DE2742133A1 - Elektroakustischer wandler - Google Patents

Elektroakustischer wandler

Info

Publication number
DE2742133A1
DE2742133A1 DE19772742133 DE2742133A DE2742133A1 DE 2742133 A1 DE2742133 A1 DE 2742133A1 DE 19772742133 DE19772742133 DE 19772742133 DE 2742133 A DE2742133 A DE 2742133A DE 2742133 A1 DE2742133 A1 DE 2742133A1
Authority
DE
Germany
Prior art keywords
membrane
electroacoustic transducer
piezo
polarized
transducer according
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Withdrawn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
DE19772742133
Other languages
German (de)
English (en)
Inventor
William Donald Cragg
Anthony Newton Lawson
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of DE2742133A1 publication Critical patent/DE2742133A1/de
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DE19772742133 1976-09-21 1977-09-19 Elektroakustischer wandler Withdrawn DE2742133A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39063/76A GB1593271A (en) 1976-09-21 1976-09-21 Electro-acoustic transducers

Publications (1)

Publication Number Publication Date
DE2742133A1 true DE2742133A1 (de) 1978-03-23

Family

ID=10407417

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772742133 Withdrawn DE2742133A1 (de) 1976-09-21 1977-09-19 Elektroakustischer wandler

Country Status (18)

Country Link
US (1) US4186323A (https=)
JP (2) JPS5339114A (https=)
AR (1) AR212933A1 (https=)
AU (2) AU508882B2 (https=)
BE (1) BE858823A (https=)
BR (1) BR7706220A (https=)
CA (1) CA1114492A (https=)
CH (1) CH623700A5 (https=)
DE (1) DE2742133A1 (https=)
DK (1) DK148870C (https=)
ES (1) ES462476A1 (https=)
GB (1) GB1593271A (https=)
IT (1) IT1086321B (https=)
NL (1) NL7710161A (https=)
NZ (1) NZ185170A (https=)
PL (1) PL200966A1 (https=)
SE (1) SE413971B (https=)
ZA (1) ZA775530B (https=)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902545A1 (de) * 1979-01-24 1980-09-18 Akzo Gmbh Faden mit leitschichten
FR2465387A1 (fr) * 1979-09-12 1981-03-20 Audax Transducteur piezoelectrique
FR2473242A1 (fr) * 1980-01-08 1981-07-10 Thomson Csf Transducteur electroacoustique a dome actif
FR2498406A1 (fr) * 1981-01-16 1982-07-23 Thomson Csf Structure de transducteur electromecanique
FR2521380A2 (fr) * 1980-02-22 1983-08-12 Lectret Sa Transducteur acoustique

