FR2473242B1 - - Google Patents

Info

Publication number
FR2473242B1
FR2473242B1 FR8000311A FR8000311A FR2473242B1 FR 2473242 B1 FR2473242 B1 FR 2473242B1 FR 8000311 A FR8000311 A FR 8000311A FR 8000311 A FR8000311 A FR 8000311A FR 2473242 B1 FR2473242 B1 FR 2473242B1
Authority
FR
France
Prior art keywords
membrane
shape
transducer
radiating
staving
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.)
Expired
Application number
FR8000311A
Other languages
English (en)
Other versions
FR2473242A1 (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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR8000311A priority Critical patent/FR2473242A1/fr
Priority to AT80401785T priority patent/ATE3607T1/de
Priority to DE8080401785T priority patent/DE3063551D1/de
Priority to EP80401785A priority patent/EP0032082B1/fr
Priority to US06/222,673 priority patent/US4440983A/en
Priority to CA000367950A priority patent/CA1158987A/fr
Priority to JP103881A priority patent/JPS56103597A/ja
Priority to DK5081A priority patent/DK5081A/da
Publication of FR2473242A1 publication Critical patent/FR2473242A1/fr
Application granted granted Critical
Publication of FR2473242B1 publication Critical patent/FR2473242B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/26—Damping by means acting directly on free portion of diaphragm or cone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/029—Diaphragms comprising fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S310/00—Electrical generator or motor structure
    • Y10S310/80—Piezoelectric polymers, e.g. PVDF

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Thermistors And Varistors (AREA)
FR8000311A 1980-01-08 1980-01-08 Transducteur electroacoustique a dome actif Granted FR2473242A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR8000311A FR2473242A1 (fr) 1980-01-08 1980-01-08 Transducteur electroacoustique a dome actif
DE8080401785T DE3063551D1 (en) 1980-01-08 1980-12-12 Electro acoustic transducer with active dome
EP80401785A EP0032082B1 (fr) 1980-01-08 1980-12-12 Transducteur électroacoustique à dôme actif
AT80401785T ATE3607T1 (de) 1980-01-08 1980-12-12 Elektroakustischer wandler mit aktiver kalotte.
US06/222,673 US4440983A (en) 1980-01-08 1981-01-05 Electro-acoustic transducer with active dome
CA000367950A CA1158987A (fr) 1980-01-08 1981-01-06 Transducteur electro-acoustique avec dome actif
JP103881A JPS56103597A (en) 1980-01-08 1981-01-07 Electroacoustic converter
DK5081A DK5081A (da) 1980-01-08 1981-01-07 Elektroakustisk transor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8000311A FR2473242A1 (fr) 1980-01-08 1980-01-08 Transducteur electroacoustique a dome actif

Publications (2)

Publication Number Publication Date
FR2473242A1 FR2473242A1 (fr) 1981-07-10
FR2473242B1 true FR2473242B1 (fr) 1982-10-01

Family

ID=9237325

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8000311A Granted FR2473242A1 (fr) 1980-01-08 1980-01-08 Transducteur electroacoustique a dome actif

Country Status (8)

