en) 2000-04-18 2004-04-06 Viking Technologies, L.C. Apparatus having a support structure and actuator
US6548938B2 (en) 2000-04-18 2003-04-15 Viking Technologies, L.C. Apparatus having a pair of opposing surfaces driven by a piezoelectric actuator
US6879087B2 (en) 2002-02-06 2005-04-12 Viking Technologies, L.C. Apparatus for moving a pair of opposing surfaces in response to an electrical activation
US6759790B1 (en) * 2001-01-29 2004-07-06 Viking Technologies, L.C. Apparatus for moving folded-back arms having a pair of opposing surfaces in response to an electrical activation
US20030062071A1 (en) * 2001-09-28 2003-04-03 Sorbo Nelson W. Dense-phase fluid cleaning system utilizing ultrasonic transducers
US7368856B2 (en) 2003-04-04 2008-05-06 Parker-Hannifin Corporation Apparatus and process for optimizing work from a smart material actuator product
WO2007023262A1 (fr) * 2005-08-26 2007-03-01 Halliburton Energy Services, Inc. Appareil et procedes pour generer des ondes acoustiques
US20070064539A1 (en) * 2005-08-26 2007-03-22 Wei Han Generating acoustic waves
US7591343B2 (en) * 2005-08-26 2009-09-22 Halliburton Energy Services, Inc. Apparatuses for generating acoustic waves
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
EP2624968B1 (fr) * 2010-10-04 2016-12-28 Dr. Hielscher GmbH Dispositif et procédé pour contraindre des systèmes générateurs d'oscillations haute fréquence composites
JP2016516358A (ja) 2013-03-15 2016-06-02 イモ ラブス， インコーポレイテッド 屈曲制限部材を有する音響変換器
DE102015212686A1 (de) * 2015-07-07 2017-01-12 Robert Bosch Gmbh Schallwandler

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB123145A (en) * 1918-02-11 1919-02-11 Creed & Co Ltd Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds.
US3258738A (en) * 1963-11-20 1966-06-28 Honeywell Inc Underwater transducer apparatus
US3277433A (en) * 1963-10-17 1966-10-04 William J Toulis Flexural-extensional electromechanical transducer
FR2096795A1 (fr) * 1970-06-29 1972-02-25 Whitehall Electronics Corp

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614486A (en) * 1969-11-10 1971-10-19 Physics Int Co Lever motion multiplier driven by electroexpansive material
US3649857A (en) * 1970-07-30 1972-03-14 Ibm Mechanical energy storage and release device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB123145A (en) * 1918-02-11 1919-02-11 Creed & Co Ltd Improvements in or relating to Means for Amplifying Small Movements, especially applicable for Producing Sounds.
US3277433A (en) * 1963-10-17 1966-10-04 William J Toulis Flexural-extensional electromechanical transducer
US3258738A (en) * 1963-11-20 1966-06-28 Honeywell Inc Underwater transducer apparatus
FR2096795A1 (fr) * 1970-06-29 1972-02-25 Whitehall Electronics Corp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107154747A (zh) * 2017-06-05 2017-09-12 西安交通大学 一种基于柔性放大结构的径向压电驱动器

Also Published As

Publication number Publication date
FR2425785B1 (fr) 1981-05-29
EP0005409A2 (fr) 1979-11-14
EP0005409B1 (fr) 1981-04-15
DE2960263D1 (en) 1981-05-07
EP0005409A3 (en) 1979-11-28
US4287582A (en) 1981-09-01

Similar Documents

Publication Publication Date Title
FR2425785A1 (fr) Transducteurs piezo-electriques a amplification mecanique pour tres basses frequences et antennes acoustiques
GB1520118A (en) Transducers
JPS62164011U (fr)
CA2194605A1 (fr) Transducteur acoustique multifrequences a bandes larges
ATE223137T1 (de) Akustische vorrichtung mit biegewellenmoden
GB1430725A (en) Acoustic surface wave devices
SE9101425L (sv) Elektroakustisk ombandlare innefattande en tätad kapsel
FR2469852A1 (fr) Transducteur ultra-sonique utilisable comme sonar
FR2441311A1 (fr) Pavillon acoustique perfectionne et agencement transducteur-pavillon
AU504238B2 (en) Acoustic surface wave device with harmonic coupled transducers
GB1281945A (en) Underwater electro-acoustic transducer
SU592025A1 (ru) Устройство дл излучени плоских ультразвуковых волн
GB1402352A (en) Electroacoustic transducers
GB1395294A (en) Acoustic surface wave device
CA2137187A1 (fr) Procede d'emission d'ondes acoustiques tres basses frequences a forte puissance, et transducteurs correspondants
JPS52113717A (en) Electro-acoustic transducer
JPS62231593A (ja) 圧電送受波器
JPS5245922A (en) Driving system for electric-acoustic cnverter of piezoelectric type
SU668723A1 (ru) Бокова стенка вибрационного грохота
RU2014758C1 (ru) Электроакустический преобразователь
JPS6127277Y2 (fr)
JPS53116756A (en) Inter-digital transducer for elastic surface wave
JPH01129631U (fr)
GB1427226A (en) Acoustic surface wave devices
JPH0413919Y2 (fr)

Legal Events

Date Code Title Description
ST Notification of lapse