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3009068A1 (de) * 1980-03-10 1981-09-24 Reinhard Dipl.-Ing. Lerch Piezopolymer-wandler mit fester membranunterstuetzung
GB8325861D0 (en) * 1983-09-28 1983-11-02 Syrinx Presicion Instr Ltd Force transducer
DE3437488A1 (de) * 1984-10-12 1986-04-17 Richard Wolf Gmbh, 7134 Knittlingen Schallsender
US4654546A (en) * 1984-11-20 1987-03-31 Kari Kirjavainen Electromechanical film and procedure for manufacturing same
AU588933B2 (en) * 1985-12-10 1989-09-28 Alcatel Australia Limited Improvements in transducers
JPH01501421A (ja) * 1986-11-07 1989-05-18 プレッシー　オーストラリア　プロプライエタリー　リミテッド 低周波の水中音源として動作する複合ソナートランスジューサ
AU594852B2 (en) * 1986-11-07 1990-03-15 Gec Marconi Systems Pty Limited A composite sonar transducer for operation as a low frequency underwater acoustic source
US4825116A (en) * 1987-05-07 1989-04-25 Yokogawa Electric Corporation Transmitter-receiver of ultrasonic distance measuring device
FR2625640B1 (fr) * 1987-12-30 1990-06-22 Inst Francais Du Petrole Capteur piezo-electrique tubulaire a grande sensibilite
US5185549A (en) * 1988-12-21 1993-02-09 Steven L. Sullivan Dipole horn piezoelectric electro-acoustic transducer design
US5621264A (en) * 1995-08-07 1997-04-15 Ocean Power Technologies, Inc. Water craft using piezoelectric materials
PL325246A1 (en) * 1995-09-02 1998-07-06 New Transducers Ltd Inertial vibration transducer
US5901231A (en) * 1995-09-25 1999-05-04 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
DE19733233C1 (de) * 1997-08-01 1998-09-17 Wolf Gmbh Richard Elektroakustischer Wandler
US6438242B1 (en) * 1999-09-07 2002-08-20 The United States Of America As Represented By The Secretary Of The Navy Acoustic transducer panel
FI108204B (fi) * 1999-11-25 2001-11-30 Kari Johannes Kirjavainen Kalvo energioiden muuntamiseksi
JP2004532743A (ja) * 2000-10-25 2004-10-28 ワシントン ステート ユニバーシティ リサーチ ファウンデーション 圧電マイクロトランスデューサ、その使用法および製造法
US6847155B2 (en) * 2001-04-24 2005-01-25 Clemson University Electroactive apparatus and methods
US6937736B2 (en) * 2001-08-06 2005-08-30 Measurement Specialties, Inc. Acoustic sensor using curved piezoelectric film
NO314555B1 (no) * 2002-04-08 2003-04-07 Meditron Asa Piezoelektrisk vibrasjonssensor
KR20080080258A (ko) * 2005-05-31 2008-09-03 에모 라브스, 인크. 기계-음향 변환기용 최적 압전체 설계
EP2218120A2 (en) * 2007-10-29 2010-08-18 Humdinger Wind Energy LLC Energy converter with transducers for converting fluid-induced movements or stress to electricity
US20100322455A1 (en) * 2007-11-21 2010-12-23 Emo Labs, Inc. Wireless loudspeaker
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
US20110044476A1 (en) * 2009-08-14 2011-02-24 Emo Labs, Inc. System to generate electrical signals for a loudspeaker
DE112012006175B4 (de) * 2012-03-30 2018-08-16 Sumitomo Riko Company Limited Lautsprecher
WO2013175662A1 (ja) * 2012-05-24 2013-11-28 東海ゴム工業株式会社 スピーカー
WO2014143927A2 (en) 2013-03-15 2014-09-18 Emo Labs, Inc. Acoustic transducers
USD733678S1 (en) 2013-12-27 2015-07-07 Emo Labs, Inc. Audio speaker
USD741835S1 (en) 2013-12-27 2015-10-27 Emo Labs, Inc. Speaker
USD748072S1 (en) 2014-03-14 2016-01-26 Emo Labs, Inc. Sound bar audio speaker
JP6128281B2 (ja) * 2014-06-09 2017-05-17 株式会社村田製作所 振動装置および触覚提示装置
WO2017002573A1 (ja) * 2015-06-29 2017-01-05 富士フイルム株式会社 電気音響変換器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1967130C2 (de) * 1968-01-25 1982-04-01 Pioneer Electronic Corp., Tokyo Mechanisch-elektrisch bzw. elektrisch-mechanischer Wandler
DE2116573A1 (de) * 1971-04-05 1972-10-19 Tn Korperschallkompensierendes Mikrofon
JPS4829420A (https=) * 1971-08-20 1973-04-19
US3816774A (en) * 1972-01-28 1974-06-11 Victor Company Of Japan Curved piezoelectric elements
JPS4926285U (https=) * 1972-06-07 1974-03-06
JPS4924125A (https=) * 1972-06-26 1974-03-04
JPS5118197B2 (https=) * 1972-07-20 1976-06-08
JPS5197421A (en) * 1975-02-24 1976-08-27 Atsudengatadenki onkyohenkanki

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902545A1 (de) * 1979-01-24 1980-09-18 Akzo Gmbh Faden mit leitschichten
US4303733A (en) 1979-01-24 1981-12-01 Akzona Incorporated Filament with conductive layers
FR2465387A1 (fr) * 1979-09-12 1981-03-20 Audax Transducteur piezoelectrique
FR2473242A1 (fr) * 1980-01-08 1981-07-10 Thomson Csf Transducteur electroacoustique a dome actif
EP0032082A3 (en) * 1980-01-08 1981-07-29 Thomson-Csf Electro acoustic transducer with active dome
FR2521380A2 (fr) * 1980-02-22 1983-08-12 Lectret Sa Transducteur acoustique
FR2498406A1 (fr) * 1981-01-16 1982-07-23 Thomson Csf Structure de transducteur electromecanique
EP0056549A3 (en) * 1981-01-16 1982-08-04 Thomson-Csf Electromechanical transducer structure

Also Published As

Publication number Publication date
ES462476A1 (es) 1978-07-16
JPS5546400U (https=) 1980-03-26
US4186323A (en) 1980-01-29
ZA775530B (en) 1978-08-30
BE858823A (nl) 1978-03-20
SE7710433L (sv) 1978-03-22
DK148870B (da) 1985-10-28
CH623700A5 (https=) 1981-06-15
DK148870C (da) 1986-04-21
DK416277A (da) 1978-03-22
SE413971B (sv) 1980-06-30
BR7706220A (pt) 1978-07-04
IT1086321B (it) 1985-05-28
GB1593271A (en) 1981-07-15
AU508882B2 (en) 1980-04-03
NZ185170A (en) 1983-05-31
AU2877377A (en) 1979-03-22
PL200966A1 (pl) 1978-07-17
AR212933A1 (es) 1978-11-15
AU518390B2 (en) 1981-10-01
NL7710161A (nl) 1978-03-23
CA1114492A (en) 1981-12-15
JPS5339114A (en) 1978-04-10
AU5584380A (en) 1980-06-26

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee