GB2070891B - Active suspension electromechanical transducer and process for manufacturing same - Google Patents

Active suspension electromechanical transducer and process for manufacturing same

Info

Publication number
GB2070891B
GB2070891B GB8106336A GB8106336A GB2070891B GB 2070891 B GB2070891 B GB 2070891B GB 8106336 A GB8106336 A GB 8106336A GB 8106336 A GB8106336 A GB 8106336A GB 2070891 B GB2070891 B GB 2070891B
Authority
GB
United Kingdom
Prior art keywords
electromechanical transducer
active suspension
manufacturing same
suspension electromechanical
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
GB8106336A
Other languages
English (en)
Other versions
GB2070891A (en
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
Publication of GB2070891A publication Critical patent/GB2070891A/en
Application granted granted Critical
Publication of GB2070891B publication Critical patent/GB2070891B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Primary Cells (AREA)
  • Cell Separators (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
GB8106336A 1980-03-04 1981-02-27 Active suspension electromechanical transducer and process for manufacturing same Expired GB2070891B (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 (2)

Publication Number Publication Date
GB2070891A GB2070891A (en) 1981-09-09
GB2070891B true GB2070891B (en) 1984-06-20

Family

ID=9239302

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8106336A Expired GB2070891B (en) 1980-03-04 1981-02-27 Active suspension electromechanical transducer and process for manufacturing same

Country Status (8)

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

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* Cited by examiner, † Cited by third party
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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
GB2134748B (en) * 1983-01-17 1986-06-25 Victor Company Of Japan Loudspeaker diaphragm
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
US4820952A (en) * 1986-09-16 1989-04-11 Samsung Electro-Mechanics Co., Ltd. Film speaker using a piezo-electric element
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.
EP0711096A4 (en) * 1994-05-20 1999-09-22 Shinsei Corp TONER GENERATION 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
US6812624B1 (en) * 1999-07-20 2004-11-02 Sri International Electroactive polymers
US6781284B1 (en) 1997-02-07 2004-08-24 Sri International Electroactive polymer transducers and actuators
US6545384B1 (en) 1997-02-07 2003-04-08 Sri International Electroactive polymer devices
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
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
US7064472B2 (en) * 1999-07-20 2006-06-20 Sri International Electroactive polymer devices for moving fluid
DE60037433T2 (de) * 1999-07-20 2008-12-04 Sri International, Menlo Park Elektroaktive Polymergeneratoren
US7537197B2 (en) * 1999-07-20 2009-05-26 Sri International Electroactive polymer devices for controlling fluid flow
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
WO2001063738A2 (en) * 2000-02-23 2001-08-30 Sri International Electroactive polymer thermal electric generators
EP2290721B1 (en) * 2000-02-23 2017-09-20 SRI International Environmentally powered electroactive polymer generators
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
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
US6919669B2 (en) * 2002-03-15 2005-07-19 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 sonic applications
EP1751843B1 (en) * 2003-08-29 2012-09-19 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
TWI542269B (zh) 2011-03-01 2016-07-11 拜耳材料科學股份有限公司 用於生產可變形聚合物裝置和薄膜的自動化生產方法
KR20140019801A (ko) 2011-03-22 2014-02-17 바이엘 인텔렉쳐 프로퍼티 게엠베하 전기활성 중합체 작동기 렌티큘라 시스템
TW201251299A (en) * 2011-06-14 2012-12-16 Chief Land Electronic Co Ltd Transducer module
EP2828901B1 (en) 2012-03-21 2017-01-04 Parker Hannifin Corporation Roll-to-roll manufacturing processes for producing self-healing electroactive polymer devices
WO2013192143A1 (en) 2012-06-18 2013-12-27 Bayer Intellectual Property Gmbh 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)

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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 (https=) * 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 (https=) * 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
CA1173553A (en) 1984-08-28
GB2070891A (en) 1981-09-09
JPS56136098A (en) 1981-10-23
DE3161995D1 (en) 1984-03-01
EP0035426A1 (fr) 1981-09-09
US4518555A (en) 1985-05-21
US4401911A (en) 1983-08-30
ATE6015T1 (de) 1984-02-15
FR2477822A1 (fr) 1981-09-11
EP0035426B1 (fr) 1984-01-25
FR2477822B1 (https=) 1982-10-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee