DE3161995D1 - Electromechanic transducer with active suspension and process for its production - Google Patents

Electromechanic transducer with active suspension and process for its production

Info

Publication number
DE3161995D1
DE3161995D1 DE8181400241T DE3161995T DE3161995D1 DE 3161995 D1 DE3161995 D1 DE 3161995D1 DE 8181400241 T DE8181400241 T DE 8181400241T DE 3161995 T DE3161995 T DE 3161995T DE 3161995 D1 DE3161995 D1 DE 3161995D1
Authority
DE
Germany
Prior art keywords
production
active suspension
transducer
electromechanic
delimitating
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
DE8181400241T
Other languages
German (de)
English (en)
Inventor
Pierre Ravinet
Francois Micheron
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
Application granted granted Critical
Publication of DE3161995D1 publication Critical patent/DE3161995D1/de
Expired 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Primary Cells (AREA)
  • Cell Separators (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
DE8181400241T 1980-03-04 1981-02-17 Electromechanic transducer with active suspension and process for its production Expired DE3161995D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8004838A FR2477822A1 (fr) 1980-03-04 1980-03-04 Transducteur electromecanique a suspension active et son procede de fabrication

Publications (1)

Publication Number Publication Date
DE3161995D1 true DE3161995D1 (en) 1984-03-01

Family

ID=9239302

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181400241T Expired DE3161995D1 (en) 1980-03-04 1981-02-17 Electromechanic transducer with active suspension and process for its production

Country Status (8)