Country Link
US (1) US4440983A (fr)
EP (1) EP0032082B1 (fr)
JP (1) JPS56103597A (fr)
AT (1) ATE3607T1 (fr)
CA (1) CA1158987A (fr)
DE (1) DE3063551D1 (fr)
DK (1) DK5081A (fr)
FR (1) FR2473242A1 (fr)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5033093A (en) * 1990-01-17 1991-07-16 Peavey Electronics Corporation Compact microphone and method of manufacture
DE3009068A1 (de) * 1980-03-10 1981-09-24 Reinhard Dipl.-Ing. Lerch Piezopolymer-wandler mit fester membranunterstuetzung
FR2511570A1 (fr) * 1981-08-11 1983-02-18 Thomson Csf Transducteur electroacoustique a polymere piezoelectrique
US4503564A (en) * 1982-09-24 1985-03-05 Seymour Edelman Opto-acoustic transducer for a telephone receiver
DE3320935A1 (de) * 1983-06-09 1984-12-13 Siemens AG, 1000 Berlin und 8000 München Ultraschall-sensor
FR2563959B1 (fr) * 1984-05-04 1990-08-10 Lewiner Jacques Perfectionnements aux transducteurs electro-acoustiques a electret
FR2603422B1 (fr) * 1986-08-27 1988-12-30 Inst Francais Du Petrole Procede pour realiser des capteurs piezo-electriques continus de sensibilite accrue et capteurs realises suivant le procede
DE3732412A1 (de) * 1987-09-25 1989-04-13 Siemens Ag Ultraschallwandler mit astigmatischer sende-/empfangscharakteristik
US5450497A (en) * 1992-05-11 1995-09-12 Linaeum Corporation Audio transducer improvements
JPH09163498A (ja) * 1995-10-06 1997-06-20 Murata Mfg Co Ltd 球体型圧電スピーカ
US6563930B1 (en) * 1996-12-04 2003-05-13 Murata Manufacturing Co., Ltd. Speaker
JP3134835B2 (ja) * 1997-12-27 2001-02-13 株式会社村田製作所 スピーカ
US6243475B1 (en) * 1997-05-28 2001-06-05 Murata Manufacturing Co., Ltd. Speaker
US6121716A (en) * 1997-07-11 2000-09-19 The United States Of America As Represented By The United States Department Of Energy Apparatus and method for prevention of cracking in welded brittle alloys
US20030036746A1 (en) 2001-08-16 2003-02-20 Avi Penner Devices for intrabody delivery of molecules and systems and methods utilizing same
JP3555505B2 (ja) * 1999-06-16 2004-08-18 株式会社村田製作所 スピーカ
JP4363554B2 (ja) * 1999-10-08 2009-11-11 タイコエレクトロニクスアンプ株式会社 二輪車ライダー用スピーカ内蔵ヘルメット
WO2003015469A1 (fr) * 2001-08-06 2003-02-20 Measurement Specialties, Inc. Capteur acoustique utilisant un film piezoelectrique courbe
JP2005106529A (ja) * 2003-09-29 2005-04-21 Hosiden Corp 圧電型振動センサ
US7176602B2 (en) * 2004-10-18 2007-02-13 Ssi Technologies, Inc. Method and device for ensuring trandsducer bond line thickness
JP5121011B2 (ja) 2004-11-24 2013-01-16 レモン メディカル テクノロジーズ リミテッド 音響トランスデューサを組み込んだインプラント可能な医療機器
JP4049179B2 (ja) * 2005-05-25 2008-02-20 オンキヨー株式会社 スピーカー振動板およびスピーカー構造体
WO2007054878A1 (fr) * 2005-11-09 2007-05-18 Nxp B.V. Agencement pour optimiser la reponse en frequence d'un transducteur electroacoustique
DE102005061343B4 (de) * 2005-12-21 2010-11-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ultraschallwandler mit selbsttragender Anpassschicht sowie Verfahren zur Herstellung
US7912548B2 (en) 2006-07-21 2011-03-22 Cardiac Pacemakers, Inc. Resonant structures for implantable devices
WO2008011577A2 (fr) * 2006-07-21 2008-01-24 Cardiac Pacemakers, Inc. Transducteur à ultrasons pour un dispositif médical implanté à cavité métallique
US7652411B2 (en) * 2006-09-18 2010-01-26 Medicis Technologies Corporation Transducer with shield
US8334637B2 (en) * 2006-09-18 2012-12-18 Liposonix, Inc. Transducer with shield
US8825161B1 (en) 2007-05-17 2014-09-02 Cardiac Pacemakers, Inc. Acoustic transducer for an implantable medical device
AU2008266678B2 (en) 2007-06-14 2013-06-20 Cardiac Pacemakers, Inc. Multi-element acoustic recharging system
WO2009012783A2 (fr) * 2007-07-25 2009-01-29 Lars Goller Holding Aps Membrane de haut-parleur d'aigus à cône
US7658263B2 (en) * 2008-04-03 2010-02-09 Mann + Hummel Gmbh Device for noise transmission in a motor vehicle
US8630435B2 (en) * 2008-08-08 2014-01-14 Nokia Corporation Apparatus incorporating an adsorbent material, and methods of making same
US8011469B2 (en) * 2009-12-18 2011-09-06 Mann & Hummel Gmbh Tunable sound transmission device for a motor vehicle
US8794373B1 (en) * 2013-03-15 2014-08-05 Bose Corporation Three-dimensional air-adsorbing structure
DE102014209073A1 (de) * 2014-05-14 2015-11-19 Sennheiser Electronic Gmbh & Co. Kg Elektrostatischer elektroakustischer Wandler
WO2018079583A1 (fr) * 2016-10-28 2018-05-03 ソニー株式会社 Transducteur électroacoustique et dispositif transducteur électroacoustique

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2496307A (en) * 1944-06-23 1950-02-07 Albert G Perkins Milk flow control for milking machines
US3424873A (en) * 1964-07-15 1969-01-28 Lincoln Walsh Coherent-sound loudspeaker
US3496307A (en) * 1967-12-30 1970-02-17 Nippon Musical Instruments Mfg Loudspeaker
US4045695A (en) * 1974-07-15 1977-08-30 Pioneer Electronic Corporation Piezoelectric electro-acoustic transducer
JPS51131315A (en) * 1975-05-10 1976-11-15 Hitachi Zosen Corp Microphone
GB1593271A (en) * 1976-09-21 1981-07-15 Standard Telephones Cables Ltd Electro-acoustic transducers
FR2409654B1 (fr) * 1977-11-17 1985-10-04 Thomson Csf Dispositif transducteur piezoelectrique et son procede de fabrication

Also Published As

Publication number Publication date
JPS56103597A (en) 1981-08-18
CA1158987A (fr) 1983-12-20
ATE3607T1 (de) 1983-06-15
EP0032082A2 (fr) 1981-07-15
EP0032082B1 (fr) 1983-05-25
FR2473242A1 (fr) 1981-07-10
US4440983A (en) 1984-04-03
DE3063551D1 (en) 1983-07-07
EP0032082A3 (en) 1981-07-29
DK5081A (da) 1981-07-09

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Legal Events

Date Code Title Description
ST Notification of lapse