Country Link
US (2) US4401911A (enExample)
EP (1) EP0035426B1 (enExample)
JP (1) JPS56136098A (enExample)
AT (1) ATE6015T1 (enExample)
CA (1) CA1173553A (enExample)
DE (1) DE3161995D1 (enExample)
FR (1) FR2477822A1 (enExample)
GB (1) GB2070891B (enExample)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477822A1 (fr) * 1980-03-04 1981-09-11 Thomson Csf Transducteur electromecanique a suspension active et son procede de fabrication
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
US4550797A (en) * 1983-01-17 1985-11-05 Victor Company Of Japan Loudspeaker diaphragm made of a molded, sintered ceramic body
GB2156521B (en) * 1984-03-27 1987-09-09 Nat Res Dev Finding the direction of a sound
FR2563959B1 (fr) * 1984-05-04 1990-08-10 Lewiner Jacques Perfectionnements aux transducteurs electro-acoustiques a electret
US5192470A (en) * 1986-02-27 1993-03-09 Raytheon Company Method of stretching and polarizing polymer materials
US4638207A (en) * 1986-03-19 1987-01-20 Pennwalt Corporation Piezoelectric polymeric film balloon speaker
JPH0416558Y2 (enExample) * 1986-09-16 1992-04-14
GB8714259D0 (en) * 1987-06-18 1987-07-22 Cogent Ltd Piezoelectric polymer transducers
DE3818931A1 (de) * 1988-06-03 1989-12-14 Electronic Werke Deutschland Lautsprecherbox
US5185549A (en) * 1988-12-21 1993-02-09 Steven L. Sullivan Dipole horn piezoelectric electro-acoustic transducer design
FR2705275B1 (fr) * 1993-05-13 1995-07-21 Saint Gobain Vitrage Int Vitrages feuilletés et procédé de fabrication.
AU676639B2 (en) * 1994-05-20 1997-03-13 Shinsei Corporation Sound generating device
FR2727215B1 (fr) * 1994-11-18 1996-12-20 Thomson Csf Dispositif de veille panoramique infrarouge statique a detecteurs matriciels multiples
JPH09163498A (ja) * 1995-10-06 1997-06-20 Murata Mfg Co Ltd 球体型圧電スピーカ
FR2750487B1 (fr) * 1996-06-28 2005-10-21 Thomson Csf Revetement pour la protection personnelle d'un fantassin
US6543110B1 (en) 1997-02-07 2003-04-08 Sri International Electroactive polymer fabrication
US6376971B1 (en) 1997-02-07 2002-04-23 Sri International Electroactive polymer electrodes
US7320457B2 (en) * 1997-02-07 2008-01-22 Sri International Electroactive polymer devices for controlling fluid flow
US6812624B1 (en) * 1999-07-20 2004-11-02 Sri International Electroactive polymers
US6545384B1 (en) 1997-02-07 2003-04-08 Sri International Electroactive polymer devices
US6781284B1 (en) 1997-02-07 2004-08-24 Sri International Electroactive polymer transducers and actuators
US6243475B1 (en) * 1997-05-28 2001-06-05 Murata Manufacturing Co., Ltd. Speaker
DK176073B1 (da) * 1998-03-03 2006-04-03 Limiel Aps Piezoelektrisk transformer
US7537197B2 (en) * 1999-07-20 2009-05-26 Sri International Electroactive polymer devices for controlling fluid flow
WO2001006575A1 (en) * 1999-07-20 2001-01-25 Sri International Improved electroactive polymers
FI108204B (fi) * 1999-11-25 2001-11-30 Kari Johannes Kirjavainen Kalvo energioiden muuntamiseksi
US6911764B2 (en) 2000-02-09 2005-06-28 Sri International Energy efficient electroactive polymers and electroactive polymer devices
EP1259992B1 (en) * 2000-02-23 2011-10-05 SRI International Biologically powered electroactive polymer generators
WO2001063738A2 (en) * 2000-02-23 2001-08-30 Sri International Electroactive polymer thermal electric generators
US7038358B2 (en) * 2002-03-15 2006-05-02 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Electro-active transducer using radial electric field to produce/sense out-of-plane transducer motion
WO2003079461A1 (en) * 2002-03-15 2003-09-25 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Electro-active device using radial electric field piezo-diaphragm for sonic applications
US6856073B2 (en) * 2002-03-15 2005-02-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Electro-active device using radial electric field piezo-diaphragm for control of fluid movement
EP2317639A1 (en) * 2002-03-18 2011-05-04 SRI International Electroactive polymer devices for moving fluid
AU2004316255B2 (en) * 2003-08-29 2009-12-03 Sri International Electroactive polymer pre-strain
KR100781329B1 (ko) * 2005-07-08 2007-11-30 드림 소닉 테크놀러지 리미티드 필름 스피커
JP5602626B2 (ja) 2007-06-29 2014-10-08 アーティフィシャル マッスル，インク． 感覚性フィードバック用途のための電気活性ポリマートランスデューサー
EP2239793A1 (de) 2009-04-11 2010-10-13 Bayer MaterialScience AG Elektrisch schaltbarer Polymerfilmaufbau und dessen Verwendung
US8712559B2 (en) * 2010-02-10 2014-04-29 The Board Of Trustees Of The University Of Illionois Adaptive control for uncertain nonlinear multi-input multi-output systems
EP2681748B1 (en) 2011-03-01 2016-06-08 Parker-Hannifin Corp Automated manufacturing processes for producing deformable polymer devices and films
EP2689284A4 (en) 2011-03-22 2014-08-20 Bayer Ip Gmbh ELECTROACTIVE POLYMER ACTUATOR LENS SYSTEM
TW201251299A (en) * 2011-06-14 2012-12-16 Chief Land Electronic Co Ltd Transducer module
US9876160B2 (en) 2012-03-21 2018-01-23 Parker-Hannifin Corporation Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices
US9761790B2 (en) 2012-06-18 2017-09-12 Parker-Hannifin Corporation Stretch frame for stretching process
WO2014066576A1 (en) 2012-10-24 2014-05-01 Bayer Intellectual Property Gmbh Polymer diode
GB2508639A (en) * 2012-12-06 2014-06-11 Pss Belgium Nv A loudspeaker diaphragm electro-actively driven at its edges

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2688156A (en) * 1949-04-01 1954-09-07 Monaco Foster Method of and apparatus for making plastic articles with a reentrant formation
US3342915A (en) * 1965-02-03 1967-09-19 Illinois Tool Works Undercut molding apparatus and method
SE324228B (enExample) * 1965-11-09 1970-05-25 Rigello Pak Ab
US3341895A (en) * 1966-03-15 1967-09-19 Monsanto Co Molding machines
US3757718A (en) * 1966-12-13 1973-09-11 Shell Oil Co Method for forming hollow articles of work-stengthenable plastic materials
JPS4829420A (enExample) * 1971-08-20 1973-04-19
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements
DE2417962A1 (de) * 1974-04-11 1975-10-23 Max Planck Gesellschaft Verfahren zur umwandlung von schwankungen eines koerpers in schwankungen einer elektrischen spannung und umgekehrt
NL7502453A (nl) * 1975-03-03 1976-09-07 Philips Nv Inrichting voor het omzetten van elektrische in akoestische trillingen en omgekeerd, voorzien van een membraan, bevattende tenminste een laag piezo-elektrisch polymeer materiaal.
FR2409654B1 (fr) * 1977-11-17 1985-10-04 Thomson Csf Dispositif transducteur piezoelectrique et son procede de fabrication
US4228121A (en) * 1978-11-06 1980-10-14 Peerless Machine & Tool Corporation Method and apparatus for forming multiple thickness bead
FR2477822A1 (fr) * 1980-03-04 1981-09-11 Thomson Csf Transducteur electromecanique a suspension active et son procede de fabrication

Also Published As

Publication number Publication date
ATE6015T1 (de) 1984-02-15
JPS56136098A (en) 1981-10-23
GB2070891A (en) 1981-09-09
GB2070891B (en) 1984-06-20
US4401911A (en) 1983-08-30
US4518555A (en) 1985-05-21
FR2477822B1 (enExample) 1982-10-01
EP0035426A1 (fr) 1981-09-09
EP0035426B1 (fr) 1984-01-25
CA1173553A (en) 1984-08-28
FR2477822A1 (fr) 1981-09-11

Similar Documents

Publication Publication Date Title
DE3161995D1 (en) Electromechanic transducer with active suspension and process for its production
JPS5326869A (en) Double walled plastic pipes and their manufacturing process
BE785231A (fr) Matiere en feuille fibreuse, douce et absorbante, et procede etappareilpour la fabriquer
BE848783A (fr) Membrane de moulage de pneumatiques et son procede de fabrication,
IE894149L (en) Process for the preparation of gelatine films
FR2278469A1 (fr) Poincon de formage de matieres thermoplastiques et procede de fabrication de corps creux en comportant l'utilisation
EP0152840A3 (en) Method for making ophthalmic lenses
KR890017068A (ko) 열성형가능한 물질의 블랭크를 만드는 방법
FR2381667A1 (fr) Gobelet en matiere plastique et son procede de fabrication
CA983230A (en) Physiologically compatible plastic contact lenses and a method for their production
CA1000683A (en) Polymer adsorbents and method for manufacture thereof
IT1230680B (it) Corpi formati in materiale termoplastico e procedimento per la loro produzione.
EP0156952A3 (en) Die drawing process and apparatus for piezoelectric polymer films and tubes
EP0363937A3 (en) Process for making film
GR81374B (enExample)
CA991387A (en) Method for fabricating a choke with adjustable air gap and choke produced thereby
FR2407807A1 (fr) Procede de fabrication d'un element en matiere plastique renforcee de fibres ayant une forme, un contour et des ouvertures specifiques
DE3272626D1 (en) A plasticized acrylonitrile polymer composition, an oriented film thereof and a process for producing the film
GB2030573B (en) Hydrophilic polymer and process for producing the same
NL185987C (nl) Werkwijze voor de vervaardiging van een bourdonbuis, bourdonbuis verkregen door toepassing van die werkwijze en manometer voorzien van een dergelijke bourdonbuis.
ES289729U (es) Dispositivo de acoplamiento de un eje y de una pieza que presenta un agujero de paso para el eje
FR2637836B1 (fr) Piece moulee de carrosserie pour vehicules, et son procede de fabrication
SU615996A1 (ru) Способ изготовлени полых изделий
FR2583678B1 (fr) Presse de type a traction
SU831601A2 (ru) Способ изготовлени абразивногоКРугА

Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee